Senior Python Developer

OpenSource • United Kingdom
Remote
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AI Summary

Senior Python Developer role for a fintech company in London. The ideal candidate will have strong professional experience in Python 3.10+, experience integrating with exchange or trading APIs, and comfort using AI coding tools like Claude Code. The role is a sole-contributor engagement with minimal oversight.

Key Highlights
Sole-contributor role
Independent decision-making
Fully remote working
Key Responsibilities
Building and delivering a Python based project end-to-end
Integrating with exchange APIs and external data sources
Leveraging AI tooling to accelerate delivery and maintain quality
Technical Skills Required
Python 3.10+ Claude Code Exchange or trading APIs
Benefits & Perks
Up to £500 per day
3 months initial contract with extension possible
Outside IR35
Nice to Have
Fintech or trading domain knowledge
Experience delivering projects under tight timelines as an individual contributor

Job Description


About the Company


A fintech company based in London is looking for a Senior Python Developer on an initial 3-month contract, with potential to extend.


About the Role


This is a sole-contributor role; you'll be the only developer on the project, so the ability to move fast and make good independent decisions is essential. The client is open to fully remote working, with monthly visits to the Hammersmith office when required.


Responsibilities


  • Building and delivering a Python based project end-to-end, working independently with minimal oversight.
  • Integrating with exchange APIs and external data sources.
  • Leveraging AI tooling, specifically Claude Code, to accelerate delivery and maintain quality as a team of one.


Qualifications


Must-haves

  • Python 3.10+ with strong professional experience.
  • Proven ability to work independently and deliver at pace, this is a sole-contributor engagement.
  • Experience integrating with exchange or trading APIs.
  • Comfortable using AI coding tools (Claude Code experience or strong interest specifically called out by the client).


Nice-to-haves

  • Fintech or trading domain knowledge.
  • Experience delivering projects under tight timelines as an individual contributor.


Pay range and compensation package


Rate: Up to £500 per day

Duration: 3 months initial, extension possible

IR35 status: Outside IR35


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