Job Title:
Software Engineer
Company: Leidos
Location: West Mclean, VA
Created: 2026-05-01
Job Type: Full Time
Job Description:
Description Software Engineer (R&D / AI & Data Platforms)Leidos – Analysis Solutions Business AreaBuild the future of data, AI, and mission-critical software.Leidos is seeking a talented Software Engineer to help lead the development of next-generation software capabilities within our dynamic research and development environment. In this role, you’ll design and deliver innovative Knowledge Management solutions that power data-driven decision-making across critical national security missions.You’ll work at the intersection of data engineering, AI, and full-stack development, building scalable platforms that transform complex data into actionable insights.What You’ll DoDesign and develop Knowledge Management systems, including data pipelines, ontologies, and AI-enabled platformsBuild modern web applications (front-end and back-end) to support search, discovery, and analysisDevelop and maintain ETL pipelines and data lake architecturesIntegrate AI/ML capabilities, including Generative AI and LLM APIsCollaborate across teams to gather requirements and deliver scalable, mission-focused solutionsSupport data analysis, modeling, simulation, and visualization effortsEnsure software quality through testing, validation, and performance optimizationDeploy solutions in secure, cloud-based, and containerized environmentsWhat You BringExperience in software development and system design, with a strong foundation in computer science principlesProficiency in one or more programming languages such as Python, Java, C++, R, or JavaScript/TypeScriptExperience building applications using React or Angular, and back-end frameworks such as FastAPIFamiliarity with SQL and NoSQL databasesWorking knowledge of cloud platforms (preferably AWS) and containerization technologies (e.g., Docker)Experience with data pipelines, ETL processes, and data management systemsExposure to Generative AI / LLM APIs (e.g., OpenAI, Anthropic, Bedrock)Understanding of software testing frameworks (e.g., pytest, Playwright, Jest)Ability to work in Linux/Unix and Windows environmentsStrong communication skills and experience collaborating with technical and non-technical stakeholdersBasic QualificationsBachelor’s degree in computer science, Information Systems, Systems Engineering, or a related fieldMinimum of 1+ years of relevant experienceInterest in supporting Intelligence Community and DoD missionsU.S. Citizenship requiredPreferred QualificationsAdvanced degree (MS) in a relevant technical fieldExperience with AI/ML, LLMs, and AWS BedrockFamiliarity with DTRA R&D or Combatant Command environmentsExperience integrating COTS/GOTS tools, including 3D modeling, simulation, or visualization platformsClearance RequirementsMust be eligible to obtain a TS/SCI with PolygraphActive TS/SCI or Top Secret clearance with current SSBI strongly preferredWhat Sets You ApartDetail-oriented with strong problem-solving skillsComfortable working in fast-paced, ambiguous environmentsAble to independently research and implement innovative solutionsEffective collaborator who thrives both independently and on teamsStrong technical writing and presentation skillsWhy Leidos?At Leidos, your work directly supports critical national security missions. You’ll join a collaborative, forward-thinking team where innovation is encouraged and your contributions make a real impact.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 23, 2026For 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 $57,850.00 - $104,575.00The 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.About LeidosLeidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit .Pay and BenefitsPay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at /careers/pay-benefits.Securing Your DataBeware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at [email protected] you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.Commitment to Non-DiscriminationAll qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.