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.NET
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ReactWhy hire .NET Developers through us
- Vetted through technical screening and a practical exercise
- You interview and choose every candidate
- Working hours overlap with your team
- NDA and full IP assignment to your company
- Monthly terms, trial period and free replacement
Roles and seniority
| Level | What they do |
|---|---|
| Mid-level | Builds APIs, services and features |
| Senior | Designs architecture, data access and performance |
| Lead | Owns standards, migrations and Azure architecture |
Skills matrix
What great .NET Developers look like
Great .NET developers write clean, idiomatic modern C#, understand async programming and dependency injection, and use Entity Framework without falling into performance traps. They are comfortable modernising .NET Framework code and deploying to Azure or containers, and they follow security best practices for authentication and data access.
Questions we ask in technical interviews
- How do you avoid N+1 queries in Entity Framework Core?
- How would you migrate a WCF service?
- How do you structure a large ASP.NET Core solution?
- How do you handle background jobs in .NET?
Typical projects for .NET Developers
- New ASP.NET Core APIs and apps
- .NET Framework to modern .NET migrations
- Azure-hosted systems
- Microsoft 365 and Entra ID integrations
The first 30 days with a new .NET developer
Every engagement starts with a short, structured onboarding so you see useful output early and can judge fit quickly. A typical first month looks like this:
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Week 1 — Solution walkthrough
Builds the solution, reviews projects, dependencies, configuration and deployment, and fixes a small issue.
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Week 2 — Feature work
Delivers an API endpoint or business rule with xUnit tests and Entity Framework migrations.
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Week 3 — Modernisation check
Reports on framework versions, end-of-support dates and the effort to move legacy .NET Framework code to modern .NET.
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Week 4 — Ownership
Owns a feature into production through Azure DevOps or GitHub Actions.
What to look for beyond the CV
Years of experience and a list of technologies say little about how someone works. In our screening and in your interviews, these are the signals that matter most:
- Fluent with async/await and dependency injection
- Writes efficient Entity Framework queries and knows when to drop to SQL
- Understands Azure services and identity (Entra ID)
- Has migrated .NET Framework applications to modern .NET
- Writes clean, testable domain logic
Modern .NET or legacy maintenance?
Many companies run critical systems on older .NET Framework versions. We place developers who can maintain those safely while planning a gradual move to modern .NET. For a structured upgrade, see legacy modernization.
The .NET developer’s toolkit
Many .NET roles sit inside Microsoft-centred organisations, so familiarity with Azure DevOps, Microsoft 365 integration through Microsoft Graph and enterprise identity is often as valuable as C# skill itself.
Red flags when hiring .NET developers
- Only familiar with .NET Framework and Web Forms, with no exposure to modern .NET
- Puts all logic in controllers or stored procedures with no tests
- Cannot explain async and await or why blocking calls hurt web performance
- Uses Entity Framework without understanding the SQL it generates
- No experience with dependency injection or configuration in ASP.NET Core
A sample brief for a .NET engagement
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Current state
Which .NET version you run, how the solution is structured and where it is hosted.
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Goal
New features, a migration from .NET Framework, performance work, or an Azure move.
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Integrations
Databases, Microsoft 365, ERP or CRM systems and third-party APIs the work touches.
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Ways of working
Your source control, branching, code review and release process.
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Success measures
What a good first quarter looks like — features shipped, performance targets or a completed migration step.
For project-based work see .NET development and legacy modernization.
Upgrading while shipping
A common situation is a business that needs new features on a .NET Framework application while also wanting to modernise it. A strong .NET developer handles both: new functionality is written in shared libraries that target modern .NET where possible, upgrade tooling is used to assess each project, and the application is moved in slices — often starting with class libraries and APIs — so the business never has to pause for a rewrite.
Where .NET developers add the most value
Beyond writing features, an experienced .NET developer often pays for themselves by fixing long-standing pain points in Microsoft-centred estates:
- Replacing scheduled console apps and Windows services with reliable background jobs or Azure Functions
- Exposing clean APIs over ageing databases so new web and mobile front ends can be built
- Connecting line-of-business applications to Microsoft 365, Teams and SharePoint through Microsoft Graph
- Improving slow pages by fixing N+1 queries, adding caching and moving to async I/O
- Introducing automated tests and pipelines around applications that were previously deployed by hand
Typical early wins
Within the first couple of months, a .NET developer joining an existing team often delivers: a reliable local setup documented in the repository, a build and test pipeline for the main solution, an assessment of which projects can move to modern .NET first, and fixes for the slowest or most error-prone screens identified from logs. These early improvements make later feature work faster and give you a clear modernisation roadmap.
Ways to engage
| Model | How it works | Best for |
|---|---|---|
| Full-time dedicated | 40 hours a week on your work | Ongoing product development |
| Part-time | 20 hours a week | Maintenance and smaller roadmaps |
| Team | Several specialists with a lead | New products and workstreams |
Rates depend on seniority and engagement length; you receive a written rate card within one business day. Prefer a managed project? See .NET development.
Need a different skill set? See every role on Hire Software Developers.