Toptal

Senior Full Stack Developer — C# | Remote

Remote, United States remote Entry Salary not listed
remote Technology & IT Curated
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About the role

Headquarters: Remote
URL: https://www.toptal.com/

About the Role

We're looking for a Senior Full Stack Developer to design, build, and maintain applications across a modern stack — C# on the backend, Angular on the frontend, deployed and scaled on Azure, with SQL Server powering the data layer. This is a hands-on engineering role: you'll own features end to end, from database schema through UI, while making sound architecture decisions along the way. If you're comfortable moving fluidly across the full stack and want real ownership rather than a narrow slice of the codebase, this is built for that.

What You'll Do

Design, develop, and maintain backend services and APIs using C# and .NET

Build responsive, maintainable frontend applications using Angular

Deploy, monitor, and scale applications on Azure, leveraging Azure-native services as appropriate

Design and optimize SQL Server database schemas, queries, and stored procedures

Implement RESTful APIs and integrate with internal and third-party services

Write clean, testable, production-quality code, including unit and integration tests

Troubleshoot and resolve performance, scalability, and reliability issues across the stack

Participate in code reviews, architecture discussions, and technical planning

Support CI/CD pipelines and deployment workflows within the Azure ecosystem

Collaborate with cross-functional teams (product, QA, design) to deliver features end to end

What You Bring

Strong hands-on experience with C# and .NET in a production environment

Solid experience building frontend applications with Angular

Working experience with Azure, including deployment, monitoring, and core Azure services

Strong SQL Server skills, including schema design, query optimization, and stored procedures

Experience with RESTful API design and development

Experience with version control (Git) and CI/CD workflows

Strong problem-solving skills and ability to work independently across the full stack

Solid communication skills for collaborating with cross-functional and distributed teams

Nice to Have

Experience with Azure DevOps for CI/CD and work item tracking

Familiarity with microservices architecture or containerization (Docker, Kubernetes)

Experience with Azure Functions, App Service, or other Azure PaaS offerings

Exposure to Entity Framework or other .NET ORMs

Why This Role

True full stack ownership: Work across backend, frontend, database, and cloud infrastructure, not a single narrow layer

Modern Microsoft ecosystem: Build on current C#, Angular, and Azure best practices

Cross-functional collaboration: Work closely with product, QA, and design teams on end-to-end delivery

Flexibility: Remote-friendly engagement structure

How to Apply

Ready to bring full stack C#, Angular, and Azure expertise to a production system? Apply through Toptal here: https://www.toptal.com/talent/apply

 

To apply: https://weworkremotely.com/remote-jobs/toptal-senior-full-stack-developer-csharp-remote

Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Role
Technology & IT API integration MySQL Remote Collaboration SQL remote

Likely questions

  1. Tell us about work you have done that is close to the Senior Full Stack Developer — C# | Remote role.
  2. How would you approach your first 30 days at Toptal?
  3. Which of API integration, MySQL and Remote Collaboration have you used recently, and what did it help you achieve?
  4. Describe a time you solved a problem without waiting to be told exactly what to do.
  5. How do you stay organised and communicate clearly when working remotely?

Prepare before the call

  • A recent example that proves your experience with API integration, MySQL and Remote Collaboration.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Senior Full Stack Developer — C# | Remote role because I can bring practical experience in API integration, MySQL and Remote Collaboration, learn the team quickly, and contribute to the outcomes Toptal needs from this hire.

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