Antithesis
Ops
ITEngineer
Neural analysis suggests this role is
optimal for Mid+ candidates.
“IT Engineer at Antithesis. Skills: IT infrastructure, Endpoint management, Network support. Manage technology using tools. Support technology environments”
Industry & Context.
Troubleshoots methodically; Takes ownership of problems
What They're Looking For.
Must Have
Hands-on experience in IT systems administration, working knowledge of macOS and Linux, Experience with identity and access management platforms, Solid networking fundamentals
Nice to Have
Experience working in a dynamic start-up environment, Global experience supporting team members
What You'll Do.
Manage technology using tools
Support technology environments
Maintain network infrastructure
Support wireless systems
Serve as Tier 1 support
Serve as Tier 2 support
Track problems through Linear
Resolve problems through Linear
Own security compliance
Maintain records in database
Ensure compliance frameworks
Build documentation on IT processes
Maintain documentation on IT processes
Build documentation on configurations
Maintain documentation on configurations
Build documentation on architecture
Maintain documentation on architecture
How You'll Work.
Team & Collaboration
Collaborating with engineering teams; Collaborating with other teams
Communication Scope
Clear communicator; Documents well
Full Job Description
ABOUT ANTITHESIS We've been quietly reinventing how the world thinks about software reliability, and we're just getting started! At Antithesis, we start at the foundations – we run entire software systems inside a deterministic simulation and break them in every way imaginable. Every issue then comes with a perfect reproduction, so you can identify root causes fast instead of spending days trying to recreate what went wrong. The rise of AI-generated code has made this work more urgent than ever. Agents can write code faster than any human, but speed doesn't matter much when the output is buggy, stuck in review, or slipping through undetected. The verification bottleneck is real, it's growing, and solving it is one of the most consequential problems in software right now. That's what you'd be working on. We're well-funded and deeply technical, the kind of place where the hardest problems get the most attention and the best ideas win regardless of who has them. If you want to do work that actually moves the needle on how reliable software can be, keep reading. ABOUT THIS ROLE Antithesis is looking for an IT Engineer to drive and evolve our IT infrastructure as we scale in the UK. You'll be the person our engineers rely on to keep their environments running, their access managed, and their issues resolved quickly. This role sits at the intersection of endpoint management, network infrastructure, and internal tooling, and you'll have real ownership over the systems and processes you build. Day to day, you'll manage our Mac and Linux fleet using Mosyle and Apple Business Manager, support our network and VPN infrastructure, and serve as our primary escalation point for endpoint and application issues. You'll also help build the documentation and operational foundations that let us move fast without losing institutional knowledge. This is a hands-on role for someone who likes solving technical problems, working across teams, and building things that last. If you thrive in
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