Cygnus Professionals Inc. · 6 hours ago
.NET C# Developer (PostgreSQL / NoSQL) - W2 ONLY
Cygnus Professionals Inc. is seeking a skilled .NET C# Developer to design, develop, and maintain scalable backend systems and APIs. The ideal candidate will collaborate with cross-functional teams to deliver high-performance, reliable software solutions using the .NET ecosystem and various database technologies.
Responsibilities
Design, develop, and maintain applications using C# and .NET (Core/6/7/8+)
Build and consume RESTful APIs and microservices
Develop data access layers using PostgreSQL and/or NoSQL databases (MongoDB, Redis, Cassandra, etc.)
Write clean, maintainable, and testable code following best practices
Optimize database queries and improve system performance
Implement caching, logging, and monitoring solutions
Participate in code reviews , debugging, and troubleshooting
Collaborate with frontend, DevOps, and QA teams
Contribute to CI/CD pipelines and deployment processes
Maintain documentation and technical specifications
Qualification
Required
6-8 years of experience with C# and .NET Core/.NET Framework
Strong knowledge of PostgreSQL
Experience with NoSQL databases
Solid understanding of Entity Framework / Dapper
Experience building REST APIs
Knowledge of LINQ, async/await, multithreading
Familiarity with Git and version control
Understanding of OOP, SOLID principles, and design patterns
Basic understanding of Docker or containerization