Careers at Sumup

SumUp gives small businesses the tools they need to get paid, manage their money, and grow - today, over 4 million merchants across 37 markets worldwide rely on SumUp to do exactly that. The Bank Web squad sits within SumUp's Banking domain and owns the web experience across our banking surfaces - from the business account dashboard that merchants use daily, to the back-office tooling that powers the support teams behind them. The team has a clear mission: make Bank Web a genuinely first-class platform, on par with our mobile applications in quality, reliability, and performance. Joining now means being part of a team that’s at a key growth point - modernization work, growing scope across markets, and making architectural decisions that will shape how millions of merchants experience SumUp's banking products. 👉 Take a look at our Sofia office What you'll do Build and own features end-to-end across our web banking surfaces - from scoping and component implementation through testing, observability, and production maintenance Work across the full stack - including defining API contracts, working with backend proxies, and integrating with the services that power our banking platform Contribute to modernisation efforts, including architectural improvements, component refactoring, and stack migrations that reduce technical debt and accelerate future delivery Review peers' pull requests with attention to UI consistency, accessibility, and frontend best practices Participate in production support and incident reviews, helping to strengthen the squad's operational resilience across its web domain You'll be great for this role if… Strong experience with React, TypeScript, with a track record of delivering production-ready features end-to-end -not just isolated UI components Genuine full-stack capability: Experience defining API contracts, working with backend proxies, and owning integrations, not just consuming them; backend experience in Node, Kotlin, Java, or Golang is valued Solid understanding of frontend architecture, component design patterns, state management, and how frontend applications connect to backend services Experience writing and maintaining frontend tests (unit, integration, snapshot, end-to-end) and a genuine care for code quality and reliability Comfort navigating a complex, multi-stack codebase. React and TypeScript are core to this role, while our broader ecosystem also includes Node.js, Kotlin, Java, Go, Angular, AWS and Kafka. Prior experience with all of these is not required, but familiarity with most of them is a plus Curiosity about complex domains - banking products have intricate user flows and edge cases, and you enjoy digging into them to find the right solution Familiarity with CI/CD practices and getting changes safely to production; exposure to AI tooling to augment engineering workflows is a plus Why you should join SumUp 🌍 Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our modern Sofia office. This involves an office-first setup 🌈 Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced 🚀 Enrolment onto our Virtual Stock Option programme: you will own a stake in SumUp's future success 📚 A dedicated annual L&D budget of €2000 and 10 paid days of educational leave which can be used to attend conferences and/or advance your career through further education 🏖️ Generous time off: 25 days of paid leave, plus one extra day per year of service (up to 35), along with public holidays and special leave options 🏥 Peace of mind: additional health insurance and life insurance 💪 Stay active: on-site yoga and a co-sponsored Multisport card offering access to hundreds of sports facilities 🍽️ Meal support: benefit from a tax-free food voucher program plus flexibility via our Re:Benefits platform 🚌 Easy commute: free shuttle buses connecting directly to Joliot-Curie metro station 🌴 Break4me: 1-month sabbatical after 3 years of service 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team About SumUp Be empowered to do more that matters. At SumUp, we're on a mission to empower small businesses across the globe by providing simple and affordable tools that allow them to thrive. Today, over 4 million businesses in 37 markets rely on SumUp as their financial partner to manage payments, finance and customer relationships. Our commitment to small businesses is reflected in our diverse team of over 3,000 SumUppers from over 90 nationalities, united by global collaboration and an innovative mindset. Our core values lay the foundation for who we are and what we stand for, shaping our work culture and driving our success. We foster inclusivity and a continuous learning culture, providing a safe space for personal and professional growth. Our differences make us unique and strong as we strive to create an environment where everyone belongs and feels supported, no matter how they identify. SumUp is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce. We don't make hiring or employment decisions based on race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited. Discover more about our culture and opportunities on our careers website , and follow our journey on LinkedIn , Instagram , and TikTok . Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.

