Senior .NET Software Engineer at Surfshark (Vilnius, Lithuania)Senior .NET Software Engineer

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.