Senior .NET Developer

ExtensisHR • Manalapan, NJ

5d • $120,000 - $160,000

About The Position

This Senior .NET Developer (C#) , will be hands-on development role. You will architect, build, and optimize backend services, APIs, and integrations. After the initial onboarding, you should be able to work independently with product managers and business stakeholders.

Requirements

• 7+ years of professional .NET development experience
• Deep expertise in C#, .NET Core, and modern API design
• Strong SQL experience (procedures, query tuning, data modeling)
• Experience with Entity Framework / EF Core at scale
• Ability to work independently and deliver end-to-end features
• Strong communication skills with product and business teams
• Familiarity with Git, CI/CD, Azure DevOps or similar pipelines

Nice To Haves

• Experience in cloud environments (Azure, AWS)
• Experience in distributed systems or high-throughput APIs
• Exposure to healthcare or data analytics systems (nice to have

Responsibilities

• Architect, design, and develop backend services using C# / .NET Core
• Build and optimize REST APIs and service components
• Integrate tightly with SQL Server and PostgreSQL data models
• Lead troubleshooting and long-term system improvements
• Independently gather requirements and deliver completed features
• Mentor junior team members when needed
• Drive best practices in code quality, performance, and reliability
• Participate in roadmap planning with product team

Benefits

• PTO
• 401k sponsored plan
• Health/Dental insurance

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed