Senior Software Engineer
ClearanceJobs
Software Engineer (Mid/Senior)Location: Onsite | Washington, DC Clearance: Active TS/SCI required; CI Polygraph required Employment Type: Full-time, salaried, with full benefitsThe Company & Mission: Join a mission-driven defense technology company building AI/ML-enabled maritime sensor systems and intelligence platforms that support U.S. national security operations, including systems deployed on U.S. Navy submarines. This role sits within the company's Services team — the applied engineering and technical advisory arm embedded alongside government customers to design, build, and operate the AI pipelines, data infrastructure, and software systems that take emerging AI capability from concept to fielded mission impact. The team brings together machine learning engineers, data engineers, software engineers, cloud architects, and operational subject matter experts who pair deep technical skill with a working understanding of how the Intelligence Community and DoD actually function day to day.What This Role is All About: We're looking for a Software Engineer (leveled mid to senior depending on experience) to build and maintain full stack software supporting AI/ML and analytic mission operations. You'll work across front-end interfaces, back-end services, and APIs that power mission workflows, collaborating closely with data engineers, AI/ML practitioners, and senior engineering staff. More senior candidates will additionally take on architectural ownership, technical mentorship, and team-level technical direction.What You'll Be Doing:Design and implement full stack software components for AI/ML and analytic applications, from front-end UIs to back-end services and APIsDevelop RESTful APIs, microservices, and event-driven architecturesBuild user interfaces and operator-facing dashboards used in mission workflowsCollaborate with data scientists, AI/ML engineers, and the broader engineering team on system integration and optimizationImplement automated testing and contribute to CI/CD pipelines and DevSecOps toolingParticipate in code reviews and maintain high coding quality, security, and performance standardsTroubleshoot and resolve issues across development and production environmentsSupport development and operation of MCP server integrations and agentic AI toolingLead architectural decision-making, technology selection, and technical direction across complex systemsProvide technical mentorship to mid- and junior-level engineers; establish coding standards and development practicesWhat You Bring:4+ years of hands-on software development experience building production systems (8+ years for senior consideration)Active TS/SCI clearance with active CI Polygraph required — candidate must already hold this; no ability to sit for one as part of onboardingProficiency in a modern front-end framework (React, Angular, or Vue) plus at least one back-end language/framework (Python, Node.js, Java, Go, or similar)Experience with relational and/or non-relational databases (PostgreSQL, MySQL, MongoDB, Redis)Working knowledge of API design (REST and/or GraphQL) and microservice patternsExperience with cloud platforms and containerization (Docker, Kubernetes)Solid grasp of software engineering best practices, design patterns, and version control (Git)Demonstrated ability and willingness to rapidly learn novel AI platforms and tool integrations, including those enabling agentic AI capabilitiesProven track record leading technical teams and mentoring developers (for senior consideration)Deep knowledge of secure coding practices and auth/authz (OAuth, SAML, OIDC) (for senior consideration)Bonus Points:Strong AWS cloud skills (ECS/EKS, Lambda, S3, IAM, RDS, CloudWatch)Experience with GitLab and GitLab CI/CDDevSecOps exposure (secure SDLC, SAST/DAST, container/dependency scanning, secrets management)Familiarity with MCP servers or tool-using LLM systemsExperience with DoD or Intelligence Community analytics and data platforms (e.g., Palantir-adjacent tooling)Military experience strongly preferredIntelligence Community experience strongly preferredBenefits:Equity participation401(k) with company matchUnlimited PTODedicated sick time11 paid holidaysPaid parental leaveComprehensive medical, dental, and vision coverageLife insurance and short- and long-term disability coverageProfessional development and certification reimbursementTechnology stipend for home office setupReferral and performance bonusesGroup ID: 91164143
- ...unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today’s five billion mobile subscribers and...Senior
- Job-ID28983270Reference26-21443Remote100% Remote Position Title: Senior Software Engineer Short Term Assignment - 2 months Remote, Bethesda, MD The IoT team manages and supports the enterprise IoT ecosystem, including connected device platforms, integrations, security,...SeniorTemporary workRemote work
