Senior .NET Full-Stack Developer — Azure/React, Hybrid JC

Gain America Inc.; Jersey City (NJ); Hybrid; USD 120,000 - 160,000; Full time

Job summary

Gain America is recruiting a Senior .NET / Full Stack Developer for contract and contract-to-hire engagements in the Jersey City, NJ market. You will own enterprise web applications end to end on the Microsoft stack, building secure APIs and modern React front ends for high-traffic business systems.

The role supports a Hybrid / on-site work model in Jersey City, NJ and requires experience with .NET, C#, ASP.NET Core, Azure, React/TypeScript, and SQL Server.

Qualifications

• 5+ years shipping production software in C#/.NET.
• Strong ASP.NET Core, Web API, and Entity Framework experience.
• Front-end proficiency with React and TypeScript.
• Hands-on Azure and CI/CD experience.

Responsibilities

• Build and maintain ASP.NET Core services and RESTful APIs behind customer-facing applications.
• Develop responsive front ends in React/TypeScript against those APIs.
• Design and tune SQL Server schemas, queries, and stored procedures.
• Deploy and monitor workloads on Azure using App Services, Functions, and DevOps CI/CD.

Skills

C#/.NET

ASP.NET Core

Web API

Entity Framework

React

TypeScript

Azure

CI/CD

Tools

Azure DevOps

SQL Server

Job description

Gain America is recruiting a Senior .NET / Full Stack Developer for contract and contract-to-hire engagements in the Jersey City, NJ market. You will own enterprise web applications end to end on the Microsoft stack, building secure APIs and modern React front ends for high-traffic business systems.

The role supports a Hybrid / on-site work model in Jersey City, NJ and requires experience with .NET, C#, ASP.NET Core, Azure, React/TypeScript, and SQL Server.