NULLWARDEN
Careers

Build the systems other people depend on.

We hire people who have already done the work. If you have spent years making software harder to break, we would like to talk to you.

Open roles

Current openings

All roles are Auckland-based or remote within New Zealand. We will sponsor a visa for the right candidate.

Senior Kernel & Systems Researcher
Own our kernel and hypervisor research programme end to end. You will write fuzzers, find bugs in code most people assume is unbreakable, and publish what you find. Deep C, kernel internals, and comfort reading assembly are expected.
Auckland or remote
Firmware & Embedded Security Engineer
Reverse engineer industrial, medical and automotive devices. Boot chain analysis, update mechanism auditing, and finding the extraction paths that make physical access permanent. Full lab and hardware budget provided.
Auckland
Detection Engineer
Turn our findings and our clients' findings into detections that actually fire. You will build and tune rules across endpoint, network and cloud telemetry, and measure their false positive rate honestly.
Remote NZ
Application Security Researcher
Break web, API, mobile and cloud applications for clients in regulated industries. You will read source code when it exists and reverse it when it does not. Business logic and authorisation flaws are the interesting part.
Auckland or remote

Nothing that fits?

We are always interested in people who have done serious offensive work, even if the roles above are full. Send us something you wrote, broke or published. That tells us more than a CV.

careers@nullwarden.com
What we offer

Research time

Twenty percent of your week is protected for your own research, with hardware and conference budget on top. We want the research to exist, not just the engagement revenue.

Time back

Four-day weeks, no on-call rota for routine work, and incident response handled by a rotating on-call group rather than one person forever.

Real ownership

Equity for every full-time role from day one. Clearances sponsored where the work needs them.

How we hire
1
Conversation
Thirty minutes with a researcher. Tell us about something you found and what made it hard.
2
Practical
A paid exercise based on real problems from our research work. Not a whiteboard puzzle and not unpaid take-home work.
3
Deep dive
A technical session with the team you would join. Bring the thing you are proudest of.
4
Offer
Written, transparent, with the salary band stated up front rather than negotiated against you.

Think you belong here?

Send us something you built, broke or published. We read all of it, and we reply either way.