SumUp builds financial solutions for millions of small businesses worldwide. Our Identity Lifecycle mission powers the systems that determine who can access those solutions, ensuring every merchant we onboard is verified accurately, compliantly, and at scale. As Engineering Manager for Verification , you will lead the squad responsible for identity checks across all of SumUp's markets. This is a high-impact opportunity to guide a team running high-stakes workstreams across KYC and a wide range of regulatory environments, in a domain that is both technically complex and central to the customer journey. You will help bring clarity, stability, and momentum to a complex domain, supporting the evolution of legacy-heavy systems into a platform that is increasingly observable, maintainable, and resilient in the face of a fast-changing regulatory landscape. The role calls for strong technical depth and sound engineering judgment, enabling you to lead delivery with confidence while shaping the architecture decisions that will define how verification works at SumUp for years to come. You will work closely with Product, Compliance, and Operations to ensure solutions are practical, safe, and scalable, with regulatory requirements considered early and effectively throughout the development process. At the same time, you will create the conditions for engineers to do their best work by providing direction, support, and space for ownership. Together, you will raise the bar for how verification systems are designed, built, and operated at SumUp. What you'll do: Lead the Verification Squad as its engineering leader, creating focus and momentum by removing bottlenecks, managing cross-team dependencies, and helping engineers navigate complexity across legacy systems and evolving processes. Partner closely with Product, Compliance, and Operations to translate complex cross-market KYC and KYB requirements into clear engineering outcomes, identifying buildability considerations and regulatory risks early. Drive the technical and organisational improvements that strengthen the squad over time, reducing legacy overhead, improving tooling, and fostering greater shared ownership and sustainable delivery practices. Shape roadmap priorities alongside the PM, ensuring trade-offs are well understood and that compliance requirements and AI-influenced features are properly accounted for. Maintain high standards for how verification systems are built and operated, ensuring flows are observable, failures are controlled, and AI-driven components meet the same bar for reliability, traceability, and auditability as any other part of the system Develop engineers with intention through regular 1:1s, direct feedback, and deliberate stretch opportunities, building a team with strong technical and product judgment You'll be great for this role if: You have a proven track record of leading engineering teams through technical transformation, including large-scale migrations and legacy modernisation. You bring strong technical depth in backend technologies, particularly Go and API/integration architecture, and have hands-on experience with observability, CI/CD, and testing practices You have experience (or a appetite to learn) in KYC/KYB regulatory environments and understand how frameworks like eIDAS interact with product and engineering decisions You combine strategic thinking with hands-on technical credibility, and you communicate with clarity, empathy, and transparency across both technical and non-technical audiences You are a solid people leader who develops high performers, addresses underperformance directly and fairly, and builds psychologically safe, inclusive, high-performing teams Why you should join SumUp 🌎 Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Berlin office. This involves an office-first setup 🌈 Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced 🚀 Enrollment onto our Virtual Stock Option programme: you will own a stake in SumUp’s future success 📚 A dedicated annual L&D budget of €2000 for attending conferences and/or advancing your career through further education 💶 A corporate pension scheme where we match up to 20% of your contributions 🏖️ Generous time off: enjoy 28 days of paid leave plus public holidays and special leave days 🚵🏾‍♂️ Numerous other benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidised office lunches 🌴 Break4me: 1-month sabbatical after 3 years of service 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team About SumUp At SumUp, we’re on a mission to empower small businesses around the world with simple, affordable tools to help them start, run, and grow. More than 4 million merchants across 36 markets trust us as their financial partner — and we’re just getting started. We’re a global team of 3,000+ people from over 90 nationalities, united by curiosity, collaboration, and care. Our core values and culture shape everything we do, fostering inclusion, learning, and belonging. SumUp is proud to be an Equal Employment Opportunity employer, committed to building a safe, respectful, and diverse workplace where everyone can thrive. 👉 Explore more about our culture on our careers site , or follow us on LinkedIn and Instagram . Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.

At SumUp, we empower small businesses with simple, affordable tools to start, run, and grow. Our Global Bank teams build the financial services that help merchants manage their money and keep their businesses moving. For merchants, a transfer should feel simple. Behind that experience is a complex network of payment schemes, banks, providers, messages, certificates, reconciliations, and edge cases—all of which need to work together reliably. Transfers Europe squad is the integration layer connecting SumUp’s internal systems with the financial networks that move money across Europe and the UK. We build and run the backend services behind SEPA and UK transfer flows, helping move money accurately and reliably across external networks. As a Backend Engineer, you’ll take ownership of services that process real money. You’ll work on complex systems problems to ensure seamless integrations as we scale, while seeing a direct connection between your engineering decisions and merchant trust. If you enjoy understanding how systems behave under real-world conditions while improving them over time, we’d love to hear from you. Our tech stack includes Golang, AWS, Kafka, PostgreSQL, Redis and Kubernetes, supported by a strong observability toolchain with