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About Tripadvisor The Tripadvisor Group connects people to experiences worth sharing, and aims to be the world’s most trusted source for travel and experiences. We leverage our brands, technology, and capabilities to connect our global audience with partners through rich content, travel guidance, and two-sided marketplaces for experiences, accommodations, restaurants, and other travel categories. The subsidiaries of Tripadvisor, Inc. (Nasdaq: TRIP), include a portfolio of travel brands and businesses, including Tripadvisor, Viator, and TheFork. About the role The Tripadvisor Group Machine Learning Team is looking for an experienced individual to join a dynamic and fast-paced team to help support our Marketing efforts. As an ML II Scientist, you will apply your modeling skills to a wide variety of problem spaces including, but not limited to bidding for online advertising, customer modeling, experimental design, revenue optimization, attribution, recommendations, life time value. You will have access to the newest development tools and huge data sets. You will deploy your solutions online and be able to observe the impact of your work in real time as you help the company grow. Tripadvisor Group comprises Tripadvisor, the world's leading travel information site, and Viator, the leading marketplace for travel experiences.. The ML Team creates systems that influence the travel decisions of millions of people per day. We apply cutting edge machine learning techniques to a wide variety of areas. To ensure continued success, Tripadvisor promotes a culture of personal development, including social activities, journal clubs, memberships in online learning resources, and participation in industry conferences. Have a great time while shaping the future of travel! What You'll do: We are looking for someone who is independent, curious, and motivated, who likes discussing ideas and will bring something new to the table. You will be working in a diverse environment where you’ll collaborate with a broad multidisciplinary team of data scientists, analysts, software engineers, and product managers. You’ll be encouraged to take ownership of your projects and to find new opportunities and problems where machine learning could be applied to improve the business. Use machine learning models to solve a variety of core business problems across marketing. Seek out new opportunities to apply data science and machine learning in the marketing space across all channels (e.g.,paid, organic, search, demand creation, affiliates, CRM…) Automate ETL pipelines Prototype, evaluate, deploy and maintain new ML models in production Design AB tests and analyze their results Discover new ways to analyze and interpret the data Communicate progress and interpretation of experimental results to technical and business stakeholders Skills & Experience: Team player Loves to learn Great communication skills with both technical and non-technical partners Gets things done on time and on specification Genuinely interested in AI — you've played with AI tools yourself, and you're excited to grow your skills in that space rather than waiting for it to be handed to you Qualifications: PhD or Masters in Computer Science, Engineering, Statistics, or related field preferred (or masters with 2+ years of practical experience) Knowledge of AB test design and analysis Strong background in machine learning and statistics Solid foundation on data structures and algorithms Proficiency in Python for numerical/statistical programming (our group relies heavily on Numpy/Pandas/Scikit-learn) Ability to interpret and write complex SQL queries Experience with big data technologies, such as Hive and Spark Track record of leading the deployment and maintenance of models Hands-on experience with AI-powered tools We strive to create an accessible and inclusive experience for all candidates. If you need a reasonable accommodation during the application or the recruiting process, please make sure to reach out to your individual recruiter or our team at AccessibleRecruiting@tripadvisor.com . If you have any additional questions about careers at Tripadvisor you can email us at recruitment@tripadvisor.com . We have all the answers! #LI-Hybrid #LI-SM1

