Senior Site Reliability Engineer

Simple is looking for a Senior SRE to join our Platform team responsible for the AWS infrastructure, the Kubernetes platform and the internal tooling that the rest of engineering relies on.

Push the pace of innovation and build a future of a healthier world with us!

About the role:

This is an operations-led position. You will be working day to day on AWS, our infrastructure-as-code, our CI/CD setup, observability, and the on-call rotation.

A meaningful part of the work is automation: when we find ourselves doing the same thing twice, we usually invest in tooling rather than writing another runbook. Most of that tooling is written in Go.

To give a sense of the environment: infrastructure is defined with Terraform and Terramate, with Atlantis running plan and apply on pull requests. Workloads run on EKS with Karpenter, Cilium and Istio, deployed through ArgoCD. Observability is built on Grafana, Loki, Tempo, and Prometheus compatible metrics.

We’re looking for:

• The most important quality for this role is how you handle problems that are not yet understood.

• Production incidents rarely present cleanly: logs can be incomplete, metrics can mislead, and the first plausible theory is often wrong.

• The right candidate stays focused under that kind of pressure, works through ambiguity in a structured way, and arrives at a real root cause rather than a convenient one.

• Strong investigation, debugging, and problem-solving instincts are essential.

• We also expect candidates to learn quickly. The stack and the company both move, and you will regularly be the first person on the team to take on something new.

• Several years of hands-on experience operating production systems on AWS and Kubernetes, including genuine on-call ownership.

• A solid working knowledge of AWS fundamentals, including VPC, IAM, EKS, and RDS.

• Practical experience with Terraform and a GitOps-style delivery workflow (ArgoCD, Atlantis, Flux, or similar).

• Comfort writing code, with some prior experience in Go or a willingness to pick it up (writing small services and tools is a regular part of the work).

• Strong written and spoken English, and the communication skills to drive design discussions across engineering, product and security.

• We're flexible on some locations as long as your working hours overlap with European time zones

Perks and Benefits:

• Open-minded teams, a welcoming and inclusive company culture, plus the opportunity to make a real difference with a game-changing health tech product.

• A competitive salary package based on your unique expertise, skillset, and impact on the product plus stock options.

• In-office, remote and hybrid work opportunities.

• The equipment whatever you need to be happy and productive.

• A premium SIMPLE subscription.

• 21 days annual leave, plus bank holidays

• Flexible hours. We focus on your results, not how long you spend at your desk.