Senior Dotnet Developer (Senior .NET Developer)

We are looking for highly experienced Senior .NET Developer who is strong in below areas.

Also who can work on our W2 Payroll (with/without sponsorship) - No VISA Restriction.

Role: Senior .NET Developer/Lead

Role Type: Long Term W2 Contract Only - No Third Party C2C is allowed.

Location: Trenton, NJ (100% Onsite) - No Remote work is allowed.

Interview Mode: In-Person/F2F Only

Mandated Skills/Experience:

• Minimum 12-15 years experienced in C#/.NET application development, in the capacity of leading the team/responsibilities related to mentor mid/junior C# developers; perform code reviews; drive engineering quality.
• Expertise in .NET Framework and .NET Core/6/8+) and Entity Framework / EF Core.
• Strong RDBMS such as PostgreSQL strongly preferred (Oracle/SQL Server acceptable).
• ASP.NET Core Web API design (REST) for front-end integration.
• SOLID design patterns.
• Unit/integration/regression testing frameworks; TDD/mocking
• Git, CI/CD, and static code analysis (SonarQube)
• Proven ability to read, reason about, and safely refactor large, unfamiliar codebases
• Exceptional attention to correctness — financial/benefit calculation accuracy
• Hands-on with AWS experience.
• Experience integrating with enterprise job schedulers (Stonebranch, Control-M, CA7).
• Npgsql specifics, EF Core performance internals, or ORM migration experience.