Inside IR35 C# contracts

13 open inside IR35 C# contracts, typically £450–£605 a day.

Open contracts: 13
Typical day rate: £450–£605Median £490, from 11 contracts stating a rate
Remote: 23% of these contracts

At the median £490 a day over 220 working days, you'd take home about £68,893 a year outside IR35, or £65,001 inside IR35. Work out your own take-home pay

13 contracts found

SmartCOMM DeveloperRemote
£500/dayInside IR35
6 months · Posted 4 days ago
- C#
C# .NET DeveloperHybrid
Investment banking client
£400–£416/dayInside IR35 (implied)
London · 24 months · Posted 5 days ago
- C#
- .NET
- Object-oriented programming
- SQL Server
- REST APIs
- +1 more
Microsoft Office Add-In Developer (.NET/C#)
Prestigious London-based law firm
Rate not statedInside IR35
Farringdon · Posted 7 days ago
- C#
- .NET
- Azure
- Azure DevOps
- DevOps
2 adverts
AI Platform EngineerRemote
Local client
£450–£480/dayInside IR35
London · 3 months · Posted 8 days ago
- C#
- Python
- Azure
- SharePoint
- OpenAI / ChatGPT
- +7 more
Senior Software EngineerOn site
Naval Combat Systems programme
£375–£503/day£50–£67/hrInside IR35
New Malden · 12 months · SC clearance · Posted 15 days ago
- C#
- C++
Azure Engineer - Cloud Native ApplicationsRemote
Major client
£620/dayInside IR35
London · 6 months · BPSS clearance · Posted 18 days ago
- C#
- Azure
- Cloud native
- DevOps
- Azure DevOps
- +3 more
Front Office .Net Developer
High-performing Commodities Trading team
£600–£700/dayInside IR35
London · 6 months · Posted 22 days ago
- C#
- .NET
- Agile
- Azure
- Angular
- +7 more
Senior .NET DeveloperHybrid
Global Markets collateral business
£700–£750/dayInside IR35 (implied)
Bromley · 12 months · Posted 29 days ago
- C#
- .NET
- REST APIs
- Angular
- JavaScript
- +3 more
C# Software EngineerHybrid
Leading organisation within the defence and security sector
£585/day£78/hrInside IR35
Luton · 12 months · SC clearance · Posted 35 days ago
- C#
- .NET
- Object-oriented programming
- Test automation
- CI/CD
- +2 more
Automation Application DeveloperHybrid
Banking sector
£400–£440/dayInside IR35
London · 7 months · Posted 35 days ago
- C#
- UiPath / RPA
- Agile
- .NET
- SQL
- +7 more
C# Software Engineer
Market-leading Defence and Aerospace company
£488/day£65/hrInside IR35
Stevenage · 12 months · SC clearance · Posted 39 days ago
- C#
- C++
- Agile
- CI/CD
- Test-driven development
- +4 more
3 adverts
Agentic AI Engineer, .NET, C#Hybrid
Global technology leader, NASDAQ listed
£450–£525/dayInside IR35
Bristol · 6 months · Posted 40 days ago
- C#
- Agentic AI
- .NET
- ASP.NET
- LLMs / generative AI
- +2 more
2 adverts
Senior C# DeveloperHybrid
Global Markets technology team at a financial services firm
Rate not statedInside IR35
London · 6 months · Posted 42 days ago
- C#
- Agile
- Scrum
- SQL
- CI/CD
- +5 more

Contracts, sorted by Posted, newest first. Page 1 of 1.
Role: sort by Role, A to Z	IR35: sort by IR35, outside IR35 first	Rate: sort by Rate, highest first	Location: sort by Location, A to Z	Contract length: sort by Contract length, longest first	Posted: sort by Posted, oldest first
SmartCOMM Developer C#	Inside IR35	£500/day	Remote	6 months	4 days ago
C# .NET Developer Investment banking client C# .NET Object-oriented programming SQL Server REST APIs +1 more	Inside IR35 (implied)	£400–£416/day	London · Hybrid	24 months	5 days ago
Microsoft Office Add-In Developer (.NET/C#) Prestigious London-based law firm C# .NET Azure Azure DevOps DevOps 2 adverts	Inside IR35	Not stated	Farringdon	Not stated	7 days ago
AI Platform Engineer Local client C# Python Azure SharePoint OpenAI / ChatGPT +7 more	Inside IR35	£450–£480/day	London · Remote	3 months	8 days ago
Senior Software Engineer Naval Combat Systems programme C# C++	Inside IR35	£375–£503/day £50–£67/hr	New Malden · On site	12 months SC clearance	15 days ago
Azure Engineer - Cloud Native Applications Major client C# Azure Cloud native DevOps Azure DevOps +3 more	Inside IR35	£620/day	London · Remote	6 months BPSS clearance	18 days ago
Front Office .Net Developer High-performing Commodities Trading team C# .NET Agile Azure Angular +7 more	Inside IR35	£600–£700/day	London	6 months	22 days ago
Senior .NET Developer Global Markets collateral business C# .NET REST APIs Angular JavaScript +3 more	Inside IR35 (implied)	£700–£750/day	Bromley · Hybrid	12 months	29 days ago
C# Software Engineer Leading organisation within the defence and security sector C# .NET Object-oriented programming Test automation CI/CD +2 more	Inside IR35	£585/day £78/hr	Luton · Hybrid	12 months SC clearance	35 days ago
Automation Application Developer Banking sector C# UiPath / RPA Agile .NET SQL +7 more	Inside IR35	£400–£440/day	London · Hybrid	7 months	35 days ago
C# Software Engineer Market-leading Defence and Aerospace company C# C++ Agile CI/CD Test-driven development +4 more 3 adverts	Inside IR35	£488/day £65/hr	Stevenage	12 months SC clearance	39 days ago
Agentic AI Engineer, .NET, C# Global technology leader, NASDAQ listed C# Agentic AI .NET ASP.NET LLMs / generative AI +2 more 2 adverts	Inside IR35	£450–£525/day	Bristol · Hybrid	6 months	40 days ago
Senior C# Developer Global Markets technology team at a financial services firm C# Agile Scrum SQL CI/CD +5 more	Inside IR35	Not stated	London · Hybrid	6 months	42 days ago

Contracts come from job boards and employers' own careers sites, updated hourly. IR35 status is as stated in each advert: always confirm it with the hirer.

Inside IR35 C# contracts

Selected filters

13 contracts found

SmartCOMM DeveloperRemote

C# .NET DeveloperHybrid

Microsoft Office Add-In Developer (.NET/C#)

AI Platform EngineerRemote

Senior Software EngineerOn site

Azure Engineer - Cloud Native ApplicationsRemote

Front Office .Net Developer

Senior .NET DeveloperHybrid

C# Software EngineerHybrid

Automation Application DeveloperHybrid

C# Software Engineer

Agentic AI Engineer, .NET, C#Hybrid

Senior C# DeveloperHybrid