Get matched, vetted .NET developer profiles within 48 hours of sharing your requirements. Hire C#, ASP.NET Core, Azure and legacy .NET specialists to build new applications, extend your team or modernise ageing systems, with developers who work in UK hours and code you fully own.
- Profiles within 48 hours
- You interview every developer
- NDA and full IP ownership
- Scale up or down monthly
Experienced .NET developers, without the long recruitment process
Hiring experienced C# and .NET developers in the UK can take months, and many businesses need help sooner: a deadline is approaching, a key developer has left, or an old .NET system needs upgrading before support ends.
We shortlist vetted developers matched to your stack and send you profiles within 48 hours. You interview the candidates, choose who joins, and we handle contracts, equipment, cover and technical oversight. Most developers start within 7 to 14 days of your first call.
Prefer us to deliver the whole project instead? See our .NET development services.
.NET developers you can hire
Matched to the .NET versions, tools and project type you actually work with.
ASP.NET Core developers
Web applications, portals and REST or gRPC APIs built with ASP.NET Core and Entity Framework Core.
Azure .NET developers
App Service, Azure Functions, Azure SQL and Service Bus, with CI/CD in Azure DevOps or GitHub Actions.
Legacy .NET specialists
Maintaining and migrating .NET Framework, Web Forms, WCF and WinForms applications.
.NET MAUI developers
Cross-platform mobile and desktop apps, including migrations from Xamarin.
Enterprise integration developers
Integrations with Microsoft 365, Dynamics 365, Entra ID, SQL Server and third-party systems.
.NET DevOps engineers
Containerised .NET on Docker and Kubernetes, automated testing and deployments.
QA and test engineers
Automated testing with xUnit, NUnit and Playwright for .NET applications.
What our .NET developers work on
Enterprise systems
CRM, ERP and workflow software for growing organisations.
APIs and integrations
Secure APIs connecting your applications, partners and data.
Cloud migrations
Moving .NET workloads to Azure or AWS and optimising hosting costs.
Version upgrades
Upgrading out-of-support .NET versions to the current long-term support release.
Choose how you hire .NET developers
Pick the model that matches how much control you want and how long you need help.
| Model | Best for | Who manages the work | Billing |
|---|---|---|---|
| Dedicated .NET developer | Ongoing work on a long-term product | You, with our technical support | Monthly |
| Team augmentation | Adding .NET, Azure or migration skills to your team | You | Monthly or hourly |
| Dedicated .NET team | Building or modernising a system without growing headcount | Our project manager, reporting to you | Monthly |
| Hourly support | Maintenance, fixes and small improvements | Shared | Hourly |
How hiring .NET developers works
Profiles within 48 hours; developers usually start within 7 to 14 days.
Share your needs
Tell us your project, .NET version, tools, seniority and start date.
Profiles in 48 hours
We send vetted developers matched to your requirements.
Interview and test
Run your own technical interviews or C# tasks.
Onboard securely
NDA, contract and least-privilege access to your repositories and tools.
Start and review
Regular check-ins, with a replacement arranged if needed.
How we vet .NET developers
We assess the skills that matter in production .NET code, not just familiarity with C#.
That means a shortlist worth interviewing, rather than a pile of CVs to filter yourself.
- Clean, maintainable C# and SOLID design principles
- ASP.NET Core, dependency injection and middleware
- Entity Framework Core and SQL performance
- Automated testing with xUnit or NUnit
- Secure authentication with Entra ID or OAuth
- Git workflows, code review and CI/CD
- Clear written and spoken English
Cost to hire .NET developers in the UK
Indicative rates for a mid-level to senior developer. Your quote depends on skills, seniority and contract length.
| Option | Hourly rate | Monthly (full time) | Best for |
|---|---|---|---|
| UK-based .NET developer | £60 to £120 | £7,000 to £12,000+ | On-site work, regulated projects, close daily collaboration |
| Hybrid team (UK management, offshore developers) | £25 to £50 | £3,000 to £6,000 | Long-term development at lower cost with UK-hours coordination |
Rates are indicative and exclude VAT.
