IR35.org

Distributed systems contracts in London

7 open Distributed systems contracts in London, typically £460–£650 a day.

Open contracts
7
Typical day rate
£460–£650Median £575, from 7 contracts stating a rate
Outside IR35
0%of the 3 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

See new contracts 24 hours earlier

Members get immediate access to the client, location and original job advert. Full details become available to everyone after 24 hours.

Get early access
Skip to results

7 contracts found

  1. Senior C# Backend EngineerHybrid

    Technology-led organisation investing in next-generation platform

    £550–£650/dayIR35 not stated

    London · Posted 18 days ago

    • Distributed systems
    • C#
    • OAuth 2.0 / OIDC
    • Identity and access management (IAM)
    • Microservices
    • +5 more
  2. Senior Developer Consultant (iPaaS & Automation)Hybrid

    Fast-paced transformation programme in secure enterprise environment

    £495/dayIR35 not stated

    London · 3 months · SC clearance · Posted 13 days ago

    • Distributed systems
    • Azure
    • Agile
    • PowerShell
    • Infrastructure
    • +7 more
  3. Solution Architect - Platform, Event, Domain Driven

    Major technology modernisation programme

    £650–£750/dayIR35 not stated

    London · 6 months · Posted 12 days ago

    • Distributed systems
    • Solution architecture
    • Cloud architecture
    • AWS
    • Microservices
    • +4 more
  4. Database EngineerHybrid

    Enterprise using traditional relational and NoSQL databases

    Up to £300/dayUp to £40/hrInside IR35

    London · 24 months · Posted 12 days ago

    • Distributed systems
    • SQL Server
    • PostgreSQL
    • MongoDB
    • NoSQL
    • +1 more
  5. Google Cloud Platform (GCP) ArchitectOn site

    Big Four consulting firm for a Tier 1 bank

    £400–£450/dayInside IR35

    London · 6 months · Posted 7 days ago

    • Distributed systems
    • Cloud architecture
    • Google Cloud (GCP)
    • Kubernetes
    • Python
    • +3 more
  6. MLOps Engineer (Recommendation Systems)Hybrid

    Well-established online business investing in machine learning and AI

    £500–£650/dayInside IR35

    London · 6 months · Posted 5 days ago

    • Distributed systems
    • MLOps
    • Machine learning
    • Python
    • Deep learning
    • +6 more

    2 adverts

  7. Platform Architect (Retail Media Platform)

    Members only for 2 hours

    £700–£800/dayIR35 not stated

    London · Posted today

    • Distributed systems
    • Data architecture
    • Stakeholder management
    • Service design
    • Design patterns
    • +2 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.

Copyright © 2026 IR35.org. All rights reserved.