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September 1, 2026

Senior Site Reliability Engineer (Remote)

Senior • Remote

30,000 - 34,000 PLN/yr

Warsaw, Poland

What's in store for you

  • Solve complex challenges while maintaining infrastructure handling 60PB+ of monthly data traffic.

Your day-to-day

  • Own and evolve Webshare's production infrastructure, including leading the migration from Docker Swarm to Kubernetes or a hybrid Kubernetes + Ansible approach.
  • Maintain high availability across hundreds of servers and approximately 50 services.
  • Drive observability in cooperation with the development team.
  • Establish and enforce Infrastructure as Code practices, CI/CD pipeline reliability, and change-management processes.
  • Participate in the on-call rotation alongside backend developers.
  • Respond to and lead incident resolution, run post-mortems, and drive systematic remediation.
  • Contribute platform tooling that improves developer experience and reduces infrastructure toil.
  • Keep backend engineers informed and capable through shared infrastructure ownership.

Your skills & experiences

  • Built and operated highly available infrastructure at comparable scale: hundreds of servers, dozens of services, and real production load.
  • Hands-on Kubernetes experience in self-hosted or bare-metal environments.
  • Confidence with Infrastructure as Code.
  • End-to-end ownership of CI/CD pipelines, using GitLab CI or an equivalent tool.
  • Production-environment on-call experience.
  • Proactive approach to surfacing problems and keeping the team informed.
  • Scripting and development skills.

Nice to have requirements

  • Led at least one major infrastructure migration, including planning, execution, and stabilization.
  • Familiarity with Python and/or Go; the backend uses Python and edge services use Go.
  • Exposure to proxy and networking-heavy infrastructure.
  • Previous experience in a small team where developers shared infrastructure responsibility.
  • Familiarity with edge clusters or split compute/edge architectures.

Only selected candidates will be contacted for further steps.

Please share your LinkedIn profile with your application.

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