$136k - $187k
...This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk.The Classified Senior Software Engineer in Test OpportunityWe are seeking a highly specialized and experienced individual for a critical Software Engineer in Test...SeniorLocal areaWorldwideFlexible hours$131.3k - $237.35k
...We are looking for creative, driven, and mission-focused professionals ready to take their career to the next level.As a Senior Software Engineer, you will:Support the development of distributed backend services, APIs, and platform microservices supporting enterprise...SeniorFull timeRemote workFlexible hours- DescriptionSenior Software Engineer - TS/SCI Xcelerate Solutions is seeking a TS/SCI cleared Senior Software Engineer to join our mission-driven team. This role supports our client’s efforts to design and implement a cutting-edge data-centric architecture leveraging cloud...Senior
$140k - $220k
...feature development independently within agile processes, mentoring engineers and conducting code reviews along the wayStay current with... ...new tools for potential adoptionWhat You Bring:5+ years of software engineering experience with a focus on backend systemsStrong experience...SeniorWorldwide- ...automated testing and data analysis for complex, mission-critical systems in the US Department of Defense (DOD), is seeking a Senior Software Engineer to be part of our Advanced Capabilities team and based out of our Arlington, VA location.We are seeking an experienced...SeniorFull timeWork at officeImmediate start
- ...A leading technology firm in Maryland is seeking a Senior AI Software Engineer to develop user-focused AI solutions. The position requires deep software engineering experience, proficiency in modern programming languages, and must include TS/SCI clearance. The role involves...Senior
- ...GEICO seeks a Senior Software Engineer to join the Underwriting Services Team in Bethesda, MD, shaping the next-gen underwriting platform across business lines. You will design, develop, and deploy core experiences that leverage AI, with a focus on scalability and production...Senior
- Job Posting TitleSenior Software Developer/Engineer CBS-O&MJob DescriptionJob Overview:Customer: Internal Revenue Services (IRS) Location: Remote... ....Clearance: No clearance required.Position Summary:Senior developer/engineer with strong application-level production...SeniorContract workFor contractorsFor subcontractorRemote workWorldwideRelocation package
- About The Role:Innovative Defense Technologies (IDT), a leading defense technology company, is seeking a Senior Software Engineer to be part of our Engineering team and based out of our Arlington, VA or Mount Laurel NJ location. The selected Software Engineer will be responsible...SeniorFull timeWork at officeImmediate start
$160k - $240k
.... Its products include Hivemind autonomy software, V-BAT and X-BAT aircraft, and Aechelon simulation... ...software integration, hardware, and test engineering to solve some of the hardest problems facing our customers.About the Job:As a Senior Software Engineer, you’ll build and own...SeniorFull timeTemporary workPart timeWorldwide- ...Developer to join our Services team, which works directly with U.S. Government customers to provide a comprehensive set of system/software engineering and information technology services to maintain, sustain, enhance, and improve/modernize a Program of Record for all-source...SeniorFull time
- DescriptionActioNet has an opening for a Senior Software Engineer requiring a Public Trust clearance located s Hybrid (1-2 days on-site) in Silver Spring, MD. ActioNet is an IT service provider and solutions integrator headquartered in Vienna, VA that works with the Federal...SeniorRemote work1 day per week
$191k - $253k
...partners. We're developing fully integrated hardware and software systems, including Lattice for Space Missions and... ...contested war-fighting domain.ABOUT THE JOBWe are looking for a Senior Tracking Software Engineer to join our rapidly growing team in Washington DC. In...SeniorFull timeWork experience placementImmediate start- ...Humana seeks a Senior Software Engineer to design, implement, and operate stateful services that underpin real-time decisioning and personalization platforms. You will architect state machines, transactional stores, and exactly-once processing while leveraging AI-assisted...Senior
$86.9k - $198k
Software Engineer, SeniorThe Opportunity: As a full stack developer, you can resolve a problem with a complete end-to-end solution in a fast, agile environment. If you’re looking for the chance to not just develop software, but to create a system that will make a difference...SeniorFull timeContract workPart timeWork at officeLocal areaRemote work- General information Job Posting Title Senior Software Engineer Date Monday, August 24, 2026 City Bethesda State MD Country United States Working time Full-time Description & Requirements Maximus is currently seeking a Senior Software...SeniorMinimum wageFull timeContract workTemporary workWork experience placementRemote work
