IR35.org

FastAPI contracts

9 open FastAPI contracts, typically £475–£525 a day.

Open contracts
9
Typical day rate
£475–£525Median £485, from 9 contracts stating a rate
Outside IR35
56%of the 9 that state a status

At the median £485 a day over 220 working days, you'd take home about £68,374 a year outside IR35, or £64,446 inside IR35. Work out your own take-home pay

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9 contracts found

  1. AI Engineer - LLM & Agentic SystemsHybrid

    Globally established data and information services business

    £600–£650/dayOutside IR35

    London · Posted 54 days ago

    • FastAPI
    • Machine learning
    • Agentic AI
    • Python
    • LangChain
    • +2 more
  2. Senior DeveloperHybrid

    Defence programme

    £600–£750/dayInside IR35

    London · 15 months · DV clearance · Posted 46 days ago

    • FastAPI
    • Python
    • React
    • TypeScript
    • REST APIs
    • +2 more

    2 adverts

  3. Senior AI EngineerHybrid

    Innovative, technology-led organisation

    £450–£475/dayOutside IR35

    London · 6 months · Posted 39 days ago

    • FastAPI
    • Python
    • Microservices
    • Git / GitHub
    • PostgreSQL
    • +11 more

    2 adverts

  4. Data Modelling SpecialistHybrid

    Leading financial services organisation

    £484/dayInside IR35 (implied)

    Glasgow · 12 months · Posted 33 days ago

    • FastAPI
    • Python
    • SQL
    • REST APIs
    • Data modelling
    • +3 more
  5. Infrastructure Python DeveloperHybrid

    HSBC

    £400/dayInside IR35

    Sheffield · Posted 32 days ago

    • FastAPI
    • Python
    • Docker
    • Kubernetes
    • CI/CD
    • +5 more
  6. Senior Threat Modelling & Application Security EngineerHybrid

    Major organisation

    £450–£500/dayInside IR35

    London · 6 months · Posted 32 days ago

    • FastAPI
    • Cyber security
    • Python
    • Cloud security
    • Docker
    • +12 more

    2 adverts

  7. Senior Python DeveloperHybrid

    Engineering team

    £500–£550/dayOutside IR35

    Bristol · 6 months · Posted 27 days ago

    • FastAPI
    • Python
    • MySQL
    • pandas
    • Git / GitHub
    • +1 more
  8. Mid Python DeveloperRemote

    £450–£500/dayOutside IR35

    Bristol · 6 months · Posted 27 days ago

    • FastAPI
    • Python
    • MySQL
    • pandas
    • Git / GitHub
    • +1 more
  9. AI ConsultantRemote

    Microsoft-focused consultancy

    £500/dayOutside IR35

    6 months · Posted 12 days ago

    • FastAPI
    • LLMs / generative AI
    • Azure
    • Python
    • REST APIs
    • +4 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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