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Be ready for Python coding (data structures, APIs), system design at a modest scale, testing habits, and clear talk-throughs of past production work. Expect questions on debugging and collaboration in London time-zone teams.
Strong fit if you ship clean Python, like backend or full-stack delivery, and want an on-site/hybrid London role listed via Selby Jennings—not a remote-first post.
As a Python Software Engineer with Selby Jennings London, expect day-to-day work designing, writing, and reviewing Python services or tools; collaborating with product and engineering partners; and shipping reliable changes from a London-based setup (office or hybrid as posted, not remote).
Free and low-friction paths that match this Software Developers family:
The listing marks remote as no; plan for London-based work unless the employer states otherwise.
Solid Python, APIs, and tests; then free paths like freeCodeCamp, Saylor CS, CS50, or Microsoft Learn.
The posting names Selby Jennings London; confirm whether they are the hiring company or a search partner during apply.
PYTHON SOFTWARE ENGINEER | QUANT TRADING — Selby Jennings London, London, UK About the Role This role is for a Python Software Engineer to join a technology-driven trading firm in London. The successful candidate will be part of a growing team developing and running systematic and market-making strategies across multiple asset classes using a sophisticated in-house technology platform. Your Responsibilities Develop, maintain, and optimize high-performance Python code for real-time pricing, execution, and risk management systems. Collaborate with cross-functional teams to design and implement robust solutions for complex trading strategies. Contribute to the continuous improvement of the in-house technology platform by identifying and addressing technical challenges. Ensure compliance with best practices in software development, including code reviews and documentation. What You Bring A minimum of 3 years of experience as a Python Software Engineer or similar role. Strong proficiency in Python programming language, along with knowledge of related libraries and frameworks. Experience working on high-frequency trading systems or other performance-critical applications is highly desirable. Excellent problem-solving skills and ability to work independently within a team environment. About the Company Selby Jennings London is a technology-driven trading firm operating across global financial markets. Their in-house technology platform supports systematic and market-making strategies, enabling real-time pricing, execution, and risk management for multiple asset classes. The company values innovation and collaboration, fostering an environment where engineers can contribute to the development of cutting-edge trading solutions. Next Steps To apply, complete your application directly on this page, or you'll be redirected to the employer's application platform to finish submitting there.
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