Prometheus, Grafana, and Honeycomb. We also actively use AI‑assisted development tools such as Cursor, GitHub Copilot, and others. What you’ll do Build and maintain production money movement backend services , contributing to their delivery, observability, and ongoing maintenance. Own and deliver well‑defined tasks and features , and contribute to larger projects within the team’s domain. Contribute to technical design and implementation , following established architectural patterns and best practices. Improve service reliability and quality by writing tests , enhancing monitoring , and following established delivery pipelines. Support the operation of the systems you work on by participating in on‑call rotations, incident response, and learning from post‑incident reviews. Apply a backend and systems perspective during refinement, raising questions about risks, dependencies, and edge cases. Collaborate closely with Product, QA, and other engineers to deliver end‑to‑end transfer and banking capabilities. You’ll be great for this role if you Have experience building backend services in a modern environment and supporting them in production. You are proficient in Golang and and comfortable learning and working with other languages as needed Are comfortable working with cloud‑based systems, containerized workloads, and automated delivery pipelines. Raise well-scoped pull requests, conduct thorough code reviews, and help maintain high standards of code quality and test coverage across the team Understand the fundamentals of system architecture, data modelling, and API design, and are eager to deepen this knowledge. Are curious about how your work fits into the broader system and product experience. Communicate clearly and collaborate effectively with engineers, product managers, and other stakeholders. Any of the following would be considered a plus Exposure to banking, payments, or financial systems, especially in regulated environments. Experience supporting systems with production traffic, including participating in incident response. Use of AI‑assisted tools to improve development speed, learning, or code quality. Why you should join SumUp 🌎 We’re a truly global team of 3200+ skilled professionals from 92+ countries, spread across 4 continents. Join the team from our Vilnius office. 🌈 Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced. 🚀 Enrolment onto our Virtual Stock Option programme: you will own a stake in SumUp’s future success 🏖️ Time off: 25 days of paid leave, plus special holidays 🏥 Peace of mind: health insurance through Gjensidige and life & accidental coverage from Ergo 💪 Stay active: gym membership allowance to help you keep fit on your terms 📚Career growth and learning opportunities: We invest in your development through regular training, mentorship programs, SumUp University cohort and a yearly learning budget (2,000 EUR) 💡We take learning and experimentation seriously with Hack Days every second Friday, and entire global Hack Weeks . 🌴 Break4me: 1-month sabbatical after 3 years of service 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team. Compensation : In Lithuania, for a Mid Level Engineer is 3,493 to 4,657 Euro Gross and for an Early Senior Engineer is 4,366 to 5,822 Euro Gross p/m + 2000 EUR annual learning budget + Virtual Stock Options. Offer may vary based on skills, experience and outcome from the hiring process. About SumUp At SumUp, we’re on a mission to empower small businesses around the world with simple, affordable tools to help them start, run, and grow. More than 4 million merchants across 37 markets trust us as their financial partner — and we’re just getting started. We’re a global team of 3,000+ people from over 90 nationalities, united by curiosity, collaboration, and care. Our core values and culture shape everything we do, fostering inclusion, learning, and belonging. SumUp is proud to be an Equal Employment Opportunity employer, committed to building a safe, respectful, and diverse workplace where everyone can thrive. 👉 Explore more about our culture on our careers site , or follow us on LinkedIn and Instagram . SumUp is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce. We don't make hiring or employment decisions based on race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited. Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.

At SumUp , we believe small merchants are the heartbeat of our communities. By joining the Payments BR tribe, you’ll help shape solutions that directly solve merchants’ everyday challenges and redefine how financial products empower entrepreneurship in Brazil. As an iOS Engineer , you'll be joining a growing squad at the centre of a highly cross functional environment: every change you make touches code, teams, and decisions owned across the wider SumUp organisation. You'll work side by side with engineers from other disciplines and tribes, help shape how the Brazilian merchant experience connects to our global platform, and have real influence over technical decisions from day one. What you'll do Design merchant facing Pix flows: Build in-app experiences that help merchants clearly understand and manage their Pix transactions, automatic Pix, and Pix credit Work across the SuperApp ecosystem: Coordinate changes with other tribes, including Bank, Lending, Online Payments, and Platform, to deliver features that touch shared code and shared surfaces Contribute to technical decisions as an equal: Take part in architecture discussions and help the squad decide how to build and scale the Pix domain Write clean, tested iOS code: Develop native features using Swift, SwiftUI, and UIKit, following modular architecture and solid testing practices Collaborate with the Mobile Chapter: Share knowledge, patterns, and lessons learned with other mobile engineers across SumUp Learn from experienced engineers: Be mentored by senior peers as you grow into the domain and build lasting relationships with stakeholders across tribes You'll be great for this role if… Native development experience with Swift, SwiftUI, UIKit, and Swift Package Manager Experience with modular architecture, MVVM, SOLID principles, and REST APIs Comfort working with unit testing and dependency injection Curiosity and genuine enthusiasm for technology, with a habit of asking questions and digging into how things work Ability to work well in a multicultural, cross functional environment and communicate clearly with English speaking colleagues Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.

