Hire .NET developers

.NET runs a huge share of the world’s business software: internal platforms, B2B products, financial systems, and the APIs behind them. That maturity cuts both ways. The ecosystem is stable and well documented, but a lot of the developers in it learned their habits on .NET Framework a decade ago and never updated them. The difference between a current .NET developer and a stale one shows up in your codebase within a month: async done properly or thread pools quietly starving, dependency injection used cleanly or a service locator hiding everywhere, EF queries that scale or ones that fall over at real data volumes. turnkey.dev vets for the current kind.

What a .NET developer does for you

A strong .NET hire will:

• Build APIs that hold up in production. ASP.NET Core services with clean routing, validation, versioning, and authentication, exposed over REST or gRPC depending on who is consuming them.
• Get the data layer right. Entity Framework where it helps, raw SQL where it matters, migrations under version control, and query plans checked against realistic data, not ten sample rows.
• Modernize without a rewrite. Move .NET Framework apps to .NET 8 incrementally, keep the business running while doing it, and know which parts genuinely need to change.
• Fit into your Azure footprint. App Service, Functions, Service Bus, Key Vault, and managed SQL, wired in with configuration and identity handled properly rather than connection strings in source.
• Leave the codebase testable. Unit and integration tests that catch regressions, plus profiling and load testing when performance is on the line, so releases stop being a gamble.

When to hire a .NET developer

The common triggers: you have a .NET Framework application that Microsoft’s support clock is pushing you to modernize, your product is built on ASP.NET Core and the roadmap outgrew the current team, a key C# developer left and took the domain knowledge with them, or you are building a new B2B product and want a stack your enterprise customers already trust. If your need is primarily cloud infrastructure rather than application code, the Azure hub below is likely the better fit, and the two overlap in our talent pool.

How turnkey.dev vetting works

Every developer goes through a screen on fundamentals (C#, async and memory behavior, data access, API design), a practical exercise built around a realistic ASP.NET Core service with a database and tests, and a review of production systems they have owned, including scale, framework migrations, and what broke. We specifically probe for modern .NET practice versus habits carried over from the Framework era. We reject far more than we accept.

Seniority, and what each level is for

Most companies coming to us need one senior developer who can own a service or a modernization track, with a lead brought in briefly when the architecture itself is the question.

What it costs and how fast

Vetted .NET developers typically bill in the $70 to $140 per hour range, with architects and deep legacy modernization specialists at the top. Rates vary with timezone and how rare your particular mix is, a plain ASP.NET Core API is easier to staff than a large Framework migration with a live customer base. You will see the rate before committing, and requesting a shortlist is free. Expect a shortlist in 2 to 5 days.

Start with a request, not a contract

Tell us your current stack, .NET version, database, and hosting, the goal (new build, modernization, scaling, or extra capacity), and your timeline. We come back with a short list of vetted developers who fit, including rate and availability. You interview, run a paid trial if you want, and only then decide. If the fit is wrong in the first two weeks, we re-match at no cost.