About Tripadvisor The Tripadvisor Group connects people to experiences worth sharing, and aims to be the world’s most trusted source for travel and experiences. We leverage our brands, technology, and capabilities to connect our global audience with partners through rich content, travel guidance, and two-sided marketplaces for experiences, accommodations, restaurants, and other travel categories. The subsidiaries of Tripadvisor, Inc. (Nasdaq: TRIP), include a portfolio of travel brands and businesses, including Tripadvisor, Viator, and TheFork. We are hiring a Director of Engineering for our fast-growing Tripadvisor Experiences org. Tripadvisor Experiences (Viator) is the world's leading marketplace for travel experiences. We believe that making memories is what travel is all about. And with 400,000+ travel experiences to explore—everything from simple tours to extreme adventures (and everything in between) —making memories that will last a lifetime has never been easier. We embrace flexibility in where and how work gets done and also value meaningful in-person moments to connect and collaborate. You can expect a remote-first working model with periodic in-person gatherings at your closest office for team connection, planning, or other key moments. This position is open to candidates based within a commutable distance (generally maximum up to 1.5 hours) from our Krakow office. What You'll Do: Build and lead a high-performing technical team by hiring, training, and mentoring engineers of all levels. Foster a collaborative and innovative team culture and champion effective Agile development processes. Develop project plans, timelines, budgets, and resource allocation strategies, and ensure projects are delivered on time and within scope and budget. Show leadership as a hands-on developer in multiple layers of the software stack and data stack. Perform code and design reviews. Work closely with principal engineers to drive technology strategy and roadmap that aligns to the wider organisation vision. Work closely with your Product Manager counterpart and the business owner to prioritize product features along with the engineering-driven tasks, striving for a good balance between business results and engineering robustness. Communicate effectively with technical and non-technical stakeholders to ensure alignment on project goals, commitments, and timelines. Define and enforce engineering best practices to ensure deliverables are complete, on time, and meeting a high-quality standard. Skills & Experience: 10 years’ experience of commercial software development Proven track record as a second-line leader with experience directly managing, coaching, and developing Engineering Managers Background of working in a product-focused company, collaborating closely with stakeholders to build up a backlog of product and technical initiatives Directly responsible for giving performance feedback and providing formal career planning to their team Strong mentorship skills, helping engineers to grow technically and professionally Solid understanding of the technologies and tools used by their team, with hands-on experience of designing and building scalable, high-performance systems Excellent ability to break down complex problems into simple solutions Proven leadership in driving major projects and actively participating in cross-functional teams in fast-paced, dynamic environments Accountable for high-quality execution, operations and overall team performance Uses strong analytical skills to identify risks early, mitigate issues and provide contingency plans Adept at making high-level decisions about product and technical direction, balancing business objectives with engineering capabilities. Understands modern software delivery methodologies and project management tools and uses them to drive successful outcomes.

The Tripadvisor Group connects people to experiences worth sharing, and aims to be the world’s most trusted source for travel and experiences. We leverage our brands, technology, and capabilities to connect our global audience with partners through rich content, travel guidance, and two-sided marketplaces for experiences, accommodations, restaurants, and other travel categories. The subsidiaries of Tripadvisor, Inc. (Nasdaq: TRIP), include a portfolio of travel brands and businesses, including Tripadvisor, Viator, and TheFork. A core focus of our strategic vision is building mobile apps that empower travelers to plan and book perfect trips. As part of the group building those apps you get to drive our company’s strategic growth and impact many millions of monthly active visitors worldwide. Our Mobile App Product Engineering teams are responsible for the features in our Flagship iOS and Android apps that delight millions of travelers around the world. One of these teams is looking for a software engineer with experience designing, building, and maintaining iOS apps, preferably at scale. The ideal candidate would bring excellent communication skills, technical acumen, and a product-mindset. What you’ll do: Deliver high-quality, scalable features to millions of travelers across many countries and languages. Collaborate with designers, product managers, and other engineers to iterate on new features. Practice, uphold, and promote high quality and reliability standards, respect clean code principles, implement unit and integration tests. Provide feedback on technical designs and code reviews to ensure the scalability, maintainability, and robustness of our iOS apps. Skills & Experience: At least 3 years of iOS development experience. Bachelor's degree in Computer Science, a related technical field or