Careers at Leidos

Leidos has an exciting opportunity for a Sr. Software Engineer in our Intel Security Sector's Analysis Solutions Business Area . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary As a Software Engineer on this program, you will have the opportunity to build strong systems, software, and cloud environments while providing operations and maintenance for critical systems. This role will provide technical expertise in the design, development, implementation and testing of customer tools and applications. Based in a DevOps framework, this role participates in and/or directs major deliverables of projects through all aspects of the software development lifecycle including scope and work estimation, architecture and design, coding and unit testing. Primary Responsibilities: Participates in and/or directs software programming initiatives using Java, JavaScript, Python, SpringBoot, and Hibernate. Develops software system validation and testing methods using Junit and Katalon and uses integrated custom developed software solutions to leverage automated deployment technologies Develop, prototype and deploy solutions within Commercial Cloud Solutions leveraging infrastructure platform services Coordinate closely with team members, Product Owners and Scrum Masters to ensure User Story alignment and implementation to customer use cases Support the Agile software development lifecycle following SAFe practices, using industry leading DevOps tools like GitHub, Jenkins, Unix bash scripting and leveraging tools such as JIRA and Confluence to track activities Analyze (though proof of concept, performance, and end-to-end testing) and effectively coordinate Infrastructure needs driven by developed software to meet customer mission needs. Apply and identify best practices and standard operating procedures creating innovative solutions to meet the technical needs of customers. Basic Qualifications: Significant experience in common Agile practices, service-orientated environments, and development practices Significant experience with Java, Spring, C2S and the software development lifecycle, delivering within DevOps toolsets/practices Direct experience utilizing software testing performance tools, such as Junit/Katalon and scripting languages, such as Python and Bash, while working in an Agile development environment Significant experience with development in Commercial Cloud Platforms (ex, AWS, Google Cloud, Azure) and leveraging cloud data services (ex: S3, RDS, EFS) Significant experience using version control systems and issue/problem tracking systems Bachelor’s degree with 8 or more years of prior relevant experience or Master’s with 6 or more years of relevant experience. To be considered must have an active TS/SCI with polygraph security clearance Preferred Qualifications: Experience with structured analysis and design methodologies Understanding of the customer's system development policies. #CABARESTON #ASBA #HALO If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting: January 22, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $107,900.00 - $195,050.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos has an exciting opportunity for a Sr. Java Developer in our Intel Security Sector's Analysis Solutions Business Area . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary A Java developer on this program provides Agile development and operations and maintenance for mission critical systems. Based in DevOps framework, this role participates in major deliverables of projects through all aspects of the software development lifecycle including scope and work estimation, design, coding and unit testing. Primary Responsibilities: Design, develop, test and maintain high-performance, scalable backend microservices using Java and the Spring Framework to meet customer information technology needs. Participate in software programming initiatives and code reviews. Develops software system validation and testing methods using Junit and Katalon and uses integrated custom developed software solutions to leverage automated deployment technologies Develop, prototype and deploy solutions within a cloud-based platform leveraging platform services. Support the Agile software development lifecycle following Program SAFe practices while coordinating closely with team members, Product Owners and Scrum Masters to ensure User Story alignment and implementation to customer use cases Document and perform systems software development, including deployment of build artifacts across different environments leveraging GitFlow constructs and using industry leading DevOps tools like GitHub, Jenkins, and scripting (e.g., python, bash) Apply and identify software development best practices and standard operating procedures creating innovative solutions to meet the technical needs of customers. Basic Qualifications: Familiarity with common Agile practices, service-orientated environments, and development practices Familiarity with Java based design patterns and implementing RESTful APIs. Familiarity with integrating with and delivering within DevOps toolsets/practices Familiarity with development in Commercial Cloud Platforms (ex, AWS, Google Cloud, Azure) and leveraging cloud data services (ex: S3, RDS, EFS) Familiarity with using version control systems and issue/problem tracking systems Bachelor’s degree with 8 or more years of prior relevant experience or Master’s degree with 6 or more years of relevant experience. Additional years of experience may be substituted in lieu of a degree. To be considered must have an active TS/SCI with polygraph security clearance Preferred Qualifications: Familiarity with the Spring Framework, microservices architecture and integrating with relational and NoSQL databases. Direct experience utilizing software testing performance tools, such as Junit and scripting languages, such as Python, and Bash while working in an Agile development environment Experience with SAFe development practices #CABARESTON #ASBA #HALO If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting: January 21, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $107,900.00 - $195,050.