Python jobs in Croydon

Date live: 16/04/2026 Business Area: Corporate Digital Banking Area of Expertise: Technology Contract: Permanent Reference Code: JR-0000079083 Embark on a transformative journey as a Software Engineer/Python Developer . At Barclays, our vision is clear – To design, develop and improve software, util

About The Job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey . Position: Software Engineer Type: Contract Compensatio

Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our customers inclu

Lead Python Developer / Software Engineer London / WFH to £120k Are you a skilled Python Developer with team leadership experience? You could be progressing your career at a well-funded and profitable FinTech start-up. As a Lead Python Developer you'll head up a small, talented tech team to deliver

Quantitative trading firm is looking to hire a Junior Cyber Security Python Developer to join a high-performing security engineering team within a leading technology-driven environment. This is an excellent opportunity for an early-career engineer with strong Python skills and an interest in cyberse

Senior Python Developer / Software Engineer (Python SQL IaC AWS) London 12 month FTC to £180k Are you a data savvy Senior Python Developer with strong SQL skills and finance experience? You could be progressing your career in a hands-on Senior Python Developer role at a tech driven, global Asset Man

Role Summary Citadel Securities is a leading global market maker across a broad array of fixed income and equity securities. Our world-class capabilities position us to meet the liquidity demands of our diverse group of institutional clients in all market conditions. In partnering with us, our clien

About Us Machnet Medical Robotics (MMR), founded in 2020, is on a mission to revolutionise medical robotics. Our guiding principle is simple: innovation must improve patient outcomes, support clinicians without disrupting workflows, and empower healthcare staff rather than adding burden. MMR is a we

About Marex Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides comprehensive breadth and depth of coverage across fo

About Us Machnet Medical Robotics (MMR), founded in 2020, is on a mission to revolutionise medical robotics. Our guiding principle is simple: innovation must improve patient outcomes, support clinicians without disrupting workflows, and empower healthcare staff rather than adding burden. MMR is a we

About Marex Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides comprehensive breadth and depth of coverage across fo

Python Software Engineer | £80 - £90 We're working with a leading global investment banking powerhouse on this exciting opportunity. You will join their Equity Linked Technology team to revolutionize front-to-back automation for a multi-billion dollar Structured Notes business. This is a high-impact

Backend Python Engineer, AI & Data London / Remote (South East based, occasional travel to London) £45,000 - £55,000 DOE We are working with an exciting AI-first engineering firm in the enterprise retail and e-commerce space who are building some really interesting products across generative AI,

🎉 We've just raised a $60m Series B at a $685m valuation - read about it here ! 🎉 About Lawhive Our mission is to make the law accessible to everyone. The legal industry is built on technology and processes that haven’t been updated in hundreds of years - that's why we've reinvented the entire mod

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£90,000 - £120,000 /year

Senior Python Engineer / Developer (FastAPI Django) London to £120k Would you like to progress your career in a senior, hands-on role at a growing social media start-up? As a Senior Python Engineer you'll focus on building backend services and FastAPIs using Python as well as integrating LLMs and pa

Full Stack Desk Developer – London - 140k RJC is working a Full Stack Desk developer role for a global energy trading company based in London. Working as part of the Cross Commodity Trading Desk, they are looking for a developer to work closely with traders in a quant/full stack capacity The role de

Role: Python Backend Developer Skills: Python, Pydantic, PostgreSQL, Numpy, Pandas, Model: Hybrid Salary: up to £50,000 - 65,000 A Python Backend Engineer is needed to join growing software house in London who specialise in helping businesses reduce wasteful processes, costs and energy; and improve

Marex

About Marex Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides comprehensive breadth and depth of coverage across fo

Python Developer | £50 - £60 per hour We're working with a leading global financial technology partner at the forefront of Equities Derivatives innovation on this exciting opportunity. This is a high-impact role within the fastest-growing area of Equities Derivatives Technology, focusing on the soph

Core Developer (Python) - Algo Trading Firm - London - Up to £350k+ TC (DOE) One of London's most impressive Algo Trading firms is looking for Engineering Wizards to join their team in London. Having arguably one of the best technology teams in the world, the firm is in a stage of hypergrowth, looki