C# Developer Contract Jobs

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Updating results… 31 Contract jobs sorted by:
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Updating results… 31 Contract jobs

C# Quant Developer | Real-Time Market Data | Investment Bank

Posted 1 day ago by Vertus Partners


The Role:A large financial institution is looking for a Quantitative Developer to join a specialist quantitative technol...

  • Rate £1,100 per day
  • Category Inside
  • Work type Hybrid
  • Location City of London

C# Developer (Contract)

Posted 1 day ago by AdRoc Group


We are looking for a Senior Engineer who specialises in C# to join one of our public sector clients.Rate: up to £550 per...

  • Rate £550 per day
  • Category Inside
  • Work type Remote
  • Location United Kingdom

Senior .NET/C# Developer, £370 per day inside IR35

Posted 4 days ago by Bench IT Limited


Senior .NET/C# Developer, £370 per day inside IR353 months initially, London & Remote WorkingBench IT require an exp...

  • Rate £370 per day
  • Category Inside
  • Work type Hybrid
  • Location London, UK

C# Developer

Posted 4 days ago by GCS


Role: C# Developer - Desktop ApplicationsDuration: 6 months with likely extensionRate: £416 p/d (inside IR35)Location: H...

  • Rate £416 per day
  • Category Inside
  • Work type Hybrid
  • Location London, UK

Commodities C# Developer

Posted 5 days ago by Emagine Consulting


Main ResponsibilitiesDevelop and enhance software solutions related to front office trading operations.Collaborate with...

  • Rate £650 per day
  • Category Inside
  • Work type Onsite
  • Location London, United Kingdom

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C# Developer

Posted 5 days ago by Impellam Group


About the RoleWe are seeking an experienced Commodities Trading C# Developer to join a London-based core development tea...

  • Rate Not specified
  • Category Inside
  • Work type Not specified
  • Location London Area, United Kingdom

C# Developer - Front Office Investment bank

Posted 5 days ago by Meraki Talent


The RoleAs a Senior C# Developer, you'll play a key role in designing, developing and enhancing enterprise-grade applica...

  • Rate Not specified
  • Category Not specified
  • Work type Hybrid
  • Location London, United Kingdom

10+years - Full Stack Developer (.NET/C# + Angular + SQL + AI) - 100% Remote - O...

Posted 5 days ago by Innovative IT Solutions Inc


Required QualificationsBachelor's degree in Computer Science, Information Technology, or a related field.5+ years of exp...

  • Rate Not specified
  • Category Outside
  • Work type Remote
  • Location Remote

C# Developer (Remote)

Posted 7 days ago by Jobs Ai


Role OverviewWe are hiring for one of our clients, seeking a C# Developer to work on a contract basis.The role involves...

  • Rate £56 per hour
  • Category Outside
  • Work type Remote
  • Location EMEA

Senior C# Developer - Liquidity

Posted 1 week ago by Jobserve


Senior C# Developer - LiquidityHybrid Working - London - 2-3 days a week on site.Financial ServicesLorien's leading bank...

  • Rate Not specified
  • Category Inside
  • Work type Hybrid
  • Location London

Senior C#/Angular Developer

Posted 1 week ago by Precision System Design Inc.


Our Fortune 100 client is hiring for a Senior Fullstack Developer to focus on Angular front-end development and C# back-...

  • Rate Not specified
  • Category Outside
  • Work type Remote
  • Location Remote or Hybrid

C# .NET GenTax Developer

Posted 1 week ago by Software People, Inc.


ResponsibilitiesThe Programmer will be assigned job assignments to configure the STARS application.They will be responsi...

  • Rate Not specified
  • Category Outside
  • Work type Remote
  • Location Remote or Maine

senior c# / .net developer | risk & securities lending

Posted 1 week ago by Randstad


About the OpportunityAre you a seasoned C# engineer with a deep understanding of financial markets? We are seeking an ex...

  • Rate £550 per day
  • Category Not specified
  • Work type Hybrid
  • Location london, london

C# Developer

Posted 1 week ago by Michael Page Technology


Our client is a Manufacturing business based in Birmingham and they are looking for a C# Developer to join on an initial...

  • Rate £55,000 per year
  • Category Fixed-Term
  • Work type Hybrid
  • Location Birmingham, UK

Senior AWS Developer (C#)

Posted 1 week ago by Precision System Design Inc.


Our Fortune 100 direct client is hiring for a talented C# Developer with strong experience working with AWS services.You...

  • Rate Not specified
  • Category Outside
  • Work type Remote
  • Location Remote or Hybrid in Cleveland, Ohio

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Senior C# .NET Developer (Banking)

Posted 1 week ago by Jobserve


What You'll DoAs our Senior C# .NET Developer, you will play a crucial role in developing and maintaining applications t...

  • Rate Not specified
  • Category Not specified
  • Work type Hybrid
  • Location London

Remote -Senior C#/.NET Developer GenTax/FAST Enterprise, PostgreSQL SQR

Posted 1 week ago by NovaLink Solutions


Job DescriptionThe Programmer will be assigned job assignments to configure the STARS application.They will be responsib...

  • Rate Not specified
  • Category Outside
  • Work type Remote
  • Location Remote

C#/.NET Developer (Product Security-Black Duck exp)-Remote

Posted 1 week ago by mProgen


We are seeking a highly skilled Senior Developer with strong expertise in Product Security to join our engineering team....

  • Rate Not specified
  • Category Not specified
  • Work type Remote
  • Location Remote

Senior Developer (C#/.NET)

Posted 1 week ago by Hunter Bond


Role: Senior Developer (C#/.NET)Location: London (Hybrid)Rate: Up To £800 Per DayThe roleAn exciting opportunity has ari...

  • Rate £800 per day
  • Category Not specified
  • Work type Hybrid
  • Location London

Senior Full Stack C# Developer £450/day | Outside IR35 | 6 months | Leeds (1 day...

Posted 1 week ago by RecOps


RecOps is partnered with a client looking for an experienced Full Stack Developer to join an exciting project on an init...

  • Rate £450 per day
  • Category Outside
  • Work type Hybrid
  • Location United Kingdom

About Our C# Developer Contract Roles

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.

How much do c# developer contractors usually earn?

Contract rates for c# developer roles typically range from £500 to £850 per day, depending on the scope of the role, required expertise, and the delivery expectations of the engagement.

How many c# developer vacancies are there on Quality Contracts?

Over the past twelve months, we have tracked over 200 c# developer contract roles across the site. Data reviewed up to July 2026.