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos has an exciting opportunity for a Sr. Java Developer in our Intel Security Sector's Analysis Solutions Business Area . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary A Java Developer on this program provides Agile development and operations and maintenance for mission critical systems. Based in DevOps framework, this role participates in major deliverables of projects through all aspects of the software development lifecycle including scope and work estimation, design, coding and unit testing. Primary Responsibilities: Design, develop, test and maintain high-performance, scalable backend microservices using Java and the Spring Framework to meet customer information technology needs. Participate in software programming initiatives and code reviews. Develops software system validation and testing methods using Junit and Katalon and uses integrated custom developed software solutions to leverage automated deployment technologies Develop, prototype and deploy solutions within a cloud-based platform leveraging platform services. Support the Agile software development lifecycle following Program SAFe practices while coordinating closely with team members, Product Owners and Scrum Masters to ensure User Story alignment and implementation to customer use cases Document and perform systems software development, including deployment of build artifacts across different environments leveraging GitFlow constructs and using industry leading DevOps tools like GitHub, Jenkins, and scripting (e.g., python, bash) Apply and identify software development best practices and standard operating procedures creating innovative solutions to meet the technical needs of customers. Basic Qualifications: Familiarity with common Agile practices, service-orientated environments, and development practices Familiarity with Java based design patterns and implementing RESTful APIs. Familiarity with integrating with and delivering within DevOps toolsets/practices Familiarity with development in Commercial Cloud Platforms (ex, AWS, Google Cloud, Azure) and leveraging cloud data services (ex: S3, RDS, EFS) Familiarity with using version control systems and issue/problem tracking systems Bachelor’s degree with 8 or more years of prior relevant experience or Master’s degree with 6 or more years of relevant experience. Additional years of experience may be substituted in lieu of a degree. To be considered must have an active TS/SCI with polygraph security clearance Preferred Qualifications: Familiarity with the Spring Framework, microservices architecture and integrating with relational and NoSQL databases. Direct experience utilizing software testing performance tools, such as Junit and scripting languages, such as Python, and Bash while working in an Agile development environment Experience with SAFe development practices #CABARESTON #ASBA #HALO If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting: September 3, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $107,900.00 - $195,050.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos has an exciting opportunity for a Principal Java Developer in our Intel Security Sector's Analysis Solutions Business Area . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary A Java developer on this program provides Agile development and operations and maintenance for mission critical systems. Based in DevOps framework, this role participates in major deliverables of projects through all aspects of the software development lifecycle including scope and work estimation, architecture and design, coding and unit testing. Primary Responsibilities: Design, develop, test and maintain high-performance, scalable backend microservices using Java and the Spring Framework to meet customer information technology needs. Participates in software programming initiatives, shaping backend architecture, mentoring team members, and conducting code reviews. Develops and directs software system validation and testing methods using Junit and Katalon and uses integrated custom developed software solutions to leverage automated deployment technologies Develop, prototype and deploy solutions within a cloud-based platform leveraging platform services. Analyze (though proof of concept, performance, and end-to-end testing) and effectively coordinate Infrastructure needs driven by developed software to meet customer mission needs Support the Agile software development lifecycle following Program SAFe practices while coordinating closely with team members, Product Owners and Scrum Masters to ensure User Story alignment and implementation to customer use cases Document and perform systems software development, including deployment of build artifacts across different environments leveraging GitFlow constructs and using industry leading DevOps tools like GitHub, Jenkins, and scripting (e.g., python, bash) Apply and identify software development best practices and standard operating procedures creating innovative solutions to meet the technical needs of customers. Basic Qualifications: In-depth experience in common Agile practices, service-orientated environments, and development practices In-depth experience with Java and the Spring Framework, microservices architecture and design patterns, implementing RESTful APIs, and integrating with relational and NoSQL databases. In-depth experience integrating with and delivering within DevOps toolsets/practices Direct experience utilizing software testing performance tools, such as Junit and scripting languages, such as Python, and Bash while working in an Agile development environment In-depth