$191k - $253k
...allied partners. We're developing fully integrated hardware and software systems, including Lattice for Space Missions and modular... ...in this contested warfighting domain.ABOUT THE JOBAs a Senior Software Engineer on Space Ground Software, you will own the architecture and...SeniorFull timeWork experience placementImmediate start- ...A technology solutions firm in Alexandria, Virginia is seeking Software Engineers of various experience levels, including Junior, Mid, Senior, and Subject-Matter Experts. Candidates should have expertise in Java and technologies like Spring and Docker, and must possess...Senior
$145k - $200k
...World-Changing CompanyPalantir builds the world’s leading software for data-driven decisions and operations. By bringing the right... ...or air-gapped, small hardware footprint or large. As a Senior Software Engineer on Substrate, you will design and build Palantir’s managed...SeniorFull timeWork experience placementWork at officeRemote workWork from homeRelocation package$131.3k - $237.35k
...to customers in the national security, engineering, and health industries. We deliver innovative... ...technology-enabled services and mission software capabilities to support Intelligence... ...the Opportunity Leidos is seeking a Senior Software Engineer to develop, integrate,...SeniorFull time$191k - $253k
...is at the forefront of incubating and maturing high-potential, software-defined, AI-native offerings that meet the toughest, newest... ...elite teams in Perception, AI, Motion Planning, Hardware, Test Engineering, Space, Networking, and Vehicle hardware, we craft cutting-edge...SeniorFull timeWork experience placementImmediate startRemote work$216k - $270k
Software is eating the world, but AI is eating software. We live in unprecedented times - AI has the potential to exponentially augment... ...competition.At Scale, our products include the Generative AI Data Engine, SGP, Donovan, and others that power the most advanced LLMs and...SeniorFull timeLive in$191k - $253k
...computer vision, sensor fusion, and networking technology to the military in months, not years.ABOUT THE JOBAt Anduril, our Software Engineers are at the forefront of defense technology, crafting high-impact, cutting-edge solutions that redefine innovation. You'll dive...SeniorFull timeWork experience placementImmediate start$184.9k - $250.2k
...guidance and advocating for Amazon's highest engineering standards* Collaborate with cross... ...Implement and drive best practices in modern software engineering—design, testing, version... ...AI technologies* Lead conversations with senior leadership.* Actively participate in hiring...SeniorInternshipFlexible hours$86.8k - $198k
Software Engineer, SeniorThe Opportunity: As a full stack developer, you can resolve a problem with a complete end-to-end solution in a fast... ...feature enhancements.This role is more than just coding. As a senior full stack developer, you’ll use your passion to master new...SeniorFull timeContract workPart timeWork at officeLocal areaRemote work$140k - $220k
...have high aspirations for the company and are looking for the right people to help fulfill the dream.We're looking for a Senior Software Engineer to join a team that spans two of ZoomInfo's most technically demanding domains. On the Engagement Intelligence side, we process...SeniorWorldwide- ...Senior Software EngineerWe are hiring a Senior Software Engineer, and we'd like you to consider joining us!eVisit rearchitects the very nature of how healthcare is delivered. We help our customers design care pathways that lower the total cost to deliver care, increase...Senior
$173k - $255k
...Affirm is building its own bank, and this Senior Software Engineer role sits in the engineering team that runs it. You will own bank systems end-to-end, design, build, and operate core surfaces, and drive AI-enabled outcomes in a small, autonomous team. The role offers...SeniorRemote work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Software Engineer. Be the first to apply!
- cybersecurity software engineer Washington DC
- graduate software engineer Washington DC
- software developer fintech Washington DC
- new graduate software engineer Washington DC
- senior robotics software engineer Washington DC
- software engineer visa sponsorship Washington DC
- software qa engineer Washington DC
- network software engineer Washington DC
- software engineer remote Washington DC
- part time software developer Washington DC

