SolStak is looking for a Software Developer to design, build and maintain secure applicationsfor sovereign Defence and government mission systems. You will deliver full-stack solutions inaccredited environments with a strong focus on quality, security and operational reliability.
What you’ll do
- Develop web, API and integration services for mission-critical applications
- Write clean, tested code and participate in peer review and CI/CD pipelines
- Integrate applications with identity, data and platform services
- Follow secure coding practices aligned with government accreditation requirements
- Collaborate with architects, DevOps and project teams on end-to-end delivery
What we’re looking for
- Strong software development experience with modern languages and frameworks
- Proficiency with Git, GitLab CI/CD and automated testing practices
- Understanding of API design, microservices and secure application architecture
- Experience delivering software in enterprise or government contexts
- Minimum two years of proven experience in a relevant role
- Own GitLab instance and home lab environment (highly desirable)
- Existing Australian Government security clearance (highly desirable)
- Industry certifications (highly desirable)
What it feels like to work here
You’ll ship code that runs in production on programmes where reliability and securityare non-negotiable. SolStak developers get meaningful ownership, direct access to architectsand clients, and a team that values craftsmanship over churn. Your home lab and side projectsaren’t a distraction here — they’re a sign you care about the craft.
Why engineers join
- Build sovereign software used by Defence and government clients
- Modern GitLab-driven development with CI/CD at the core
- Work across the stack — from APIs and front ends to integrations and platform services
- Collaborate with cloud, data, identity and cyber specialists
- Hybrid flexibility across VIC, NSW and ACT
What technologies you’re exposed to
Software developers at SolStak build applications that sit across the full sovereign ICTstack — integrating with data platforms, cloud services, virtualisation layers and securitytooling.
- API integration with Cloudera, Spark and enterprise data services
- Event-driven pipelines, messaging and analytics backends
- Cloud-native deployment on AWS, Azure, GCP and sovereign providers
- Containerised services on OpenShift and Kubernetes
- GitLab, Docker, OpenShift and infrastructure-as-code workflows
- Python, TypeScript, Java and modern web application frameworks
Security products
- Secure SDLC, OAuth/OIDC integration and application hardening
- SIEM logging, vulnerability scanning and IRAP-aligned development practices
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Software Developer employer: Sol Stak Pty
At SolStak, we pride ourselves on being an exceptional employer, offering AI Data Scientists the chance to work on impactful sovereign AI solutions that directly support Defence and government operations. Our collaborative culture fosters intellectual rigour and practical delivery, while providing hybrid flexibility across VIC, NSW, and ACT, ensuring a balanced work-life environment. With opportunities for professional growth and exposure to cutting-edge technologies, you'll be part of a mission-driven team dedicated to responsible AI practices in secure settings.