experience with development in Commercial Cloud Platforms (ex, AWS, Google Cloud, Azure) and leveraging cloud data services (ex: S3, RDS, EFS) In-depth experience using version control systems and issue/problem tracking systems Bachelor’s degree with 12 or more years of prior relevant experience or Master’s degree with 10 or more years of relevant experience. Additional years of experience may be substituted in lieu of a degree. To be considered must have an active TS/SCI with polygraph security clearance Preferred Qualifications: Experience with writing software that interfaces with data technologies like Elasticsearch, Postgres, DynamoDB, Kafka, AWS SQS/SNS, AWS Lambda, and AWS S3. Experience with SAFe development practices #CABARESTON #ASBA #HALO If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting: January 21, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $131,300.00 - $237,350.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos has an exciting opportunity for a Java Developer (SME) in our Intel Security Sector's Analysis Solutions Business Area . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary As a Java Developer you will to provide Agile DevOps support to mission critical systems. The candidate will provide technical expertise and support in the design, development, implementation and testing of the customer tools and applications in support of Extracting, Transforming and Loading data into an enterprise Data Lake. Based in a DevOps framework, the candidate will participate in and/or direct major deliverables of projects through all aspects of the software development lifecycle including scope and work estimation, architecture and design, coding and unit testing. This role requires the development of custom code/scripts to quickly extract, triage and exploit data across domains and data stores. Primary Responsibilities: Design, develop, test and maintain high-performance, scalable backend microservices using Java and the Spring Framework to meet customer information technology needs. Participates in and direct software programming initiatives, shaping backend architecture, mentoring team members, and conducting code reviews. Develops and directs software system validation and testing methods using Junit and Katalon and uses integrated custom developed software solutions to leverage automated deployment technologies Develop, prototype and deploy solutions within a cloud-based platform leveraging platform services. Analyze (though proof of concept, performance, and end-to-end testing) and effectively coordinate Infrastructure needs driven by developed software to meet customer mission needs Support the Agile software development lifecycle following Program SAFe practices while coordinating closely with team members, Product Owners and Scrum Masters to ensure User Story alignment and implementation to customer use cases Document and perform systems software development, including deployment of build artifacts across different environments leveraging GitFlow constructs and using industry leading DevOps tools like GitHub, Jenkins, and scripting (e.g., python, bash) Apply and identify software development best practices and standard operating procedures creating innovative solutions to meet the technical needs of customers. Basic Qualifications: Extensive use and experience in common Agile practices, service-orientated environments, and development practices Extensive experience with Java and the Spring Framework, microservices architecture and design patterns, implementing RESTful APIs, and integrating with relational and NoSQL databases. Extensive experience with writing software that interfaces with data technologies like Elasticsearch, Postgres, DynamoDB, Kafka, AWS SQS/SNS, AWS Lambda, and AWS S3. Extensive experience integrating with and delivering within DevOps toolsets/practices Direct experience utilizing software testing performance tools, such as Junit and scripting languages, such as Python, and Bash while working in an Agile development environment Extensive experience with development in Commercial Cloud Platforms (ex, AWS, Google Cloud, Azure) and leveraging cloud data services (ex: S3, RDS, EFS) Extensive experience using version control systems and issue/problem tracking systems Master’s degree with 15+ years of prior relevant experience or Doctorate with 13+ years of relevant experience. Additional years of experience may be substituted in lieu of a degree. To be considered must have an active TS/SCI with polygraph security clearance. Preferred Qualifications: Experience with SAFe development practices At Leidos , the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you – apply today. #CABARESTON #ASBA #HALO If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting: April 27, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $154,050.00 - $278,475.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Ignite your curiosity. Solve the unsolvable. At Leidos, we do more than write code—we decode the unknown. Our San Diego-based research and engineering team takes on some of the nation’s toughest defense challenges using advanced signal processing, ocean remote sensing, and high-performance computing. We’re seeking a Software Engineer / Computer Scientist who enjoys solving complex problems and pushing the limits of performance. In this role, you’ll work alongside a multidisciplinary team of scientists and engineers with expertise in hydrodynamics, physics, acoustics, and signal processing to build impactful software that turns massive, complex data sets into meaningful insight. If you are motivated by innovation, energized by collaboration, and excited to see your work support real-world missions, this could be the right opportunity for you. What You’ll Do Collaborate with scientists and engineers to design, develop, and optimize advanced algorithms for next-generation radar, optical, and