Data Platform Engineer (Mid-Level) Onsite Role - Office First Team description As part of the Platform tribe, we're building a self-service, AI-ready Data Platform that powers SumUp's next big bets: data, AI, and real-time analytics. Our team designs and runs the infrastructure that lets data engineers, analysts, and ML teams across the business ship reliable pipelines and products without reinventing the wheel each time. This role sits at the centre of that work, giving you a genuine chance to shape how thousands of SumUppers build with data every day. What you'll do Build and evolve the data platform's infrastructure (Terraform, Kubernetes, GCP), so every environment is reproducible, version-controlled, and auditable Take end-to-end ownership of the reliability, performance, and scalability of the Data and AI platforms Develop self-service features, including for ETL and orchestration, so teams can move faster without bespoke integrations Automate operations to keep the platform highly available and cost-efficient as demand grows Evaluate emerging technologies and shape adoption strategies that improve platform capabilities and business outcomes Partner with product, infrastructure, data engineering, analytics, and AI/ML teams to make the standard path easier and safer than one-off integrations You'll be great for this role if… More than 4 years of experience building internal platforms consumed by other teams, in a Data, Platform, or Software Engineering role Strong software engineering background in Python or Go , along with solid SQL skills Hands-on knowledge of infrastructure and containerisation, such as Terraform, Helm, Docker, and Kubernetes Comfort working with observability, monitoring, alerting, and platform reliability engineering practices Experience in modern data stack (dbt, Snowflake, Trino, Airflow, etc.) Track record of setting up SDLC practices for analytics teams, including Git workflows, CI/CD, testing, and documentation standards It's OK if you don't meet 100% of these criteria. If you're missing a few, it just means you'll have room to learn and grow with us. Nice to have: Real-time streaming experience (e.g. Kafka, Flink, StarRocks, Pinot, Druid, ClickHouse) Experience working with systems at petabyte scale Experience implementing AI-enabled systems, such as agentic SRE or AI automation Why you should join SumUp 🌎 Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Berlin office. This involves an office-first setup 🌈 Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced 🚀 Enrolment onto our Virtual Stock Option programme: you will own a stake in SumUp's future success 📚 A dedicated annual L&D budget of €2000 for your individual development, which can be used to attend conferences and/or advance your career through further education 💶 A corporate pension scheme where we match up to 20% of your contributions 🏖 Generous time off: enjoy 28 days of paid leave plus public holidays and special leave days Numerous other benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidised office lunches 🌴 Break4me: 1-month sabbatical after 3 years of service 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team About SumUp Be empowered to do more that matters. At SumUp, we're on a mission to empower small businesses across the globe by providing simple and affordable tools that allow them to thrive. Today, over 4 million businesses in 38 markets rely on SumUp as their financial partner to manage payments, finance and customer relationships. Our commitment to small businesses is reflected in our diverse team of over 3,000 SumUppers from over 90 nationalities, united by global collaboration and an innovative mindset. Our core values shape who we are and what we stand for, shaping our work culture and driving our success. We foster inclusivity and a continuous learning culture, providing a safe space for personal and professional growth. Our differences make us unique and strong as we strive to create an environment where everyone belongs and feels supported, no matter how they identify. SumUp is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce. We don't make hiring or employment decisions based on race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited. Discover more about our culture and opportunities on our careers website , and follow our journey on LinkedIn , Instagram , and TikTok . 📽 Want to add a video or LinkedIn post to accompany this job ad? Check out the Global Employer Brand video library . Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.

