IR35.org

Test-driven development contracts

15 open Test-driven development contracts, typically £490–£725 a day.

Open contracts
15
Typical day rate
£490–£725Median £575, from 13 contracts stating a rate
Outside IR35
20%of the 10 that state a status

At the median £575 a day over 220 working days, you'd take home about £77,724 a year outside IR35, or £72,513 inside IR35. Work out your own take-home pay

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15 contracts found

  1. .NET and C# DeveloperHybrid

    Specialist company in Nottingham

    £500–£600/dayIR35 not stated

    Nottingham · 6 months · Posted 54 days ago

    • Test-driven development
    • C#
    • .NET
    • ASP.NET
    • AWS
    • +9 more

    2 adverts

  2. C# Software Engineer

    Market-leading Defence and Aerospace company

    £488/day£65/hrInside IR35

    Stevenage · 12 months · SC clearance · Posted 39 days ago

    • Test-driven development
    • C#
    • C++
    • Agile
    • CI/CD
    • +4 more

    3 adverts

  3. Senior .NET DeveloperHybrid

    Global Markets collateral business

    £700–£750/dayInside IR35 (implied)

    Bromley · 12 months · Posted 29 days ago

    • Test-driven development
    • C#
    • .NET
    • REST APIs
    • Angular
    • +3 more
  4. Senior Full Stack DeveloperHybrid

    Banking

    £500–£700/dayInside IR35

    London · 9 months · Posted 27 days ago

    • Test-driven development
    • Kotlin
    • React
    • TypeScript
    • Java
    • +4 more
  5. Software EngineerHybrid

    UK Government public sector client

    £375–£415/dayIR35 not stated

    Scotland · SC clearance · Posted 26 days ago

    • Test-driven development
    • AWS
    • Java
    • REST APIs
    • Node.js
    • +5 more
  6. Scrum MasterHybrid

    Financial services organisation

    Rate not statedIR35 not stated

    Manchester · 12 months · Posted 25 days ago

    • Test-driven development
    • Scrum
    • Agile
    • CI/CD
  7. Software Engineering ManagerHybrid

    Leading UK wealth and investment platform

    £700–£750/dayIR35 not stated

    London · 6 months · Posted 20 days ago

    • Test-driven development
    • TypeScript
    • Java
    • AWS
    • Microservices
    • +2 more
  8. Embedded Software EngineerHybrid

    World leader in missile and missile systems

    £525/day£70/hrInside IR35

    Bristol · 6 months · Posted 20 days ago

    • Test-driven development
    • C++
    • Embedded systems
    • Linux
    • Jira / Confluence
  9. JWT/JSON DeveloperHybrid

    Leading UK financial services organisation

    £600–£650/dayOutside IR35

    London · 6 months · Posted 20 days ago

    • Test-driven development
    • OAuth 2.0 / OIDC
    • Cryptography / PKI
    • Git / GitHub
    • CI/CD
    • +2 more
  10. Senior Machine Learning EngineerHybrid

    Guidant Global

    £700–£900/dayInside IR35

    London · SC clearance · Posted 18 days ago

    • Test-driven development
    • Machine learning
    • MLOps
    • Python
    • Deep learning
    • +3 more

    2 adverts

  11. Senior Full Stack .NET DeveloperRemote

    Global SaaS platform

    £400–£450/dayOutside IR35

    Posted 17 days ago

    • Test-driven development
    • C#
    • .NET
    • ASP.NET
    • Vue.js
    • +3 more
  12. Head of Technical Architecture - AI

    Major, high-profile UK public sector organisation

    £750–£850/dayInside IR35

    London · 6 months · BPSS clearance · Posted 14 days ago

    • Test-driven development
    • Technical architecture
    • Agile
    • Stakeholder management
    • Cloud native
    • +6 more
  13. PHP Software EngineerRemote

    Fast growing SaaS business

    Rate not statedIR35 not stated

    Berkshire · 12 months · Posted 13 days ago

    • Test-driven development
    • PHP
    • REST APIs
    • HTML / CSS
    • JavaScript
    • +9 more
  14. Java EngineerHybrid

    Major public sector digital transformation programme

    £350–£500/dayInside IR35

    SC clearance · Posted 13 days ago

    • Test-driven development
    • Java
    • Spring / Spring Boot
    • Microservices
    • REST APIs
    • +3 more
  15. Senior Full Stack EngineerOn site

    Established product with AI capabilities

    £550–£600/dayInside IR35

    London · 6 months · Posted 6 days ago

    • Test-driven development
    • TypeScript
    • React
    • Node.js
    • REST APIs
    • +5 more

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.

Disclaimer: calculations are estimates only and not financial or tax advice. See the terms.

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