infrared sensor systems. Build scalable, high-performance backend systems for scientific computing in distributed environments. Integrate, refactor, and improve scientific codebases to increase efficiency and scalability. Translate and optimize existing code for GPU/CUDA acceleration and parallel or distributed execution. Test, document, maintain, and enhance complex software in Linux/Unix environments. Contribute in a collaborative environment that values technical excellence, creativity, and continuous growth. Required Qualifications Bachelor’s degree in Computer Science, Applied Mathematics, Physics, or a related field with 4+ years of backend software development experience, or a Master’s degree with 2+ years of experience. Equivalent experience may be considered in place of a degree. U.S. citizenship and the ability to obtain a Top Secret clearance; active Top Secret clearance preferred. Strong expertise in C/C++ backend software development, including large-scale, performance-critical applications. Experience with high-performance computing, parallel and distributed processing, and technologies such as MPI. Hands-on experience with GPU/CUDA programming and optimization. Familiarity with AI/ML and LLM concepts and algorithms. Strong foundation in advanced mathematics or physics, with the ability to translate theory into practical software solutions. Proficiency in Linux/Unix development environments. Experience with scientific programming, algorithm development, and system-level problem-solving. Solid understanding of software engineering principles and best practices. Strong written and verbal communication skills, including software documentation. Preferred Qualifications Active Top Secret clearance. Familiarity with Agile development, object-oriented design, and modern software architecture. Experience with Git, GitLab, MATLAB, and Fortran. Knowledge of multithreaded or shared-memory application development. SUBSEAMSS If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting: September 23, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $87,100.00 - $157,450.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos has a new and exciting opportunity for a Principal Biometrics Software Engineer in our Intel Security Sector's Analysis Solutions Business Area . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays, Immediate Vesting in our 401K, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! **To be considered you must have an active and current TS/SCI w/ Poly security clearance** Job Description The Biometrics Software Engineer role specializes in integrating biometric technologies (e.g., fingerprint, facial recognition, iris scanning) from systems such as IDEMIA's MBSS into existing software systems, requiring expertise in both biometric algorithms and software development practices to seamlessly connect biometric data capture with other applications and platforms. Primary Responsibilities Biometric Integration: Design and implement software modules to integrate various biometric modalities (facial recognition, fingerprint, iris scan) with existing applications and systems using provided SDKs and APIs. API Development: Develop and maintain application programming interfaces (APIs) for third-party applications to interact with the biometric system. System Architecture: Contribute to the overall system architecture for biometric integration, ensuring scalability, security, and performance. Data Handling: Develop data processing pipelines to handle biometric data capture, storage, and transmission, adhering to privacy and security regulations. Software Development: Participate in software programming initiatives to support innovation and enhancement, using Java and JavaScript Technical Documentation: Create detailed technical documentation for integration processes, API usage, and system configurations. Troubleshooting: Identify and resolve issues related to biometric integration, including software compatibility and data quality. Basic Qualifications Biometric Technologies: Strong understanding of various biometric modalities (facial recognition, fingerprint, iris scanning), including their strengths, limitations, and accuracy factors API Integration: Experience with integrating third-party APIs and SDKs for biometric data capture and processing Security Knowledge: Understanding of security protocols and best practices for handling sensitive biometric data Database Management: Familiarity with database technologies to store and manage biometric data Software Development and Agile Practices: Expert with Java, Spring, C2S, and the software development lifecycle: Experience delivering within DevOps toolsets/practices. Education/Experience: Bachelor's degree with 12 or more years of prior relevant experience or Master's degree with 10 or more years of relevant experience. Additional years of experience may be substituted in lieu of a degree. Citizenship and Clearance: Candidate must be a US Citizen and possess an active TS//SCI with Polygraph. Preferred Qualifications Experience with structured analysis and design methodologies. Experience integrating with biometric-based identity management solutions. At Leidos , the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you – apply today. #CABARESTON #ASBA If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting: September 3, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $131,300.00 - $237,350.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

