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Senior Principal/Staff Cyber Software Engineer (TS/SCI)

Herndon, VA, USFull-timePosted Jan 21, 2026

Job description

MUST HAVE AN ACTIVE TS/SCI WITH ABILITY TO OBTAIN TO PASS A POLY CLEARANCE*

Software Engineer IV

Our client's Space & Intelligence Sector is looking for a Software Engineer to join their diverse team in their Herndon, VA, office. The candidate should have experience with structured software development methodologies and modern software tools and techniques.

The selected candidate will work within a cross-functional Scrum team, and will perform software engineering and development activities, associated with supporting, maintaining, and enhancing software using an Agile DevSecOps model. The engineer should be comfortable working with containers and automated testing frameworks.

For Senior Principal level: A Bachelor's degree with 9+ years of relevant experience; OR a Master's degree with 7+ years of relevant experience; OR a PhD with 4+ years of relevant experience an additional 4 years of experience may be considered in lieu of a degree requirement

For Staff level: A Bachelor's degree with 14+ years of relevant experience; OR a Master's degree with 12+ years of relevant experience; OR a PhD with 9+ years of relevant experience an additional 4 years of experience may be considered in lieu of a degree requirement

Required

Strong Python development experience, especially with workflow orchestration Elasticsearch/Open Search, PostgreSQL, MySQL experience Experience with state machines, task queues (e.g., Celery), or workflow engines. Understanding of RESTful APIs and data serialization (JSON, XML). TS/SCI with ability to pass a poly

MUST HAVE AN ACTIVE TS/SCI CLEARANCE*

Desired:

Knowledge of API design best practices and data governance. Experience using Node.js. Familiarity with frameworks like Django, FastAPI, or Flask. Security+ or equivalent certification and willingness to serve as a privileged user supporting deployed systems testing P/W

Shld, Inc. is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.

Description copied from Shld's careers page. Read the full posting before you apply.

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