Senior Software Developer Security Clearance

Position: Senior Software Developer with Security Clearance
Responsibilities This opening is in support of a proposal effort (Anticipated Start: August 2026) and is contingent upon contract award Overview:
We are building a talent pipeline in support of an upcoming Defense Threat Reduction Agency (DTRA) contract proposal, with anticipated work beginning in August 2026. This position will support mission-critical efforts related to cyber capabilities and advanced software development supporting national security missions. We are currently gathering interest and pre-qualifying candidates for a Senior Software Developer position:
In this role you will lead the the design, development, and implementation of robust software solutions supporting mission-critical cyber capabilities. You will also provide technical expertise in full-stack development, system architecture, and cross-platform application development in secure environments. Work will be performed on-site at Noblis HQ in Reston, VA, pending award. All candidates must possess a Top Secret clearance with SCI eligibility.

Next Steps These are pipeline positions only at this stage. If you are interested in being considered once the contract is awarded, please submit your resume. Qualified candidates will be contacted for preliminary screening during the proposal phase, with interviews anticipated closer to the award timeline.

Required Qualifications
* Bachelor's Degree in a relevant field and 8+ years of professional software development experience
* Expert-level proficiency in Python and C programming languages
* Extensive experience developing applications for both Linux and Windows platforms
* Strong experience with Postgre

SQL database design, development, and optimization
* Deep understanding of software architecture and design patterns
* Experience with system-level programming and low-level optimization
* Strong debugging and troubleshooting skills across multiple platforms
* US Citizen and Current Top Secret clearance with SCI eligibility Desired Qualifications
* Strong background directly aligned with the technical or analytical specialty area
* Experience supporting DoD, interagency, or national security missions is highly desirable
* Understanding of security best practices for your role in classified environments
* Strong analytical, communication, and writing skills
* Experience with version control systems (Git) and Agile methodologies
* Proven ability to lead technical initiatives
* Experience developing software for cyber operations or security applications
* Experience with CI/CD pipelines and Dev Ops practices
* Proficiency with containerization technologies (Docker, Kubernetes)
* Knowledge of RESTful API integration and microservices architecture Overview Overview Noblis and our wholly owned subsidiaries, Noblis ESI and Noblis MSD, take on some of the nation's toughest challenges, delivering advanced solutions to our customers' most critical missions. We bring together leading scientific, engineering, and management expertise in a culture grounded in objectivity and collaboration, ensuring our work creates lasting impact across federal missions.

We work with a broad range of government agencies in the defense, intelligence, and federal civilian sectors. Learn more and find opportunities lis.org Why Work at Noblis At Noblis, we share a passion for excellence and innovation, and we create an environment where people can do meaningful work while maintaining the balance that keeps them energized and fulfilled. We seek out individuals with a natural curiosity and desire to collaborate and learn.

We believe our people are our greatest strength, and we consistently seek exceptionally skilled, mission-driven professionals who care deeply about doing work that enriches lives and makes our nation safer. Noblis has earned numerous workplace awards for our culture, our commitment to employee well-being, and our dedication to meaningful, impactful work. We also maintain a drug-free workplace. Remote/hybrid status is subject to change based on Noblis and/or government requirements.

Commitment to Non-Discrimination All qualified applicants will receive consideration for employment without regard to race, color, ethnicity, sex, age, national origin, religion, physical or mental disability, pregnancy/childbirth and related medical conditions, veteran or military status, or any other characteristics protected by applicable federal, state, or local law. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact us .

EEO is the Law | E-Verify | Right to Work Total Rewards At Noblis we recognize and reward your contributions, provide you with growth opportunities, and support your total well-being. Our offerings include health, life, disability, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, and work-life…