Senior Site Reliability Engineer

Poland·WarsawRemoteFull Timesenior

EngineeringDevops Engineer

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Quick Summary

Overview

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.

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EngineeringDevops 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 with 60PB+ monthly data traffic. Here are its scale and maturity in numbers:

- 6PB+ Ceph storage

- 60PB+ monthly data traffic through our systems

- 300k+ service requests/sec processed

- 500k+ Kafka messages/sec streamed

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.