About the Role

We are seeking an experienced Senior Site Reliability Engineer (SRE) to design, build, and operate next-generation software delivery and sustainment platforms.

This role is central to enabling the rapid, secure, and resilient delivery of complex software systems across cloud, on-premise, and hybrid environments. You will work across the full stack—from infrastructure and operating systems through to orchestration and application platforms—while acting as a technical leader and mentor within multidisciplinary engineering teams.

The role suits someone who enjoys deep technical ownership, complex systems, and operating in environments where reliability directly supports national capability.

The Successful Candidate

You will be a senior-level engineer with strong experience operating complex software systems at scale.

Required experience and skills include:

- Bachelor’s degree in Computer Science, Software Engineering, or equivalent practical experience
- Proven experience in a senior SRE, platform, or infrastructure engineering role
- Robust background designing and operating horizontally scaled cloud systems
- Experience working across the full software lifecycle: design, implementation, operation, and sustainment




- Ability to take end-to-end ownership of services, including technical leadership and coordination
- Strong problem-solving skills and ability to operate in high-stakes environments
- Eligibility to obtain and maintain an Australian Government Security Clearance
- Experience developing cloud-native services in C++, Rust, Python, or Go
- Experience with NixOS and the Nix programming language
- Strong understanding of systems programming concepts (concurrency, optimisation, performance)
- Strong networking fundamentals in cloud and hybrid environments
- Deep experience deploying and operating Kubernetes clusters
- Interest in progressing into technical leadership or engineering management roles

What’s on offer?

- Long term role working on cutting-edge, defence-grade technology
- ACT -based position within a highly skilled, mission-focused engineering team
- Competitive salary package (aligned to senior-level market rates)
- Long-term career growth across principal engineering or leadership pathways
- Opportunity to work on systems of national and strategic importance

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📌 Senior Site Reliability Engineer (New South Wales)
🏢 Whizdom
📍 New South Wales