• Own and evolve Webshare’s production infrastructure – lead the migration from Docker Swarm to Kubernetes (or hybrid K8s + Ansible).

• Maintain high availability across hundreds of servers and ~50 services.

• Drive observability in cooperation with development team.

• Establish and enforce IaC 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 — no silos, shared infrastructure ownership.

,

• Have built and operated highly available infrastructure at comparable scale — hundreds of servers, dozens of services, real production load.

• Hands-on K8s in self-hosted / bare-metal environments.

• Confident with Infrastructure as Code.

• Have owned CI/CD pipelines end-to-end (GitLab CI or equivalent).

• Have been on call in a production environment.

• Proactive— surfaces problems before being asked, keeps the team informed without prompting.

• Scripting and development skills.

,

• Led at least one major infrastructure migration – planned, executed, and stabilised it.

• Python and/or Go familiarity – backend is Python, edge services are Go.

• Exposure to proxy, networking-heavy infrastructure.

• Previous experience in a small team where developers shared infrastructure responsibility.

• Familiarity with edge clusters or split compute/edge architectures.

,

• Gross salary: 26 000 PLN/month  – 34 000 PLN/gross. Keep in mind that we are open to discussing a different salary based on your skills and experience.

• Growth & Learning: 40+ internal learning options, external conferences, mentorship, and year-round knowledge-sharing.

• Health & Well-being: Private health insurance, gym allowance and a wellness app.

• Celebration & Community: Team events, an overseas workation and plenty of ways to mark milestones together.