<p> </p> <p><strong>Job Title:</strong> Senior Backend Developer (C#/.NET + Node.js)</p> <p><strong>Key Skills:</strong> C#, .NET, Node.js, JavaScript, MongoDB, NoSQL, Backend Development, TDD</p> <p><strong>Experience:</strong> 5+ YOE.</p> <p><strong>Location:</strong> Costa Rica, Peru, Colombia, Bolivia</p> <p><strong>Mode:</strong> Remote</p> <p>We at Coforge are hiring Senior Backend Developer (C#/.NET + Node.js) (#21053-4-4) with the following skill set.</p> <p><strong>Key Responsibilities</strong></p> <ul> <li> <p>Design, develop, and maintain scalable backend services using Node.js, C#, and .NET.</p> </li> <li> <p>Implement and manage databases, particularly MongoDB and other NoSQL solutions, while supporting ETL processes and reporting requirements.</p> </li> <li> <p>Collaborate with cross-functional teams to define, design, and deliver new features while effectively communicating technical and business requirements.</p> </li> <li> <p>Debug and troubleshoot application issues and apply test-driven development practices to ensure reliable, maintainable, and high-quality code.</p> </li> </ul> <p><strong>Required Skills & Qualifications</strong></p> <ul> <li> <p>5+ years of experience in backend software development.</p> </li> <li> <p>Strong proficiency in JavaScript, particularly Node.js.</p> </li> <li> <p>Strong hands-on experience with C# and the .NET framework.</p> </li> <li> <p>Experience with MongoDB or other NoSQL databases.</p> </li> <li> <p>Solid understanding of backend development principles and best practices.</p> </li> <li> <p>Experience designing, developing, and maintaining backend services.</p> </li> <li> <p>Strong debugging and troubleshooting skills.</p> </li> <li> <p>Knowledge of test-driven development and software quality practices.</p> </li> <li> <p>Strong attention to detail with a proactive approach to problem-solving.</p> </li> <li> <p>Bachelor’s degree in Computer Science, Information Technology, or a related field.</p> </li> </ul> <p><strong>Preferred Skills:</strong></p> <ul> <li> <p>Experience with Python.</p> </li> <li> <p>Familiarity with ETL processes and reporting tools.</p> </li> <li> <p>Experience with debugging techniques and tools.</p> </li> <li> <p>Experience applying test-driven development methodologies.</p> </li> </ul> <p><strong>Posted On:</strong> 12-10-2026</p> <p>At Coforge, we hire professionals based solely on their skills and do not discriminate based on age, disability, religion, gender, sexual orientation, socioeconomic status, or nationality.</p>