The Undersea Systems Division at Leidos currently has an opening for a Senior Systems Engineer to support a customer site in San Diego, California. This is an exciting opportunity to apply systems engineering, naval operations, test and evaluation, and technical project-management experience in support of large-scale fleet activities and critical maritime missions. The selected candidate will serve as the onsite Senior Systems Engineer and senior technical representative, working closely with the Leidos Project Manager, customer leadership, engineers, fleet personnel, operational stakeholders, and government representatives. The position will support day-to-day onsite execution of program activities while also contributing directly to systems engineering, integration, test, and evaluation efforts. Primary Responsibilities: Serve as the onsite senior technical representative for Leidos at the customer site in San Diego. Work side by side with customer leadership and technical personnel to support day-to-day program execution and mission priorities. Support the Leidos Project Manager with program planning, execution, customer coordination, schedule management, risk management, and delivery of program commitments. Lead and coordinate engineering activities across multiple technical disciplines and stakeholder organizations. Translate customer operational needs into technically sound engineering approaches, priorities, requirements, and recommendations. Coordinate with engineers, subcontractors, fleet personnel, operators, government stakeholders, and program leadership to resolve technical and operational issues. Track technical scope, milestones, schedules, deliverables, action items, risks, issues, dependencies, and decisions. Maintain project-management artifacts, including project plans, schedules, milestone trackers, risk and issue registers, action-item logs, and status reports. Identify schedule, resource, technical, interface, cost, or performance concerns and recommend mitigation strategies. Facilitate technical interchange meetings, program reviews, working groups, integrated product team meetings, and customer engagements. Guide engineering teams in systems architecture, requirements analysis, systems integration, interface definition, verification and validation, and technical documentation. Review engineering products and ensure technical deliverables are accurate, complete, consistent, and aligned with customer and program requirements. Support development and review of engineering analyses, technical assessments, system requirements, design documentation, integration plans, and program deliverables. Support test and evaluation planning, assessment, and reporting activities as needed; extensive at-sea testing is not expected to be the primary responsibility. Prepare and deliver technical briefings, program-status updates, decision presentations, risk updates, and recommendations to senior military and government leadership. Analyze technical and operational information to identify deficiencies, risks, limitations, dependencies, and opportunities for improvement. Coordinate responses to customer requests and ensure follow-up actions are completed on schedule. Support program planning, resource coordination, subcontractor or partner coordination, and preparation of technical inputs for contract deliverables. Provide technical and program leadership during periods of increased operational activity or surge support. Travel domestically and internationally as required to support customer engagements, program activities, fleet events, and occasional demonstrations or assessments. Communicate effectively with audiences ranging from engineers and operators to senior military and government leaders. Support other systems engineering, technical leadership, and Deputy Project Manager activities as assigned. Basic Qualifications: Bachelor’s degree in systems engineering, naval architecture, mechanical engineering, ocean engineering, electrical engineering, project management, or a related technical discipline. At least 10 years of progressively responsible experience in systems engineering, naval engineering, maritime operations, fleet support, technical leadership, program management, or a related technical field. Demonstrated experience supporting complex maritime, naval, shipboard, submarine, underwater, or other defense systems. Experience working directly with customer, government, military, engineering, or operational stakeholders to address technical requirements and mission needs. Experience leading or coordinating engineering activities across multiple technical disciplines or organizations. Experience supporting program execution, including schedule management, deliverables, action items, risks, issues, stakeholder coordination, and status reporting. Experience developing, reviewing, or managing technical documentation, engineering analyses, requirements, system designs, integration products, or program deliverables. Experience analyzing technical or operational information and communicating recommendations through written products, briefings, status reports, and presentations. Experience facilitating technical meetings, program reviews, working groups, or customer engagements. Ability to work effectively in a customer-facing environment alongside senior government, military, engineering, and program personnel. Ability to balance systems engineering responsibilities with onsite Deputy Project Manager duties. Ability and willingness to travel domestically and internationally, including overseas travel several times per year. Ability to obtain and maintain a TS/SCI security clearance . Preferred Qualifications Experience serving as a Deputy Project Manager, Assistant Project Manager, technical lead, chief engineer, or equivalent onsite program representative. Experience coordinating across government organizations, engineering teams, fleet personnel, contractors, operational commands, and other stakeholders. Experience with software development, scripting, or software-intensive systems. Technical competency with Linux operating systems and environments. Experience with maritime command-and-control, communications, combat systems, unmanned systems, or related mission technologies. Graduate degree in engineering, systems engineering, project management, or a related technical discipline. DAWIA, Defense Acquisition Corps, INCOSE, PMP, or other relevant professional certification. Experience supporting classified programs, defense acquisition, operational planning, intelligence organizations, or government technical agencies. SUBSEAMSS If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting: September 22, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $107,900.00 - $195,050.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

