Join Surfshark’s VPN Engineering team as a Senior Back-end Engineer and help shape the orchestration layer of our next-generation networking platform. You’ll design and build control plane services in Go that securely manage thousands of workloads worldwide, driving APIs, rollouts, and health tracking at scale. Working alongside a senior team, you’ll tackle tough distributed systems and security challenges, making a direct impact on how our platform runs and evolves.If you want to: Design and implement the control plane services in Go that manage workloads across a large fleet; Build APIs for configuration distribution, rollout coordination, and health tracking; Integrate with identity systems (OIDC, mTLS, token services) for secure bootstrap and operations; Work closely with other engineers to ensure smooth rollout waves, canary deployments, and automated recovery; Contribute to observability: exposing service metrics, building dashboards, setting up alerts; Participate in code reviews, system design, and long-term architecture planning. And you can check off: Experience designing and operating distributed systems (control planes, schedulers, config management, etc.); Familiarity with authentication/authorization standards (OIDC, OAuth2, JWT, mTLS); Experience building APIs and working with manifest-driven or declarative configuration systems; Solid understanding of monitoring, metrics, and health-based rollouts; Strong understanding of Linux system internals, including namespaces, cgroups, networking stack, KVM, and kernel fundamentals; Hands-on experience debugging, tuning, and operating Linux-based production systems at scale. Bonus points if you:Have had exposure to Kubernetes-style reconciliation loops, service mesh, or large-scale rollout systems.Here's the deal: Growth and learning opportunities: time dedicated to learning, conferences, online learning platforms, and books for your professional development; Health and wellness: we want you to feel and be your best. That's why we offer various benefits, from online workouts with a physical coach and sports card to health insurance and regular mental health checks; Tools of your choice: choose the technical equipment and tools you need to do your best work; Community and celebrations: get ready for long-lasting traditions such as yearly workation, Friday get-togethers, various team buildings and company celebrations; Convenient commuting: traveling from point A to point B in a city like Warsaw is quite a journey! That’s why we compensate your public transport costs; Work-life balance: We encourage working in the office, with the possibility of up to two remote days per week. Plus, with our WFA policy, you can work from almost anywhere in the world; Premium Surfshark accounts: for you, your family, and friends!