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Vilnius / Kaunas / Warsaw

Lead Backend Software Engineer (Go)

Join Surfshark’s VPN Engineering team as a Lead Back-end Engineer and take the lead on shaping our microVM-based platform. In this role, you’ll work at the intersection of Linux internals, Go services, and secure virtualization, driving core architecture decisions, tackling cutting-edge networking challenges, and owning the evolution of our platform. With a small team and big ownership, your impact will be direct and have a visible impact on the platform’s evolution.

If you want to:

  • Lead the design and implementation of immutable Linux-based microVM images;
  • Build, maintain, and optimize Go services running inside those images (networking agents, metrics pipelines, lifecycle daemons);
  • Own tooling for image build, signing, verification, and rollout automation;
  • Define standards for security, resource efficiency, and observability inside microVMs;
  • Mentor engineers, review code, and contribute to engineering best practices;
  • Collaborate cross-functionally with platform and SRE teams to ensure smooth deployments.

    • And you can check off:

  • Proven experience in backend development with Go;
  • Deep knowledge of Linux internals (network stack, namespaces, cgroups, nftables/iproute2);
  • Hands-on experience with KVM/QEMU or other virtualization/hypervisor technologies;
  • Proven track record of building and shipping production systems with performance and reliability requirements;
  • Familiarity with supply-chain security (image signing, SBOMs, artifact verification);
  • Experience leading small teams or projects, ability to mentor and set technical direction.

    • Bonus points if you:

  • Have experience with kernel modules, eBPF, or custom Linux distributions.

    • 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, a physical coach and a gym to regular mental health checks;
  • Tools of your choice: choose technical equipment and the tools you need to do your best;
  • 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 can be a pain. That’s why, depending on your unique circumstances, we compensate part of 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;
  • Gross salary: 3500 - 7500 Eur/month for the Lithuanian market. It may vary depending on your skills, experience, or location. 

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    How we hire

    Here at Surfshark, we don’t believe in the “one size fits all” process. We tailor it to ensure the best experience for our candidates and to match them with the right job position.
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