Mission Critical Systems Engineer
We are building a small but impactful team with a clear mission: to make systems across the Group more reliable, secure, understandable, and cost-effective.
You will partner with sister companies, working directly with their engineering teams to:
* Fix legacy systems and reduce technical debt
* Establish strong ticket hygiene and incident response processes
* Guide architecture and cost optimisation (many systems are more expensive than they should be)
* Lead migration from old-school data centers to cloud-native environments
This is not greenfield work. Think of it as rebuilding Sydney Harbour Bridge while traffic is still crossing it – high-stakes and rewarding.
Your Responsibilities
* Get hands-on with complex platforms: .NET, C#, Windows stack, databases, APIs, EDI, FTP, transactional systems
* Triage problems, prioritise fixes, and make pragmatic trade-offs
* Uplift teams by coaching best practices and setting technical standards
* Work across infrastructure, networking, and application layers – full-stack problem solving
* Rotate between firefighting at one company and consultative coaching at another
* Always put security and reliability first
About You
We're looking for someone who thrives on fixing hard problems in complex environments. You're calm under pressure, resilient with tricky personalities, and motivated by making systems better.
* You don't get judgy about messy code (some authors are still around)
* You can win trust and build rapport even in difficult situations
* You're commercially aware (you know money matters)
* You're effective under fire – calm, stylish, and Mr. Wolf-like
* You've got breadth and depth: hardware, software, networking, infrastructure, cloud migration, and large-scale transactional systems
* You've repaired legacy systems at scale – not just web apps
* You're a functioning adult who can work independently but knows when to collaborate
Why This Role Matters
* Work on systems handling 30+ million transactions per year
* Be part of a mission-critical team with guaranteed long-term impact
* Rotate between firefighting and consultative uplift work for variety
* Influence how entire companies design, secure, and run their systems
* Work with a mature team who value humility and curiousity