equivalent practical experience. Strong Computer Science fundamentals. Experience with Clean Architecture. Experience with large, multi-module projects. Experience with dependency injection. Solid understanding of MVVM. Good understanding of reactive programming. GraphQL know-how. Previous work in an Agile environment. User-centric mindset. Great creativity. Nice to haves: Experience with TCA. Experience with SwiftUI. Experience with server-driven UIs. What We Offer Competitive compensation packages , including base salary, annual bonus, and more. “Work your way” with flexibility to suit your lifestyle. We take a remote-friendly approach to collaboration, with the option to join on-site as often as you’d like in select locations. Flexible schedule . Work-life balance is ingrained in our culture by design. Trust and accountability make it work. Donation matching . Give back? Give more! We match qualifying charitable donations annually. Tuition assistance . Want to level up your career? We love to hear it! Receive annual support for qualified programs. Lifestyle benefit . An annual benefit to spend on yourself. Use it on travel, wellness, or whatever suits you. Travel perks . We believe that travel is employee development, so we provide discounts and more. Employee assistance program . We’re here for you with resources and programs to help you through life’s challenges. Health benefits . We offer great coverage and competitive premiums. Generous referral scheme. Help us grow and be rewarded with generous awards for referring successful candidates. Our Cultural Pillars: Traveller first: We exist to create value for our customer, the traveler. We enable our suppliers and partners to unlock this value. Their collective behaviors and insights are what drives us. Execution is our edge: We act fast, experiment, learn from failure, iterate, and improve the solutions of tomorrow across every aspect of our business. Our execution is agile, data-driven, prioritised, and built to scale. We assume no problem is someone else’s problem and finish what can be done today, knowing tomorrow will bring fresh challenges. We succeed together: The best outcomes are driven by empathic, humble, and diverse subject matter experts working toward shared goals. We collaborate relentlessly, challenge assumptions, give actionable feedback, and set each other up for success through empowered teams with a clear charter. We transparently take ownership of our growth, individually and as a team. We celebrate the quality of our effort, our learnings, and our collective achievements. Discover more in our Tech Blog , for an inside look into some of our exciting and ground-breaking technical projects here at Tripadvisor Group. Tripadvisor Group champions the unique identities, abilities, and experiences of all our people – employees, customers, and partners. This stems from our belief in the transformative power of travel, dining, and experiences to connect us and open doors to worlds very different from our own. Our ED&I strategy shapes how we approach our people, culture, business, and reputation. Tripadvisor Group strives to embed inclusion and belonging across all our brands. We strive to create an accessible and inclusive experience for all candidates. If you need a reasonable accommodation during the application or the recruiting process, please make sure to reach out to your individual recruiter or our team at AccessibleRecruiting@tripadvisor.com . If you have any additional questions about careers at Tripadvisor you can email us at recruitment@tripadvisor.com . We have all the answers! #LI-AMCVAY #Remote #Tripadvisor

AI Quality Assurance Program Manager I Tripadvisor About Tripadvisor The Tripadvisor Group connects people to experiences worth sharing, and aims to be the world’s most trusted source for travel and experiences. We leverage our brands, technology, and capabilities to connect our global audience with partners through rich content, travel guidance, and two-sided marketplaces for experiences, accommodations, restaurants, and other travel categories. The subsidiaries of Tripadvisor, Inc. (Nasdaq: TRIP), include a portfolio of travel brands and businesses, including Tripadvisor, Viator, and TheFork. The AI Quality Assurance Program Manager ensures that all artificial intelligence systems across Tripadvisor’s Travel Experiences execute reliably, accurately, and aligned with business goals. Positioning yourself at the intersection of AI performance, traveler satisfaction, and product development, you will establish testing frameworks, audit AI outputs, and turn quality findings into actionable operational insights. You will drive performance tracking, unblock cross-functional teams, and regularly report AI accuracy, success metrics, and enhancement roadmaps to executive leadership. Job Location: Hybrid This role is a hybrid position that requires 2/3 days per week/month in our London Office. Key Responsibilities Define the AI-Era