Hiring through us vs employing in-house
| Cost | Employing in-house | Hiring through Fulminous |
|---|---|---|
| Employer National Insurance | 15% on earnings above the threshold | Included |
| Workplace pension | At least 3% employer contribution | Included |
| Recruitment | Agency fees or weeks of hiring time | No fee |
| Equipment and software licences | Paid by you | Included |
| Holiday and sickness cover | Work pauses | Cover arranged |
| Scaling down | Notice periods and redundancy rules | Monthly notice |
Get matched .NET developer profiles within 48 hours
Tell us the skills and .NET version you need. We'll send vetted profiles and a clear monthly price, with no obligation.
Business software from our portfolio
A selection of business platforms our team has designed and built.
Security, IP and compliance
Your code, data and systems stay protected from the first conversation to the last commit.
A note on IR35: if you hire individual contractors, UK off-payroll working rules can make your business responsible for deciding their employment status. Engaging a company to provide developers under a service contract can simplify this, but confirm your position with your accountant or legal adviser.
- NDA signed before any project details are shared
- Full ownership of code and documentation
- Work in your repositories, Azure tenant and accounts
- UK GDPR-aware handling of personal data
- Peer review, automated tests and dependency scanning
- Access removed promptly when an engagement ends
Why hire .NET developers through Fulminous Software
Fast shortlists
Matched profiles within 48 hours of understanding your needs.
You choose who joins
Interview and test every candidate yourself.
Modern and legacy .NET
Developers for new builds and for upgrading older systems.
UK-hours management
London-headquartered, with coordination during UK business hours.
Flexible commitment
Scale your team up or down with monthly notice.
Replacement if needed
If a developer isn't the right fit, we'll arrange a replacement quickly.
FAQs: Hiring .NET developers
Can I really hire a .NET developer in 48 hours?
We aim to send you matched, vetted .NET developer profiles within 48 hours of understanding your requirements. Once you've interviewed and chosen a developer, most start within 7 to 14 days, depending on seniority, interview availability and onboarding.
How much does it cost to hire a .NET developer in the UK?
As a guide, UK-based .NET developers typically cost £60 to £120 an hour, or £7,000 to £12,000 or more a month full time. Hybrid teams with UK management and offshore developers typically cost £25 to £50 an hour, or £3,000 to £6,000 a month. Rates depend on skills, seniority and contract length.
What .NET skills can I hire for?
You can hire developers experienced in C#, ASP.NET Core, Web API, Entity Framework Core, Blazor, .NET MAUI, Azure, SQL Server and legacy .NET Framework, including Web Forms, WCF and WPF. We match profiles to the versions and tools you actually use.
Can hired .NET developers upgrade or migrate our legacy application?
Yes. You can hire developers experienced in moving .NET Framework, Web Forms, WCF and Xamarin applications to modern .NET and .NET MAUI, or in upgrading out-of-support .NET versions to the current long-term support release.
Can I interview .NET developers before hiring them?
Yes. You can run technical interviews or practical tasks with every candidate. No developer starts without your approval, and we arrange a replacement if the fit isn't right later.
Will the developers work in UK hours?
Yes. Developers work with overlapping UK business hours, join your stand-ups and use your tools, such as Azure DevOps, GitHub, Jira and Microsoft Teams.
Do I own the code my .NET developers write?
Yes. We sign an NDA before you share project details, and full ownership of all code and documentation is transferred to you. Developers work in your repositories and accounts.
Should I hire developers or outsource my .NET project?
Hire developers if you want to direct the work and build your team's capability. Choose a managed project if you want an agreed outcome delivered to a fixed scope through our .NET development services.
Ready to hire .NET developers?
Tell us the skills and .NET version you need. We'll send matched developer profiles within 48 hours and a clear monthly price.
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