Senior Site Reliability Engineer

We’re a team of 500+ professionals who develop cutting-edge proxy and web data scraping solutions for thousands of the world’s best known businesses, including Fortune 500 companies. What’s in store for you: You’ll be solving complex challenges and maintaining our own infrastructure. In this role, you’ll: - 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. Your skills & experience: - 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. Nice to have: - 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. Salary & Benefits: - Gross salary: From 32 000 PLN/month gross + quarterly KPI-based performance bonus. 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. Originally posted on Himalayas