(Senior) Infrastructure & Security Engineer

Responsibilities

• Turn recurring operational toil into self-service systems that engineers actually adopt, from preview environments to internal access
• Help Duna run AI agents in engineering safely, with the sandboxes, guardrails and human checkpoints that make it possible
• Take calm ownership of incidents, and make sure the system gets better afterwards, not just the moment

WHAT WE'RE LOOKING FOR

Deep, hands-on experience with AWS (or comparable), Kubernetes, infrastructure as code, CI/CD and observability

Real security engineering skills: you turn least privilege and auditability requirements into working systems

Comfort with the enterprise IT side of a startup, from certifications and customer security reviews to identity and device management

High agency in ambiguity, turning a vague problem into a shipped plan

Pragmatic judgement about when to harden, when to simplify and when to leave something alone

Curiosity about what AI changes in how we build and run software

Our platform runs on AWS and Kubernetes with Terraform, Postgres and RabbitMQ, alongside a Node.js and TypeScript product stack built on event sourcing. You will not have used all of it before. We care more about the depth you bring and how you pick up the rest.

A final note before you apply: please read through our website in detail. You'll find the fundamentals there: what we believe in, how we work, and why we're building this company.

We're a remote-first, fast-moving team of builders looking for exceptional people who love to create, build, and ship. Beyond passion and grit, we highly value curiosity, authenticity and kindness.

If this sounds like you, we'd love to hear from you!

PS. We are looking to hire passionate people from a variety of backgrounds. So even if you don't check all the boxes, we welcome your application!