<span><p><strong>About us: </strong></p><p><br></p><p>Talent has no borders. Proxify's mission is to connect top developers around the world with the opportunities they deserve. So, it doesn't matter where you are; we are here to help you fast-track your independent career in the right direction.</p><p><br></p><p>Since our launch, Proxify's developers have successfully worked with 1200+ happy clients to build their products and growth features. 5000+ talented developers trust Proxify and its network to fulfill their dreams and objectives.</p><p><br></p><p>Proxify is shaped by a global network of supportive, talented developers interested in remote full-time jobs. Our Glassdoor (4.5/5) and Trustpilot (4.8/5) ratings reflect the trust developers place in us and our commitment to our members' success.</p><p><br></p><p><strong>The Role:</strong></p><p><br></p><p>We are looking for a Senior .NET Developer to join one of our high-growth client teams as a core backend architect. In this role, you will lead the design and implementation of enterprise-level applications, moving beyond simple CRUD operations to build complex, high-throughput distributed systems.</p><p><br></p><p>You will be the technical engine behind the client’s product evolution, ensuring that their backend infrastructure is not only performant and secure but also prepared for the latest cloud-native advancements. You are a perfect candidate if you are growth-oriented, you love what you do, and you enjoy working on new ideas to develop exciting products.</p><p><br></p><p><strong>What we are looking for:</strong></p><p><br></p><ul><li>6+ years of professional experience in backend development, with deep expertise in C# and the .NET ecosystem (.NET 6/8/9).</li><li>Advanced proficiency in building scalable Web APIs, including custom middleware, filter pipelines, and dependency injection.</li><li>Mastery of Entity Framework Core, including performance tuning, migrations, and handling complex relational schemas in SQL Server.</li><li>Solid experience with Azure services (or AWS equivalents), particularly in serverless functions, message queues (Service Bus), and containerization.</li><li>Proven experience with Microservices, Domain-Driven Design (DDD), and event-driven architectures.</li><li>A strong "test-first" mindset with experience in xUnit/nUnit and Moq for comprehensive unit and integration testing.</li><li>Strong verbal and written English; comfortable leading technical discussions with cross-functional stakeholders.</li></ul><p><br></p><p><strong>Nice-to-Have:</strong></p><p><br></p><ul><li>Experience with Dapr or other microservices runtimes.</li><li>Familiarity with NoSQL databases such as MongoDB or CosmosDB.</li><li>Knowledge of Frontend frameworks (React or Angular) to facilitate better API contracts.</li><li>Relevant Microsoft certifications (e.g., Azure Solutions Architect).</li></ul><p><br></p><p><strong>Responsibilities:</strong></p><p><br></p><ul><li>Architect and implement robust, maintainable, and testable backend services from scratch.</li><li>Identify and resolve performance bottlenecks, optimizing memory usage and query execution times.</li><li>Lead peer code reviews and establish coding standards to ensure long-term system health.</li><li>Partner with Product Owners and Frontend Engineers to define technical requirements and API specifications.</li><li>Work with DevOps to manage deployment pipelines and ensure smooth, zero-downtime releases.</li></ul><p><br></p><p><strong>What we offer:</strong></p><p><br></p><p><strong>Get paid, not played</strong></p><p>No more unreliable clients. Enjoy on-time monthly payments with flexible withdrawal options.</p><p><br></p><p><strong>Predictable project hours</strong></p><p>Enjoy a harmonious work-life balance with consistent 8-hour working days with clients.</p><p><br></p><p><strong>Flex days, so you can recharge</strong></p><p>Enjoy up to 24 flex days off per year without losing pay, for full-time positions found through Proxify.</p><p><br></p><p><strong>Career-accelerating positions at cutting-edge companies</strong></p><p>Discover exclusive long-term remote positions at the world's most exciting companies.</p><p><br></p><p><strong>Hand-picked opportunities just for you</strong></p><p>Skip the typical recruitment roadblocks and biases with personally matched positions.</p><p><br></p><p><strong>One seamless process, multiple opportunities</strong></p><p>A one-time contracting process for endless opportunities, with no extra assessments.</p><p><br></p><p><strong>Compensation</strong></p><p>Enjoy the same pay, every month with positions landed through Proxify.</p></span>