SumUp builds financial solutions for millions of small businesses worldwide. Our Identity Lifecycle mission powers the systems that determine who can access those solutions, ensuring every merchant we onboard is verified accurately, compliantly, and at scale. As Engineering Manager for Verification , you will lead the squad responsible for identity checks across all of SumUp's markets. This is a high-impact opportunity to guide a team running high-stakes workstreams across KYC and a wide range of regulatory environments, in a domain that is both technically complex and central to the customer journey. You will help bring clarity, stability, and momentum to a complex domain, supporting the evolution of legacy-heavy systems into a platform that is increasingly observable, maintainable, and resilient in the face of a fast-changing regulatory landscape. The role calls for strong technical depth and sound engineering judgment, enabling you to lead delivery with confidence while shaping the architecture decisions that will define how verification works at SumUp for years to come. You will work closely with Product, Compliance, and Operations to ensure solutions are practical, safe, and scalable, with regulatory requirements considered early and effectively throughout the development process. At the same time, you will create the conditions for engineers to do their best work by providing direction, support, and space for ownership. Together, you will raise the bar for how verification systems are designed, built, and operated at SumUp. What you'll do: Lead the Verification Squad as its engineering leader, creating focus and momentum by removing bottlenecks, managing cross-team dependencies, and helping engineers navigate complexity across legacy systems and evolving processes. Partner closely with Product, Compliance, and Operations to translate complex cross-market KYC and KYB requirements into clear engineering outcomes, identifying buildability considerations and regulatory risks early. Drive the technical and organisational improvements that strengthen the squad over time, reducing legacy overhead, improving tooling, and fostering greater shared ownership and sustainable delivery practices. Shape roadmap priorities alongside the PM, ensuring trade-offs are well understood and that compliance requirements and AI-influenced features are properly accounted for. Maintain high standards for how verification systems are built and operated, ensuring flows are observable, failures are controlled, and AI-driven components meet the same bar for reliability, traceability, and auditability as any other part of the system Develop engineers with intention through regular 1:1s, direct feedback, and deliberate stretch opportunities, building a team with strong technical and product judgment You'll be great for this role if: You have a proven track record of leading engineering teams through technical transformation, including large-scale migrations and legacy modernisation. You bring strong technical depth in backend technologies, particularly Go and API/integration architecture, and have hands-on experience with observability, CI/CD, and testing practices You have experience (or a strong appetite to learn) in KYC/KYB regulatory environments and understand how frameworks like eIDAS interact with product and engineering decisions You combine strategic thinking with hands-on technical credibility, and you communicate with clarity, empathy, and transparency across both technical and non-technical audiences You are a strong people leader who develops high performers, addresses underperformance directly and fairly, and builds psychologically safe, inclusive, high-performing teams Why you should join SumUp 🌎 Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Sofia office. 🌈 Join a global team where you belong: Check out our D&I Initiatives and Employee Resource Groups such as Pride Club, SumAfro, Neurodiversity, Grupos Mais, Women in Tech, and more 🚀 Enrolment onto our Virtual Stock Option programme: you will own a stake in SumUp’s future success 📚 A dedicated annual L&D budget of €2000 for attending conferences and/or advancing your career through further education. In addition you can take up to 10 days’ educational leave to expand your skill set. 🏖️ You’ll receive 25 days’ paid leave, plus 1 additional day for each year of employment. 🚵🏾‍♂️ Numerous other benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidised office lunches 🌴 Break4me: 1-month sabbatical after 3 years of service 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team About SumUp At SumUp, we’re on a mission to empower small businesses around the world with simple, affordable tools to help them start, run, and grow. More than 4 million merchants across 36 markets trust us as their financial partner — and we’re just getting started. We’re a global team of 3,000+ people from over 90 nationalities, united by curiosity, collaboration, and care. Our core values and culture shape everything we do, fostering inclusion, learning, and belonging. SumUp is proud to be an Equal Employment Opportunity employer, committed to building a safe, respectful, and diverse workplace where everyone can thrive. 👉 Explore more about our culture on our careers site , or follow us on LinkedIn and Instagram . Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.

At SumUp , we believe small merchants are the heartbeat of our communities. By joining the Payments BR Tribe , you'll help shape solutions that directly solve merchants' everyday challenges and redefine how financial products empower entrepreneurship in Brazil. The tribe is deeply focused on the Brazilian market — understanding the real needs and behaviours of our merchants and building products that truly fit their world. You'll be part of a global, autonomous, cross-functional team of driven, purpose-led people who take ownership, embrace challenges, and care deeply about helping businesses succeed. As a (Senior) Backend Engineer , you'll be the technical anchor of a small, high-impact squad — bringing clarity to complex integration logic, setting the architectural direction, and helping a growing engineer reach their potential. This is a role for someone who finds satisfaction in making hard systems reliable, loves writing clean Go code, and isn't afraid to navigate the complexity that comes with building at scale in a fast-growing market. What you'll do Own the architecture: Design and author RFCs that shape how the domain evolves, driving clean, scalable solutions across our integration layer with internal SumUp services and third-party services as well. Write and review high-quality code: Take full ownership of backend delivery — from writing production-grade code to leading rigorous peer reviews that keep the codebase healthy and maintainable Drive technical standards: Establish clear documentation, testing practices, and CI/CD improvements that reduce technical debt and make the squad more autonomous over time Mentor and grow the team: Pair-program with and actively develop other engineers on the squad, acting as the technical reference point and fostering a culture of ownership and engineering excellence Collaborate broadly: Partner closely with the Engineering Manager, Product Manager, and cross-functional stakeholders to translate business needs into clear technical roadmaps and scalable solutions What makes you a great fit Solid backend development skills, with experience in Go, or strong experience in functional backend programming languages with a genuine drive to master Go quickly Strong expertise in code design, automated testing, CI/CD, performance optimisation, and building resilient, well-architected systems A track record of leading technical projects end to end — from writing design documents to shipping production improvements that hold up at scale Hands-on experience with AWS Cloud services and strong SQL optimisation skills with relational databases Have advanced English proficiency, with the ability to present and discuss technical topics clearly across teams and with non-technical stakeholders Experience contributing to technical strategy beyond the immediate squad Why you should join SumUp 🌍 Global Experience : Collaborate with a diverse team of 3,000+ people from over 90 countries, and join our global off-sites and hackathons. 🤝 Collaborative Culture: Join a team that values diversity, innovation, and teamwork, where your ideas and contributions truly matter. 📈 Career Growth : Be part of a global team working on large-scale fintech products used by millions of businesses. 💙 Great Benefits : Health plans, meal vouchers (VR), Zenklub, Wellhub, life insurance, childcare allowance, and more. 📚 Learning & Development : Access an annual budget of R$ 10,000 for education, certifications, and conferences. 🌴 Time Off : Enjoy 30 additional days off through our Break4Me program after 3 years at SumUp. 💸 Grow with Us: Participate in our virtual stock program and benefit from SumUp’s success with company shares. Learn More About SumUp 🇧🇷 Office tour at São Paulo 💡 Ask me anything: Engineering at SumUp 🚀 SumUp’s Innovation Hackathon 🤝 Get to know our hiring process Ready to Join us? Apply now and help us shape the future of financial solutions for small businesses Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.

