Senior .NET Software Engineer

Full-timeHybrid
Vilnius · Kaunasvia Surfshark CareersPosted Sep 11, 2026
Match with my CV

Technical skills

C#API developmentDevOps

About this role

We’re building HeyPolo - a privacy-first smart location-sharing app that helps families and friends stay connected, and safe. HeyPolo is designed for meaningful connection without intrusive tracking: real-time updates, consent-based sharing, and intuitive safety features that put users in charge of their data and peace of mind.

If you’re excited by real user impact, privacy-centered innovation, and building something from scratch with a small, autonomous team, read ahead.

If you want to:

  • Architect, build, and own the server-side logic of the new application
  • Lead the design and implementation of backend features and APIs using .NET/C#
  • Focus on writing clear, tested, documented code that delivers real business value
  • Ensure responsive and reliable service through scalable architecture.

And you can check off:

  • Proven experience as a Senior Backend Developer, specifically with .NET/C#
  • Strong understanding of OOP, design patterns, and modern .NET frameworks
  • Experience with RESTful API design and implementation
  • Experience in building highly scalable systems
  • Proficiency with database design and management
  • Background in microservices architecture
  • Familiarity with DevOps practices
  • Excellent problem-solving skills and attention to detail
  • Strong communication skills and a team-oriented mindset.

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 and a physical coach 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
  • 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
  • More days off: additional vacation days depending on your tenure
  • Premium Surfshark accounts: for you, your family, and friends
  • Gross salary: 5000 - 7000 Eur/month. Although it may vary depending on your skills and experience.

Before you apply

  • 1Which parts of your CV prove experience with C#, API development, and DevOps?
  • 2Which recent work examples would make your application stronger for this role?
  • 3What details from the original source listing should you confirm before applying?

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