Radley James
Core Python Developer - (Prop Trading Firm)
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Core Python Developer
A global algorithmic trading firm operating across the digital asset markets is seeking a Core Python Developer to join a small, high-impact engineering team. The role sits at the heart of the business, contributing to systems that support trading, operations, quantitative research, and DeFi initiatives. You’ll work closely with traders, C++ engineers, researchers, and other internal teams to build reliable, scalable tools that drive decision-making and real-time execution.
You will work on platforms that capture and process large volumes of trading data from numerous exchanges, ensuring accurate, timely information flows through the organisation. You’ll help evolve real-time reconciliation systems, build internal GUIs used throughout the trading floor, and contribute to automated settlement pipelines for OTC counterparties. There will also be opportunities to shape the data infrastructure used daily by quantitative researchers for modelling and machine learning.
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Key Responsibilities
- Designing and developing systems that process and expose trading data from a wide range of exchanges
- Enhancing reconciliation, reporting, and alerting tools that run in real time
- Building internal GUIs and trader-facing applications used for monitoring and decision-making
- Contributing to automated settlement workflows for OTC trading partners
- Supporting and improving data platforms used for quantitative research and ML pipelines
Requirements
- At least 2 years of professional Python development experience
- Strong SQL knowledge, ideally with PostgreSQL
- Comfortable working within Linux environments
- Curiosity about crypto, market structure, or trading technology
- Experience with C++ is a plus but not required
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This role offers significant ownership and visibility, with the ability to impact key systems that support a global trading operation. The environment is collaborative, fast-paced, and non-hierarchical, with an emphasis on clean engineering and pragmatic problem-solving. The London office offers an engaging atmosphere with team events, breakout spaces, and flexible working arrangements. Competitive performance-based compensation, private health insurance, pension, and visa sponsorship with relocation support are available.
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