At SumUp, the Global Bank team builds the core infrastructure and services that give merchants a digital bank account, helping small businesses manage their money easily and reliably. The Balance Management Squad sits at the core of the Global Bank Platform. Right now, our team is completing a major milestone: consolidating and modernizing our balance management system in Europe. The next big step is creating a global transaction history service; a single, shared platform used by all regions to give merchants consistent and transparent views of their financial activity. As a Backend Engineer , you’ll help modernize existing systems while balancing innovation with stability, collaborate with teams across regions, and build reliable services that manage diverse markets with different regulations. If you enjoy solving complex problems on high-load systems, are curious about banking, and are looking for a team that tackles challenges head-on, we’d love to hear from you. What You’ll Do Build and evolve the SumUp’s core banking services that powers ledger operations and transactions, transforming our regional systems into a unified, scalable global platform. Tackle complex distributed systems challenges, ensuring resilient services that continue to perform under high transaction volumes. Support modernization initiatives by improving observability, adding test coverage, refactoring code for long-term maintainability, and gradually introducing new architectural patterns without disrupting live banking operations. Contribute to key architectural decisions - build ledger and transaction history systems from the ground up, ensuring a globally scalable banking solution for our clients. Collaborate with teams across Risk, Treasury, Finance, and Infrastructure to ensure smooth, compliant, and reliable global operations Take ownership from design to production, running the services you build, monitoring their performance, and continuously improving how we deliver high-quality software at scale. You’ll be great for this role if You have solid backend experience building reliable, high-volume services and you think carefully about system design, APIs, data modeling, and how services interact. You are proficient in Golang and comfortable learning and working with other languages as needed, e.g. Kotlin or Elixir. You write maintainable, well-tested code, follow CI/CD best practices, and take responsibility for the software you build from development to production. You’re comfortable building, deploying, and running services in cloud environments like AWS using Docker and Kubernetes. You’re eager to learn about relational databases that perform well under load and maintain data consistency. You are a collaborator who enjoys working across regions, communicating clearly, exchanging feedback effectively, and making thoughtful technical decisions together. You have a curiosity for building reliable financial services and banking domain It’s a plus if you have Knowledge of Elixir - some of our legacy services are written in Elixir, and while it's not essential, it would be useful if you've worked with it before Deeper PostgreSQL experience - we rely heavily on Postgres, so if you've done performance tuning, complex queries, or schema design, that's a plus Experience with event streaming platforms (Kafka preferred) and modern observability stacks (Grafana, Honeycomb, etc.) Why you should join SumUp Be part of a company that values diversity and celebrates unique perspectives. Work with a global team of skilled professionals in an environment that fosters collaboration, learning, and growth. Be part of a global tribe building a banking solution from the ground up and delivering impactful solutions to the real-life problems of millions of SumUp merchants all over the world Career growth and learning opportunities: We invest in your development through regular training, mentorship programs, SumUp University leadership cohort and a yearly learning budget (2,000 EUR) Sabbatical program for tenured SumUppers Join a global team where you belong: Check out our D&I Initiatives and Employee Resource Groups such as Pride Club, SumAfro, Neurodiversity, Grupos Mais, Women in Tech, and more Health & wellness benefits: in-house fitness classes, gym in the office, subsidized Urban Sports Club and available psychotherapy sessions A lot of other benefits such as Subsidized Public Transport Card, Kita placement assistance, Pension Scheme, Language Learning platform/courses etc. Enrollment onto our virtual stock ownership program - you will own a stake in SumUp’s future success About SumUp Be empowered to do more that matters. At SumUp, we're on a mission to empower small businesses across the globe by providing a vast set of simple and affordable business tools to help them start, run, and grow their businesses. Today, over 4 million businesses in 36 markets rely on SumUp as their financial partner to manage payments, finance and customer relationships. Our commitment to small businesses is reflected in our diverse team of over 3,000 SumUppers from over 90 nationalities, united by global collaboration and an innovative mindset. Our core values lay the foundation for who we are and what we stand for, shaping our work culture and driving our success. We foster an inclusivity and continuous learning culture, providing a safe space for personal and professional growth. Our differences make us unique and strong as we strive to create an environment where everyone belongs and feels supported, no matter how they identify. SumUp is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce. We don't make hiring or employment decisions based on race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited. Explore career opportunities with us and join a team driven by collaboration, innovation, and a shared vision of creating a world where everyone can build a thriving business. Discover more about our vibrant and inclusive work culture and how we work on our careers website , and follow our journey on LinkedIn and Instagram . Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.

