Senior Site Reliability Engineer
New
WarsawFull-TimeSenior
Salary26,000 - 34,000 PLN per month
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Job Details
- Required Skills
- PythonKafkaKubernetesGoCI/CDAnsible
Requirements
- Proven experience building and operating highly available infrastructure at comparable scale (hundreds of servers, dozens of services).
- Hands-on experience with Kubernetes in self-hosted or bare-metal environments.
- Confident working with Infrastructure as Code.
- Experience owning end-to-end CI/CD pipelines (e.g., GitLab CI).
- Direct experience being on-call in a production environment.
- Strong scripting and development skills.
- Proactive mindset, capable of identifying problems independently.
- Experience leading a major infrastructure migration (planned, executed, and stabilized).
- Familiarity with Python and/or Go.
- Exposure to proxy and networking-heavy infrastructure.
- Previous experience working in a small team environment with shared infrastructure responsibility.
Responsibilities
- Own and evolve Webshare's production infrastructure, leading the migration from Docker Swarm to Kubernetes.
- Maintain high availability across hundreds of servers and approximately 50 services.
- Drive observability in cooperation with the development team.
- Establish and enforce IaC practices, CI/CD pipeline reliability, and change management processes.
- Participate in on-call rotation alongside backend developers.
- Respond to and lead incident resolution, perform post-mortems, and drive systematic remediation.
- Contribute platform tooling that improves developer experience and reduces infrastructure toil.
- Keep backend engineers informed and capable to promote shared infrastructure ownership.
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