What if the software you developed directly enabled some of the nation's most critical missions? As a Senior Software Developer, you'll do more than write exceptional code, you'll help build innovative, secure, and scalable solutions that support Intelligence Community operations. If you're passionate about modern software engineering, enjoy collaborating in Agile teams, and thrive on solving complex technical challenges, Leidos wants to hear from you. On the Maru Program, you’ll join a high-performing team where your ideas are valued, your technical expertise is trusted, and your work has a tangible impact. Working alongside software engineers, architects, DevSecOps engineers, cybersecurity professionals, and mission stakeholders, you'll develop next-generation applications that deliver mission-critical capabilities in a fast-paced Agile environment. This is your opportunity to build cutting-edge software while contributing to work that truly matters. What You'll Do As a Senior Software Developer, you'll play a key role in designing, developing, testing, and deploying secure, scalable applications that support enterprise and mission operations. Please note Gaithersburg, MD is the program’s primary work location. Clearance Level Required: Active Top Secret/SCI with the ability to successfully pass a Polygraph examination. Primary Responsibilities: Design, develop, test, deploy, and maintain enterprise software applications using modern development practices. Collaborate with Product Owners, Scrum Masters, architects, and fellow developers to deliver high-quality software in Agile sprints. Participate in sprint planning, backlog refinement, daily stand-ups, sprint reviews, and retrospectives. Develop clean, maintainable, and well-documented code following secure coding standards and best practices. Design and implement RESTful APIs, microservices, and distributed application architectures. Perform code reviews and mentor junior developers to promote engineering excellence and knowledge sharing. Troubleshoot complex application issues and perform root cause analysis to improve system reliability and performance. Develop automated unit, integration, and end-to-end tests to ensure software quality. Collaborate with DevSecOps teams to implement CI/CD pipelines and automated deployment processes. Optimize application performance, scalability, and security across enterprise environments. Participate in architecture discussions and contribute to technical roadmaps and modernization initiatives. Support production deployments and resolve issues in mission-critical environments Required Qualifications: US citizenship is required per contract. Bachelor's degree in Computer Science, Software Engineering, or related field and 8-12 years of prior relevant experience or Master’s with 6-10 years of prior relevant experience . 8+ years of professional software development experience. Strong proficiency in one or more object-oriented programming languages such as: Java C# Python C++ Experience developing web-based applications and enterprise software solutions. Experience designing and consuming REST APIs. Experience working with relational and/or NoSQL databases. Strong understanding of object-oriented design principles and software design patterns. Experience using Git or other distributed version control systems. Experience working within Agile Scrum or SAFe development environments. Excellent analytical, debugging, and problem-solving skills. Strong written and verbal communication skills. Preferred Qualifications: Experience developing cloud-native applications in AWS, Azure, or other cloud platforms. Experience with containerization technologies such as Docker and Kubernetes. Experience building microservices architectures. Familiarity with DevSecOps practices and CI/CD tools including Jenkins, GitLab CI, or Azure DevOps. Experience with Infrastructure as Code tools such as Terraform or Ansible. Knowledge of message brokers such as Kafka or RabbitMQ. Experience with front-end frameworks such as React, Angular, or Vue.js. Familiarity with Elasticsearch, Redis, or other enterprise technologies. Experience with secure software development lifecycle (SSDLC) practices. Security+ certification or other DoD 8570/8140 compliant certification. #Maru #NSBA If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting: August 6, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $107,900.00 - $195,050.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

The Undersea Systems Division at Leidos currently has an opening for a Systems Engineer to support a customer site in San Diego, California. This is an exciting opportunity to apply systems engineering, naval operations, test and evaluation, and technical project-management experience in support of large-scale fleet activities and critical maritime missions. The selected candidate will serve as the onsite Systems Engineer and senior technical representative, working closely with the Leidos Project Manager, customer leadership, engineers, fleet personnel, operational stakeholders, and government representatives. The position will support day-to-day onsite execution of program activities while also contributing directly to systems engineering, integration, test, and evaluation efforts. Primary Responsibilities: Serve as the onsite senior technical representative for Leidos at the customer site in San