Senior Site Reliability Engineer (SRE) – Infrastructure & Systems

Location: Tallinn, with hybrid work (3 office days and 2 work-from-home days) and work-from-anywhere options.

Company

Webshare is an enterprise-grade proxy platform providing self-service access to more than 80 million global IPs across 195 countries through developer-friendly APIs.

What you will do

• Own and evolve production infrastructure across hundreds of servers and approximately 50 services.
• Lead the migration from Docker Swarm to Kubernetes in on-premises and bare-metal environments.
• Maintain high availability and improve observability in collaboration with backend engineers.
• Establish Infrastructure as Code practices and improve CI/CD pipeline reliability.
• Participate in on-call rotations, lead infrastructure incident resolution, run post-mortems, and drive systematic remediation.
• Build platform tooling that improves developer experience and reduces infrastructure toil.

Requirements

• Experience building and operating highly available infrastructure at production scale, including hundreds of servers and dozens of services.
• Hands-on Kubernetes experience in self-hosted or bare-metal environments.
• Strong Infrastructure as Code, scripting, and development skills.
• Experience leading at least one major infrastructure migration from planning through stabilization.
• Familiarity with Python and/or Go, proxy and networking-heavy infrastructure, and edge or split compute architectures.
• Experience working in a small team where developers share infrastructure responsibility.

Nice to have

• Backend experience with Python or edge-service experience with Go.
• Exposure to proxy infrastructure, edge clusters, or split compute/edge architectures.

Culture & Benefits

• Hybrid work with 3 office days and 2 work-from-home days, plus work-from-anywhere options.
• Internal and external learning resources, guilds, communities, and knowledge sharing across the Tesonet network.
• Yearly workation, internal and community events, and a team-building budget.
• Private health insurance, extra days off, and family-related time off.
• Access to office perks, the latest tools and gadgets, a 24/7 gym, physical well-being specialists, and psychologist or psychotherapist sessions.