Senior Software Engineer - End-to-End Modernization Remote

United States Digital Space LLC; United States; Remote; USD 150,000 - 210,000; Full time

Job summary

United States Digital Space LLC seeks a senior software engineer to own loan-platform services end-to-end, from requirements through production deployment and monitoring. You will work on .NET 8/9 APIs with React frontends, migrate legacy .NET Framework apps, and build robust vendor integrations while maintaining automated tests, evidence, and CI/CD gates.

This role emphasizes hands-on coding, strong debugging, and clear technical writing in a remote, high-responsibility culture that rewards

Qualifications

• Deep C#/.NET expertise across generations, including .NET 8/9 and legacy frameworks.
• Strong SQL Server skills with EF Core, EF6, Dapper, and data migrations.
• Evidence-first debugging and reliable, testable code with CI/CD gates.

Responsibilities

• Own systems end-to-end from requirements review through production deployment and monitoring.
• Implement new capabilities, vendor integrations, and refactor legacy code safely.
• Ensure tests, release notes, and evidence-backed deployments with gated releases.

Skills

C# / .NET

SQL Server

Debugging

REST APIs

Testing (xUnit/NUnit)

CI/CD

Technical writing

Proactivity

System design

Tools

GitHub Actions

Docker

Azure Functions

EF Core / EF6

Job description

United States Digital Space LLC seeks a senior software engineer to own loan-platform services end-to-end, from requirements through production deployment and monitoring. You will work on .NET 8/9 APIs with React frontends, migrate legacy .NET Framework apps, and build robust vendor integrations while maintaining automated tests, evidence, and CI/CD gates.

This role emphasizes hands-on coding, strong debugging, and clear technical writing in a remote, high-responsibility culture that rewards