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# Cyber Software Engineer

- **Company:** Excelity
- **Location:** Herndon, VA, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Data Governance, Serialization, Django Web Framework, Elasticsearch, JSON, Python (Programming Language), PostgreSQL, MySQL, Node.Js, Scrum Methodology, Software Tools, Security Software, Software Engineering, System Testing, Workflow Management Systems, Extensible Markup Language (XML), Flask (Web Framework), State Machines, Fastapi, Celery, Api Design, Restful APIs, Devsecops
- **Published:** November 12, 2026
- **Apply:** https://www.careerbuilder.com/job-details/cyber-software-engineer-herndon-va--535a7bd9-12f5-4450-beb6-dd6071c4710d

## About the Role

Software Engineering, Operational Improvement, Technical Delivery, Operational Strategy, Software Engineering, Government, Team Player, Top Secret Clearance, Sensitive Compartmented Information (SCI), Test Harness, * 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

 * 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

Preferred Skills:

 * 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

## Description

At Excelity, we're passionate about delivering innovative technology solutions that help businesses thrive. Whether you're looking to streamline your operations, improve efficiency, or enhance customer engagement, our team of experienced professionals is here to help. So why wait? Visit excelity.io today to learn more about how we can help you achieve your goals and take your business to the next level.
Excelity is seeking a Cyber Software Engineer for a project responsible for building the next generation Mission Integration System for an exciting Government customer with a very critical mission. The candidate will work with the engineering team and customer to ensure successful development of high profile, complex, technical deliverables that are core to the continued success of our award-winning projects.
Required Clearance: TS/SCI w/ CI Poly, 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 candidate should be comfortable working with containers and automated testing frameworks. The candidate should have experience with structured software development methodologies and modern software tools and techniques.