Top Secret Software Developer (Full Stack) – Mission-Critical Platforms Join a high-performing engineering team building secure, high-impact applications that power data capture, analytics, searching, monitoring, alerting, and visualisation capabilities. You’ll contribute across the full SDLC, working to strong engineering and security standards in a collaborative, multidisciplinary environment. Location: Canberra (Onsite Only – No WFH) Contract Duration: Not specified (Estimated start March/April 2026 - Depending on the onboarding timeline/process ) Security Clearance Requirement: TSPV or TS-Positive Vetting (TS-PV) Closing Date: Not specified Essential Tasks: Design, build and unit-test new features across C#, FastAPI, React, and/or Python Troubleshoot defects, refactor legacy code, and improve performance/security Create and maintain documentation (technical docs, API specs, user guides) Contribute to GitLab/BitBucket workflows and CI/CD pipelines (branching, builds, deployments) Key Criteria: 5 years full-stack development experience in a government environment, deploying to high-security networks Strong understanding of SDLC, testing practices, and code review/peer mentoring Solid secure-coding knowledge (threat modelling, vulnerability mitigation) Proven capability aligned to SFIA Level 3–5 (PROG) Contract Duration: 12 months with 2 x 12-month extension options. Security Clearance: Due to the nature of this environment, candidates are required to have an Australian Citizen and TSPV/TSPA clearance to perform this role. This position is open to Australian citizens with a valid security clearance due to role requirements. We are committed to a non-discriminatory hiring process but, unfortunately, cannot provide visa sponsorship for overseas applicants. How to Apply Does this role sound perfect for you? If so, to register your interest in this role, please either contact Kate on ( or Click APPLY! Due to system limitations, we will only be able to contact candidates who closely match the requirements for this role. We appreciate your understanding and encourage you to apply if your experience aligns with the position. About Compas Compas Pty Ltd is a Canberra-based, wholly Australian-owned Recruitment and Services company that has been operating since 1987. We specialise in the provision of permanent, contract, and temporary recruitment services, as well as specialised consulting assignments. YOUR APPLICATION WILL BE TREATED WITH THE STRICTEST CONFIDENCE
