IR35.org

Solution architecture contracts in London

25 open Solution architecture contracts in London, typically £540–£725 a day.

Open contracts
25
Typical day rate
£540–£725Median £650, from 23 contracts stating a rate
Outside IR35
24%of the 17 that state a status

At the median £650 a day over 220 working days, you'd take home about £82,962 a year outside IR35, or £77,965 inside IR35. Work out your own take-home pay

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25 contracts found

  1. Lead Solutions Architect (Legacy to Cloud)Remote

    Large, complex organisation

    £500–£800/dayInside IR35

    London · 6 months · SC clearance · Posted 5 days ago

    • Solution architecture
    • Cloud architecture
    • Migration
    • Java
    • Oracle Database
    • +6 more
  2. Senior Product ArchitectHybrid

    Known organisation

    £550/dayInside IR35

    London · 6 months · Posted 5 days ago

    • Solution architecture
    • Agentic AI
    • RAG (retrieval-augmented generation)
    • LangChain
    • Natural language processing
    • +7 more
  3. Source to Pay Solution ArchitectRemote

    Housing organisation

    £450–£488/dayOutside IR35

    London · 3 months · Posted 5 days ago

    • Solution architecture
    • Azure
    • Stakeholder management
  4. Payments Solutions ArchitectHybrid

    Major financial services organisation

    £700–£1,000/dayIR35 not stated

    London · 12 months · Posted 7 days ago

    • Solution architecture
    • Event-driven architecture
    • REST APIs
    • Microservices
    • Enterprise architecture
  5. Salesforce Technical Architect

    £500–£550/dayIR35 not stated

    London · Posted 8 days ago

    • Solution architecture
    • Salesforce
    • CI/CD
    • Git / GitHub
    • Release management
    • +1 more
  6. Solution Architect (Bloomreach SME)Remote

    Large UK healthcare organisation

    £580/dayInside IR35

    South East London · 6 months · BPSS clearance · Posted 10 days ago

    • Solution architecture
  7. Solution ArchitectRemote

    DWP

    £650/dayIR35 not stated

    London · SC clearance · Posted 10 days ago

    • Solution architecture
  8. Solution Architect - Platform, Event, Domain Driven

    Major technology modernisation programme

    £650–£750/dayIR35 not stated

    London · 6 months · Posted 12 days ago

    • Solution architecture
    • Cloud architecture
    • AWS
    • Microservices
    • Event-driven architecture
    • +4 more
  9. 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

    • Solution architecture
    • Azure
    • Distributed systems
    • Agile
    • PowerShell
    • +7 more
  10. Identity ArchitectHybrid

    Large-scale transformation programme

    £495/dayInside IR35

    London · 3 months · Posted 13 days ago

    • Solution architecture
    • Identity and access management (IAM)
    • Stakeholder management
    • Requirements gathering
    • PMO
    • +1 more
  11. EU Finance Architect & IT LeadHybrid

    Leading organisation in the banking sector

    £750/dayInside IR35 (implied)

    London · 12 months · Posted 15 days ago

    • Solution architecture
    • Oracle ERP / Fusion
    • SQL
    • Jira / Confluence
    • ServiceNow
    • +2 more

    2 adverts

  12. Lead Enterprise Architect (AI)

    Organisation operating in fast-evolving AI landscape

    £800–£1,200/dayIR35 not stated

    London · Posted 18 days ago

    • Solution architecture
    • Enterprise architecture
    • Cloud architecture
    • AWS
  13. Oracle AI Functional ArchitectRemote

    Vbeyond

    Rate not statedIR35 not stated

    London · Posted 20 days ago

    • Solution architecture
    • Oracle ERP / Fusion
    • LLMs / generative AI
    • Agentic AI
    • REST APIs
    • +2 more

    Direct from employer

  14. AI ArchitectHybrid

    Major transformation programme

    £550–£570/dayOutside IR35

    London · 6 months · Posted 20 days ago

    • Solution architecture
    • Power Platform
    • Power Apps
    • Stakeholder management
  15. Head of TechnologyHybrid

    Leading national organisation

    Rate not statedInside IR35

    London · 3 months · Posted 22 days ago

    • Solution architecture
    • Enterprise architecture
    • Cyber security
    • Vendor management
  16. Technical Product Manager - Wealth, AssetMGT, SoftwareHybrid

    Major digital transformation programme in wealth management or asset management

    £625–£750/dayInside IR35

    London · 35 months · Posted 22 days ago

    • Solution architecture
    • Product management
    • Requirements gathering
    • Agile
    • Cloud native
  17. SAP Technical ArchitectRemote

    Specialist SAP Integration Enablement team

    £600–£625/dayInside IR35

    London · 6 months · BPSS clearance · Posted 25 days ago

    • Solution architecture
    • SAP
    • API testing
    • CI/CD
    • DevOps
  18. Mobile ArchitectHybrid

    Retail bank

    £800–£900/dayOutside IR35

    London · 2 months · Posted 25 days ago

    • Solution architecture
    • iOS
    • Swift
    • Android
    • Kotlin
    • +5 more
  19. Security EngineerHybrid

    Large enterprise

    £670–£680/dayInside IR35

    London · 6 months · Posted 32 days ago

    • Solution architecture
    • Stakeholder management
    • Security architecture
    • Infrastructure
    • Observability / monitoring
    • +1 more
  20. Bloomreach ConsultantRemote

    Large UK healthcare organisation

    £580/dayInside IR35

    London · 6 months · BPSS clearance · Posted 32 days ago

    • Solution architecture
    • Stakeholder management
    • Migration
    • Information architecture
    • Agile

    2 adverts

  21. Information Security OfficerHybrid

    Not named in advert

    £450/dayInside IR35

    London · 6 months · Posted 32 days ago

    • Solution architecture
    • Risk management
    • Stakeholder management
    • Cyber security
    • Cloud security
    • +10 more

    2 adverts

  22. Oracle Procurement CloudOn site

    Infoplus Technologies UK Limited

    £500–£550/dayIR35 not stated

    London · Posted 33 days ago

    • Solution architecture
    • Procurement
    • Requirements gathering
    • Stakeholder management
    • Workshop facilitation
    • +5 more

    Direct from employer

  23. Lead Enterprise ArchitectRemote

    Financial services organisation

    £700–£800/dayInside IR35

    London · 6 months · Posted 39 days ago

    • Solution architecture
    • Enterprise architecture
    • Stakeholder management
    • Technical architecture
  24. Enterprise ArchitectHybrid

    UK regulated bank specialising in cross-border payments and FX into emerging and frontier markets

    Up to £700/dayOutside IR35

    London · Posted 42 days ago

    • Solution architecture
    • Enterprise architecture
    • AWS
    • Cloud architecture
    • Event-driven architecture
    • +6 more
  25. Solution ArchitectHybrid

    Insurance firm

    £950/dayInside IR35

    London · 9 months · Posted 62 days ago

    • Solution architecture
    • Insurance
    • Migration
    • DevOps
    • Infrastructure

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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