Full Stack Software Developer, Hybrid Remote with Security Clearance

GTSC seeks Full Stack Software Developer for mid-August 2026 start. Commitment to start must be by 30 June in order to complete background checks required for this position. Location : This is a local remote position in the metropolitan Washington DC area. There will be occasion when you are asked to perform some work onsite or to meet with other team members. Mission Your role will be full stack development for a trunk-based development model, to commit frequent tested code, maintain short-lived branches, support feature flags, participate in code reviews, follow coding standards, avoid known security vulnerabilities, write automated tests, support Section 508, document APIs and architecture decisions, and participate in sprint reviews. ~~~ This position is on a new Task Order with client review of contingent hires ~~~ Education : Expertise matters. There is no degree requirement. Core Responsibilities • Deliver J5 application development stack. • Build APIs, UI, and backend services. • Support agile sprint delivery and DevSecOps integration. Required Expertise • Python + FastAPI • ReactJS frontend • PostgreSQL/database design • AWS integration (containers, APIs, services) Desired Expertise • Secure SDLC experience • Fed environment or compliance-driven dev Successful Applicants Your expertise and resume should demonstrate your background with Python, FastAPI, ReactJS, PostgreSQL, Docker, AWS, trunk-based development, peer review, automated testing, secure coding, Section 508, OpenAPI/Swagger, documentation, sprint delivery, and troubleshooting. Code samples or project examples if available. Background Investigation Requirements • Must be a U.S. Citizen. • Must be eligible to obtain and maintain a Public Trust clearance. • Must successfully complete required background investigation and security training. Benefits Benefits: • Medical • Dental • Vision • Flexible Spending Account • Health Savings Account • Life and AD&D • Short-Term Disability • Long-Term Disability • 401(k) • Tuition Assistance • Paid Time Off GTSC is proud to be an equal opportunity employer, committed to recruiting, hiring, and promoting qualified people of all backgrounds, regardless of sex; race; color; creed; national origin; religion; age; marital status; pregnancy; physical, mental or sensory disability; sexual orientation; gender identity or any other basis protected by federal, state or local law. Learn more about your EEO rights as an applicant. GTSC is committed to working with and providing reasonable accommodation to applicants with physical and mental disabilities. Employment in this position is contingent upon the successful completion of a background check. Depending on the nature of the job duties or requirements set forth by our government clients, additional screenings such as drug testing and/or credit checks may be required. These checks are conducted in accordance with all applicable federal, state, and local laws.