At SumUp, the Global Bank team builds the core infrastructure and services that give merchants a digital bank account, helping small businesses manage their money easily and reliably. The Balance Management Squad sits at the core of the Global Bank Platform. Right now, our team is completing a major milestone: consolidating and modernizing our balance management system in Europe. The next big step is creating a global transaction history service; a single, shared platform used by all regions to give merchants consistent and transparent views of their financial activity. As a Backend Engineer , you’ll help modernize existing systems while balancing innovation with stability, collaborate with teams across regions, and build reliable services that manage diverse markets with different regulations. If you enjoy solving complex problems on high-load systems, are curious about banking, and are looking for a team that tackles challenges head-on, we’d love to hear from you. The Vilnius team is a core part of the Global Bank domain. We own production systems, shape technical direction, and work closely with colleagues across SumUp’s global offices on critical merchant banking capabilities. Join our Vilnius Team today ( Vilnius office ). What You’ll Do Build and evolve the SumUp’s core banking services that powers ledger operations and transactions, transforming our regional systems into a unified, scalable global platform. Tackle complex distributed systems challenges, ensuring resilient services that continue to perform under high transaction volumes. Support modernization initiatives by improving observability, adding test coverage, refactoring code for long-term maintainability, and gradually introducing new architectural patterns without disrupting live banking operations. Contribute to key architectural decisions - build ledger and transaction history systems from the ground up, ensuring a globally scalable banking solution for our clients. Collaborate with teams across Risk, Treasury, Finance, and Infrastructure to ensure smooth, compliant, and reliable global operations Take ownership from design to production, running the services you build, monitoring their performance, and continuously improving how we deliver high-quality software at scale. You’ll be great for this role if You have solid backend experience building reliable, high-volume services and you think carefully about system design, APIs, data modeling, and how services interact. You are proficient in Golang and comfortable learning and working with other languages as needed, e.g. Kotlin or Elixir. You write maintainable, well-tested code, follow CI/CD best practices, and take responsibility for the software you build from development to production. You’re comfortable building, deploying, and running services in cloud environments like AWS using Docker and Kubernetes. You’re eager to learn about relational databases that perform well under load and maintain data consistency. You are a collaborator who enjoys working across regions, communicating clearly, exchanging feedback effectively, and making thoughtful technical decisions together. You have a curiosity for building reliable financial services and banking domain It’s a plus if you have Knowledge of Elixir - some of our legacy services are written in Elixir, and while it's not essential, it would be useful if you've worked with it before Deeper PostgreSQL experience - we rely heavily on Postgres, so if you've done performance tuning, complex queries, or schema design, that's a plus Experience with event streaming platforms (Kafka preferred) and modern observability stacks (Grafana, Honeycomb, etc.) Why you should join SumUp 🌎 We’re a truly global team of 3200+ skilled professionals from 92+ countries, spread across 4 continents. Join the team from our Vilnius office. 🌈 Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced. 🚀 Enrolment onto our Virtual Stock Option programme: you will own a stake in SumUp’s future success 🏖️ Time off: 25 days of paid leave, plus special holidays 🏥 Peace of mind: health insurance through Gjensidige and life & accidental coverage from Ergo 💪 Stay active: gym membership allowance to help you keep fit on your terms 📚Career growth and learning opportunities: We invest in your development through regular training, mentorship programs, SumUp University cohort and a yearly learning budget (2,000 EUR) 💡We take learning and experimentation seriously with Hack Days every second Friday, and entire global Hack Weeks . 🌴 Break4me: 1-month sabbatical after 3 years of service 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team. Compensation : In Lithuania, for a Mid Level Engineer is 3,493 to 4,657 Euro Gross and for an Early Senior Engineer is 4,366 to 5,822 Euro Gross p/m + 2000 EUR annual learning budget + Virtual Stock Options. Offer may vary based on skills, experience and outcome from the hiring process. About SumUp Be empowered to do more that matters. At SumUp, we're on a mission to empower small businesses across the globe by providing a vast set of simple and affordable business tools to help them start, run, and grow their businesses. Today, over 4 million businesses in 36 markets rely on SumUp as their financial partner to manage payments, finance and customer relationships. Our commitment to small businesses is reflected in our diverse team of over 3,000 SumUppers from over 90 nationalities, united by global collaboration and an innovative mindset. Our core values lay the foundation for who we are and what we stand for, shaping our work culture and driving our success. We foster an inclusivity and continuous learning culture, providing a safe space for personal and professional growth. Our differences make us unique and strong as we strive to create an environment where everyone belongs and feels supported, no matter how they identify. SumUp is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce. We don't make hiring or employment decisions based on race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited. Explore career opportunities with us and join a team driven by collaboration, innovation, and a shared vision of creating a world where everyone can build a thriving business. Discover more about our vibrant and inclusive work culture and how we work on our careers website , and follow our journey on LinkedIn and Instagram . Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.

