Clearance Required: US Citizenship; Ability to obtain Top Secret clearance
Leidos has an exciting opportunity for an experienced Data Engineer/Architect to support the design of a new data foundation. This foundation will support generative AI applications, including retrieval-augmented generation (RAG), and enable analysis of diverse data sets. Looking for an engineer with strong architectural and hands-on development skills who can define the foundation (tools, schemas, and ontologies) and document that definition so that software engineers can implement, and management can understand the capabilities that the foundation can support.
This role is open to candidates across a range of experience levels. The scope of the position and corresponding compensation will be aligned with the selected candidate's background and expertise.
Primary Responsibilities
Design and implementation of big data systems, ETL pipelines and Data Lakes / Lakehouse / Meshes.
Design and implementation of schema and ontologies.
Design and implementation of data foundation to support generative AI applications, including retrieval-augmented generation (RAG), and business analytics.
Design and implementation of row/cell level data access control.
Hands-on software development using Python and/or JavaScript to support data integration and application functionality.
Documentation of data definitions and designs.
Basic Qualifications
Bachelor's degree with 8+ or 12+ years of experience in a Science, Engineering, or Technology field, or a Master's degree with 6+ or 10+ years of experience in a Science, Engineering, or Technology field. Additional experience may be considered in lieu of a degree.
U.S. citizenship; ability to obtain a Top Secret security clearance in DISS.
5+ years of experience designing and developing systems to analyze structured and unstructured large data sets from disparate sources, including Extract, Transform, Load (ETL) processes.
5+ years of experience with principles associated with AI applications, including retrieval-augmented generation (RAG), prompt and context engineering, and AI workflow orchestration and design.
Experience with AI agent configuration, management, and integration into automated workflows.
Ability to develop tools, algorithms, and queries to improve business performance.
Ability to develop new technical solutions, including hands-on Python or JavaScript development and Python-based services, to achieve project goals.
Ability to develop intelligent systems that analyze data, learn from patterns, predict outcomes, and make informed decisions autonomously.
Strong verbal and written communication skills, with the ability to communicate data engineering and architectural concepts to non-technical audiences.
Experience working directly with product owners, including previous experience in product ownership or product architecture.
Experience with generative AI applications, including RAG, embeddings, and vector search.
Experience with operational support to data foundation and devOps.
Familiar with Medallion style architecture.
Current Secret clearance in DISS.
Please be advised that during the interview, you will be required to keep your camera on, and your interviewer will be taking your picture for identification purposes if an offer letter is extended to you.
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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: November 4, 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.
About Leidos
Leidos 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 www.Leidos.com.
Pay and Benefits
Pay 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 www.leidos.com/careers/pay-benefits.
Securing Your Data
Beware 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 Leidos.com 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 LeidosCareersFraud@leidos.com.
If 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-Discrimination
All 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.
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About the role
This is a Senior Level role in the Technology field (Data, analytics and AI) at Leidos. Senior roles usually expect substantial experience, ownership of results and often the ability to guide others.
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Company description (from The Muse): Leidos is a Fortune 500® innovation company rapidly addressing the world’s most vexing challenges in national security and health.
size: Large Size; industries: Information Technology; locations on The Muse: Reston, VA.
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What is the Data Engineer/Architect job at Leidos?
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