Senior .NET / Full Stack Developer — Remote (US)

Gain America Inc.; Northern (KY); Hybrid; USD 120,000 - 160,000; Full time

Job summary

Gain America Inc. is seeking a Senior .NET / Full Stack Developer to own enterprise web applications across the U.S. on the Microsoft stack, building secure APIs and modern React front ends for high-traffic systems.

The role focuses on delivering end-to-end features using ASP.NET Core, React/TypeScript, SQL Server, and Azure services, with remote work available for U.S.-based candidates.

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

SQL Server

Azure DevOps

App Services

Job description

Gain America is recruiting a Senior .NET / Full Stack Developer for contract and contract-to-hire engagements with our enterprise clients across the U.S.. Own enterprise web applications end to end on the Microsoft stack — building secure APIs and modern React front ends for high-traffic business systems.

Work model: Fully remote (U.S.-based)
Core stack: .NET, C#, ASP.NET Core, Azure, React/TypeScript, SQL Server

What you'll do

• 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

What you bring

• 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

Gain America is a technology staffing partner placing skilled consultants with leading employers across financial services, insurance, healthcare, and the public sector. You'll work with a dedicated recruiter who advocates for you from first call through offer. Client names are shared once there is a mutual fit.