C# Developer Contract Jobs in Cardiff
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Senior C# IAM Developer - Auth0, CIAM, AWS - Outside IR35
Posted 2 days ago by Smart Sourcer Limited
The RoleWorking for a global, market leading B2B SaaS business, you’ll lead the design and implementation of secure, ide...
- Rate £750 per day
- Category Outside
- Work type Remote
- Location City of London (EC1A)
Lead Dotnet Developer - Remote (Must have: Google Cloud Platform, C#, ASP.NET, W...
Posted 2 days ago by Accion Labs
Must have: Technical Lead / .NET Lead, C#, ASP.NET, and ASP.NET Web API. Google Cloud Platform (Google Cloud Platform) s...
- Rate Not specified
- Category Not specified
- Work type Remote
- Location Remote
Senior C# IAM Developer - Auth0, Identity & Access Control, AWS - OUTSIDE IR35
Posted 2 days ago by Smart-Sourcer
The RoleWorking for a global, market leading B2B SaaS business, you'll lead the design and implementation of secure, ide...
- Rate £750 per day
- Category Outside
- Work type Remote
- Location Remote (UK only)
C#/.NET Full Stack Developer - Telematics - Fully Remote - £500/day Outside IR35
Posted 2 days ago by RecOps
C#/.NET Full Stack Developer - Telematics - Fully Remote - £500/day Outside IR35We're looking for an experienced Full St...
- Rate £500 per day
- Category Outside
- Work type Remote
- Location United Kingdom
Fullstack DevOps Engineer C# .NET Blazor (80% oder 100%)
Posted 3 days ago by Michael Bailey Associates
Project DescriptionWe are looking for two experienced and committed DevOps Engineers to strengthen a team in Bern. The f...
- Rate Not specified
- Category Outside
- Work type Hybrid
- Location Switzerland
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C#, WPF, .NET Developer - (Outside IR35)
Posted 5 days ago by SDL Solutions Limited
C#, WPF, .NET Developer is required by global company for an initial 12-month contract.The successful candidate will hav...
- Rate Not specified
- Category Outside
- Work type Not specified
- Location London, Hertfordshire, Cambridge
Contract Software Engineer - C# .NET - SC Cleared
Posted 5 days ago by Synergize Consulting Ltd
Key ResponsibilitiesDevelop robust applications using C# and .NET within a Windows environmentDevelop and maintain web-b...
- Rate £76 per hour
- Category Inside
- Work type Hybrid
- Location 4 days on site in Luton, 1 day from home
![Automation Tester [Automation Testing, C#, .NET, CI/CD, DevOps, WPF]](https://jsassets-a2cqa6b8dtc6caeq.z02.azurefd.net/images/jobbranding/d052c3faa289b9d7/images/d052c3faa289b9d7_detail.png)
Automation Tester [Automation Testing, C#, .NET, CI/CD, DevOps, WPF]
Posted 5 days ago by GIOS Technology Limited
Key Skills: Automation Testing, C#, .NET, CI/CD, DevOps, WPFWe are looking for Automation Tester at Glasgow, Scotland -...
- Rate Not specified
- Category Inside
- Work type Hybrid
- Location Glasgow
Fullstack / DevOps Engineer - NET, C#, MongoDB
Posted 6 days ago by RM IT Professional Resources AG
Fullstack / DevOps Engineer (.NET, C#, MongoDB) Position bei unserem Kunden aus der Telekommunikations Branche in Worbla...
- Rate Not specified
- Category Outside
- Work type Hybrid
- Location Ittigen, Switzerland
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Sign UpSenior C# Engineer – .NET 9/10, AWS Lambda, SQS, SNS – Outside IR35
Posted 7 days ago by Smart Sourcer Limited
Role OverviewYou’ll operate as the technical spearhead for a greenfield product build, reporting to the Director of Engi...
- Rate £800 per day
- Category Outside
- Work type Remote
- Location City of London (EC1)
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About Our C# Developer Contract Roles in Cardiff
What does a c# developer contractor do?
Organisations bring in C# Developer contractors to build, maintain, and extend applications using the C# programming language, primarily within the Microsoft .NET ecosystem. C# is one of the most widely used languages in UK enterprise software development, making C# Developer contracts among the most frequently available in the technology contracting market. Typical engagements involve developing new applications or features using ASP.NET Core, building and consuming REST APIs, maintaining or modernising existing .NET applications, and working within larger development teams on complex software programmes. C# contractors are particularly prevalent in financial services, insurance, healthcare, and the public sector, where Microsoft technology stacks have deep roots.
The technical profile expected of C# Developer contractors centres on strong language proficiency alongside practical framework experience. ASP.NET Core, Entity Framework Core, and Web API development are the most commonly required competencies. Familiarity with Azure cloud services is increasingly expected even for primarily back-end focused roles, reflecting the widespread migration of .NET applications to the Microsoft cloud. Experience with SQL Server, unit testing with NUnit or xUnit, and working within CI/CD pipelines using Azure DevOps or GitHub Actions is broadly assumed at mid to senior levels. Contractors who combine C# expertise with front-end skills, particularly React or Angular with TypeScript, find a considerably wider range of full-stack opportunities available.
What is the market like for c# developer contractors?
Contract C# Developer work sits within among the most mature and active and high-volume segments of the UK technology contracting market. The depth of the Microsoft .NET installed base across UK enterprise ensures a continuous pipeline of development, maintenance, and modernisation work. Demand has been further supported by the migration of legacy .NET Framework applications to modern .NET versions, which requires specialist knowledge that many permanent teams lack. Rates have remained solid, with senior C# developers who combine strong language skills with Azure platform experience and knowledge of modern .NET architecture patterns commanding rates at the upper end of the developer contracting market.
What is the contracting market like in Cardiff?
Devolved government makes Cardiff the administrative centre of Wales and a consistent source of programme management, policy, and digital delivery contracts. Insurance and financial services employers, several of whom have established significant operational centres in the city, provide a steady flow of IT, data, and change roles. An emerging technology sector around the city centre and Cardiff Gate business park has added software development and cloud engineering to the local mix, though volumes remain modest compared to larger English cities. The Welsh Government's investment in digital capability is a distinctive feature of the Cardiff market, creating opportunities in govtech and public service transformation that are structured and funded differently from equivalent programmes in England.
How much do c# developer contractors usually earn in Cardiff?
Contract rates for c# developer roles in Cardiff typically range from £450 to £765 per day, depending on the scope of the role, required expertise, and the delivery expectations of the engagement.
How many c# developer vacancies in Cardiff are there on Quality Contracts?
Over the past twelve months, we have tracked over 200 c# developer contract roles across the site, with Cardiff demonstrating consistent opportunities. Data reviewed up to August 2026.