.NET Software Developers

Quantum Technologies. LLC; Delaware; On-site; USD 90,000 - 130,000; Full time

Job summary

Quantum Technologies LLC in Delaware seeks a software engineer to design, develop, and maintain scalable .NET applications using C#, Blazor, and Azure.

You will work in an agile team, leverage AI-assisted tools, implement EF Core with SQL Server, and build serverless solutions with Azure Functions. Strong testing with Playwright is a plus. Join a collaborative environment focused on delivering high-quality software and continuous improvement.

Qualifications

• Proficiency with C# and .NET Core in web apps.
• Experience building Blazor Server/WebAssembly apps.
• Familiarity with EF Core and SQL Server data modeling.
• Experience with AI-assisted development tools.
• Knowledge of serverless Azure Functions and frontend UI with Bootstrap.
• Ability to work in Agile teams and implement CI/CD.
• Experience with automated UI/API/database testing (Playwright).
• Strong problem-solving and collaboration skills.

Responsibilities

• Design, develop, and maintain scalable C#/.NET Core applications.
• Build web apps using Blazor Server or Blazor WebAssembly.
• Leverage AI-assisted tools to improve code quality and testing.
• Model data with EF Core and SQL Server; optimize performance.
• Create serverless solutions with Azure Functions and responsive UI.
• Translate requirements into scalable solutions within Agile teams.
• Design and support AI-enabled applications and workflows.
• Contribute to SDLC with automated testing (Playwright) and CI/CD.
• Collaborate across cross-functional teams to deliver quality software.

Skills

C#

.NET Core

Blazor

EF Core

SQL Server

UI testing

Agile

CI/CD

AI-assisted tools

Performance optimization

Tools

GitHub Copilot

Cursor

Claude Code

Playwright

Azure Functions

Bootstrap

Job description

• Design, develop, and maintain scalable, modular applications using C# and .NET Core.


• Build and enhance modern web applications using Blazor Server, Blazor WebAssembly, or similar front-end frameworks.


• Leverage AI-assisted development tools (e.g., GitHub Copilot, Cursor, Claude Code) to improve code quality, testing, refactoring, and development efficiency.


• Design and optimize data models, database schemas, and application performance using Entity Framework Core and SQL Server.


• Develop and maintain serverless solutions using Azure Functions or comparable technologies.


• Create responsive and user-friendly interfaces using Bootstrap or similar CSS frameworks.


• Translate business requirements into scalable, maintainable technical solutions within Agile development teams.


• Design, build, and support AI-enabled applications, agents, and intelligent workflows.


• Evaluate, implement, and optimize AI-augmented software development lifecycle (SDLC) practices.


• Develop and maintain automated testing solutions for UI, API, and database validation using Playwright and related technologies.


• Participate in sprint planning, code reviews, testing, CI/CD processes, and collaborative software delivery activities.


• Troubleshoot application, performance, and testing issues, including test reliability and automation framework improvements.


• Collaborate with cross-functional teams to deliver high-quality software and drive continuous improvement initiatives.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.