Quality Strategy: Establish the end-to-end quality framework across human agents and AI agents, evolving QA from traditional sample-based auditing toward continuous, AI-enabled quality management. Establish AI Quality & Testing Frameworks: Design and maintain comprehensive evaluation benchmarks, testing protocols, and human-in-the-loop (HITL) workflows to verify AI agents, support bots, and recommendation engines operate as intended. Audit AI Outputs & Traveler Interactions: Continuously evaluate AI-generated outputs (e.g., automated support chats, tour recommendation accuracy, and booking updates) for intent fulfillment, safety, tone, and hallucination prevention. Drive Business Updates & Insights: Deliver executive-ready reporting that translates complex QA evaluation data, model accuracy rates, and error trends into strategic recommendations for business leaders. Lead Cross-Functional AI Improvements: Partner closely with Data Science, AI Engineering, Product, and CX teams to turn QA findings into prompt refinements, model fine-tuning, and updated knowledge base inputs. Maintain Release Momentum: Track project timelines for new AI deployments, manage QA regression testing schedules, and hold technical teams accountable to quality standards before full traveler rollout. Qualifications Experience: 4–6 years in technical program management, QA management, or AI/ML product operations focused on system reliability and evaluation. AI Evaluation Expertise: Strong operational knowledge of AI/LLM testing methodologies, prompt evaluation, intent recognition accuracy, and AI safety guardrails. Data-Driven Insight Delivery: Proven ability to analyze AI logs, leverage analytics tools, and turn quality metrics into clear, executive-ready presentations and dashboards. Cross-Functional Collaboration: Exceptional track record of bridging technical AI engineering teams with business stakeholders and front-line traveler support operations. Domain Empathy: Deep interest in online travel, traveler behavior, and maintaining high trust across consumer-facing AI interactions. Preferred Qualifications Hands-on experience with modern LLM evaluation tools, annotation platforms, or customer service AI tools (e.g., Zendesk AI, Intercom, Salesforce). Background in travel tech, e-commerce marketplaces, or fast-scaling consumer platforms. What We Offer Competitive compensation packages (routinely benchmarked against the latest industry data), including base salary and annual bonuses “Work your way” with flexibility to suit your lifestyle. Tripadvisor Group takes a remote-friendly approach to collaboration across a worldwide team, with the option to join on-site as often as you’d like or as required by your team. Flexible schedule. Work-life balance is ingrained in our culture by design. Trust and accountability make it work. Donation matching. Give back? Give more! We match qualifying charitable donations annually. Tuition assistance. Want to level up your career? We love to hear it! Receive annual support for qualified programs. Lifestyle benefit. An annual benefit to spend on yourself. Use it on travel, wellness, or whatever suits you. Travel perks. We believe that travel is employee development, so we provide discounts and more. Employee assistance program. We’re here for you with resources and programs to help you through life’s challenges. Health benefits. We offer great coverage and competitive premiums. Generous referral scheme. Help us grow and be rewarded with generous awards for referring successful candidates. Our Cultural Pillars: Traveler first We exist to create value for our customer, the traveler. We enable our suppliers and partners to unlock this value. Their collective behaviors and insights are what drives us. Execution is our edge We act fast, experiment, learn from failure, iterate, and improve the solutions of tomorrow across every aspect of our business. Our execution is agile, data-driven, prioritised, and built to scale. We assume no problem is someone else’s problem and finish what can be done today, knowing tomorrow will bring fresh challenges. We succeed together The best outcomes are driven by empathic, humble, and diverse subject matter experts working toward shared goals. We collaborate relentlessly, challenge assumptions, give actionable feedback, and set each other up for success through empowered teams with a clear charter. We transparently take ownership of our growth, individually and as a team. We celebrate the quality of our effort, our learnings, and our collective achievements. We strive to create an accessible and inclusive experience for all candidates. If you need a reasonable accommodation during the application or the recruiting process, please make sure to reach out to your individual recruiter or our team at AccessibleRecruiting@tripadvisor.com. If you have any additional questions about careers at Tripadvisor you can email us at recruitment@tripadvisor.com. We have all the answers! #LI-WR1