Senior .NET Developer

<p><strong><span>About Us</span> </strong>🚀<br/></p><p>We are seeking a talented and experienced <strong>.NET Developer</strong> to join our growing team in Budapest. You will play a crucial role in shaping the backend architecture of our partner’s next-generation environmental monitoring platform. This is an exciting opportunity to contribute to a significant project, work with cutting-edge technologies, and have a real impact on our partner’s product's future.<br/></p> <h3>Requirements</h3> <p><strong><span>Key Responsibilities 💻</span></strong></p><ul><li><p>Participate in the replacement and continuous modernization of legacy systems using a cutting-edge tech stack;</p></li><li><p>Design, develop, and maintain scalable back-end solutions with .NET 8/9 and <a href="http://ASP.NET" rel="noopener" target="_blank">ASP.NET</a> Core;</p></li><li><p>Work with MS SQL and Entity Framework Core to implement efficient and optimized data access strategies;</p></li><li><p>Occasionally use SqlKata, Dapper, or other ORM/micro-ORM technologies;</p></li><li><p>Collaborate with the team in code reviews, knowledge sharing, and mentoring junior developers;</p></li><li><p>Ensure code quality through unit and integration testing (test coverage is improving but still maturing);</p></li><li><p>Utilize Docker-based environments locally and work in cloud-first architecture (Azure);</p></li><li><p>Participate in CI/CD pipeline maintenance using GitLab (cloud-based), as part of the development team's responsibilities;</p></li><li><p>Rarely, but potentially work with legacy UI technologies like Windows Forms or WPF;</p></li><li><p>Keep up-to-date with the latest .NET ecosystem updates — the tech stack is refreshed yearly.</p></li></ul><p></p><p><strong><span>What will you need</span></strong><span> 💪</span></p><ul><li><p>4+ years of experience as a Back-End Developer working with .NET technologies (preferably medior-senior level);</p></li><li><p>Deep knowledge of .NET 8/9, ASP.NET Core, and Entity Framework Core;</p></li><li><p>Strong experience with relational databases, particularly MS SQL;</p></li><li><p>Familiarity with SqlKata, Dapper, or other data access frameworks is a plus;</p></li><li><p>Knowledge of containerization (Docker) and orchestration tools (Kubernetes) is highly advantageous, even if not used in production by developers;</p></li><li><p>Experience with Azure cloud services is a plus;</p></li><li><p>Comfortable with working in and contributing to CI/CD pipelines (GitLab);</p></li><li><p><strong><em>Hybrid work model requiring 2-3 days of on-site presence in our Budapest office;</em></strong></p></li><li><p>Excellent verbal and written communication skills in <strong>English</strong>;</p></li></ul><p></p><p><strong><span>Why should you join 🤸</span></strong></p><p>🥷 BlackBelt team - You can join a cool and professional team, where everyone has a BlackBelt in technology;<br/>🧠 Development - We are supporting your growth with trainings and certifications;<br/>👣 Diversity - You can switch between projects and Delivery Units;<br/>😮 WOW - We are supporting our colleague's health and well-being with WOW (Wellbeing Office Way) program;<br/>🛋️ Flexibility - If you enjoy home office, then you can still enjoy your couch after Covid;<br/>🧡 Support - We are a caring organisation, if you face difficulties you can always count on us.<br/></p>