Diego. Work side by side with customer leadership and technical personnel to support day-to-day program execution and mission priorities. Support the Leidos Project Manager with program planning, execution, customer coordination, schedule management, risk management, and delivery of program commitments. Lead and coordinate engineering activities across multiple technical disciplines and stakeholder organizations. Translate customer operational needs into technically sound engineering approaches, priorities, requirements, and recommendations. Coordinate with engineers, subcontractors, fleet personnel, operators, government stakeholders, and program leadership to resolve technical and operational issues. Track technical scope, milestones, schedules, deliverables, action items, risks, issues, dependencies, and decisions. Maintain project-management artifacts, including project plans, schedules, milestone trackers, risk and issue registers, action-item logs, and status reports. Identify schedule, resource, technical, interface, cost, or performance concerns and recommend mitigation strategies. Facilitate technical interchange meetings, program reviews, working groups, integrated product team meetings, and customer engagements. Guide engineering teams in systems architecture, requirements analysis, systems integration, interface definition, verification and validation, and technical documentation. Review engineering products and ensure technical deliverables are accurate, complete, consistent, and aligned with customer and program requirements. Support development and review of engineering analyses, technical assessments, system requirements, design documentation, integration plans, and program deliverables. Support test and evaluation planning, assessment, and reporting activities as needed; extensive at-sea testing is not expected to be the primary responsibility. Prepare and deliver technical briefings, program-status updates, decision presentations, risk updates, and recommendations to senior military and government leadership. Analyze technical and operational information to identify deficiencies, risks, limitations, dependencies, and opportunities for improvement. Coordinate responses to customer requests and ensure follow-up actions are completed on schedule. Support program planning, resource coordination, subcontractor or partner coordination, and preparation of technical inputs for contract deliverables. Provide technical and program leadership during periods of increased operational activity or surge support. Travel domestically and internationally as required to support customer engagements, program activities, fleet events, and occasional demonstrations or assessments. Communicate effectively with audiences ranging from engineers and operators to senior military and government leaders. Support other systems engineering, technical leadership, and Deputy Project Manager activities as assigned. Basic Qualifications: Bachelor’s degree in systems engineering, naval architecture, mechanical engineering, ocean engineering, electrical engineering, project management, or a related technical discipline. At least 10 years of progressively responsible experience in systems engineering, naval engineering, maritime operations, fleet support, technical leadership, program management, or a related technical field. Demonstrated experience supporting complex maritime, naval, shipboard, submarine, underwater, or other defense systems. Experience working directly with customer, government, military, engineering, or operational stakeholders to address technical requirements and mission needs. Experience leading or coordinating engineering activities across multiple technical disciplines or organizations. Experience supporting program execution, including schedule management, deliverables, action items, risks, issues, stakeholder coordination, and status reporting. Experience developing, reviewing, or managing technical documentation, engineering analyses, requirements, system designs, integration products, or program deliverables. Experience analyzing technical or operational information and communicating recommendations through written products, briefings, status reports, and presentations. Experience facilitating technical meetings, program reviews, working groups, or customer engagements. Ability to work effectively in a customer-facing environment alongside senior government, military, engineering, and program personnel. Ability to balance systems engineering responsibilities with onsite Deputy Project Manager duties. Ability and willingness to travel domestically and internationally, including overseas travel several times per year. Ability to obtain and maintain a TS/SCI security clearance . Preferred Qualifications Experience serving as a Deputy Project Manager, Assistant Project Manager, technical lead, chief engineer, or equivalent onsite program representative. Experience coordinating across government organizations, engineering teams, fleet personnel, contractors, operational commands, and other stakeholders. Experience with software development, scripting, or software-intensive systems. Technical competency with Linux operating systems and environments. Experience with maritime command-and-control, communications, combat systems, unmanned systems, or related mission technologies. Graduate degree in engineering, systems engineering, project management, or a related technical discipline. DAWIA, Defense Acquisition Corps, INCOSE, PMP, or other relevant professional certification. Experience supporting classified programs, defense acquisition, operational planning, intelligence organizations, or government technical agencies. SUBSEAMSS If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting: September 22, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $107,900.00 - $195,050.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.