The Run & Grow Tribe of Tribes powers the systems, insights, and experiences that keep millions of merchants engaged, successful, and growing with SumUp across every market we operate in. We're at a genuine inflection point in how we use data, moving from fragmented pipelines to a world-class data foundation built on stable business domains, trusted metrics, and AI-ready data products. This is a greenfield opportunity to shape how data is owned, defined, and built at scale, and as our Analytics Engineer, you'll be the connective tissue that makes that vision real. What you'll do Partner with squads across the tribe on event design and data contracts, maintaining staging pipelines, applying modelling conventions, and keeping domain outputs consistent, tested, and discoverable Model key business domains, including merchant activity, product adoption, lifecycle events, and risk scoring, building well-documented, quality-assured data products that serve as the trusted source of truth across the organisation Build and maintain the insights layer on top of governed domains, producing reusable KPI models, funnels, cohorts, and segmentations that Product, Commercial, and AI teams can self-serve with confidence Implement technical improvements including incremental processing strategies, performance optimisations, and scalable data architecture to support growing data volumes Contribute to SumUp's broader data domain strategy, helping establish durable ownership, consistent definitions, and a shared catalogue of data products that unlock self-serve analytics and AI at scale You'll be great for this role if… Strong, proven experience in analytics engineering or data engineering, with a track record of building and maintaining production data systems Expert-level SQL skills for complex transformations and query optimisation, with hands-on experience building layered data models in a modern data warehouse or lakehouse (e.g. Snowflake, Iceberg) and solid command of dbt, including testing, documentation, and modelling conventions Ability to think in terms of business domains, not just tables, translating complex business logic into clean, durable, and reusable data models across entities, events, states, and rules Comfort working across squads with Product Managers, Engineers, Analysts, and Data Scientists, contributing to data design conversations and helping teams treat data as a first-class deliverable Deep care for data quality, trust, and discoverability, building models others can rely on, with a proactive mindset around contracts, freshness, observability, and failure scenarios Why you should join SumUp 🌎 Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Berlin office. This involves an office-first setup 🌈 Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced 🚀 Enrolment onto our Virtual Stock Option programme: you will own a stake in SumUp's future success 📚 A dedicated annual L&D budget of €2000 for your individual development, which can be used to attend conferences and/or advance your career through further education 💶 A corporate pension scheme where we match up to 20% of your contributions 🏖️ Generous time off: enjoy 28 days of paid leave plus public holidays and special leave days 🏋️ Numerous other benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidised office lunches 🌴 Break4me: 1-month sabbatical after 3 years of service 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team About SumUp Be empowered to do more that matters. At SumUp, we're on a mission to empower small businesses across the globe by providing simple and affordable tools that allow them to thrive. Today, over 4 million businesses in 37 markets rely on SumUp as their financial partner to manage payments, finance and customer relationships. Our commitment to small businesses is reflected in our diverse team of over 3,000 SumUppers from over 90 nationalities, united by global collaboration and an innovative mindset. Our core values lay the foundation for who we are and what we stand for, shaping our work culture and driving our success. We foster inclusivity and a continuous learning culture, providing a safe space for personal and professional growth. Our differences make us unique and strong as we strive to create an environment where everyone belongs and feels supported, no matter how they identify. SumUp is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce. We don't make hiring or employment decisions based on race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited. Discover more about our culture and opportunities on our careers website , and follow our journey on LinkedIn , Instagram , and TikTok . Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.