4 python developer jobs found in London

Senior Developer – Front Office RAD / Trader Tools £700 p/day | Outside IR35 | Largely remote | 12-month contract We are hiring a hands-on Senior Developer for a prestigious investment banking client, delivering tactical fixes and enhancements directly for front-office traders. This role suits someone who thrives in a RAD/tactival environment : quick to understand a problem, comfortable with changing priorities and able to deliver practical, reliable solutions at pace. The focus is on short development cycles, immediate business needs and improving existing trading tools , rather than a long-term strategic programme. Initial work will support Securities Lending , with opportunities to work across other trading desks. What we’re looking for: Strong development experience in C#, Python and Excel Proven experience in front-office RAD or tactical development A quick-thinking, pragmatic problem solver who can work independently Confidence working...

Senior Developer - Front Office RAD/Trader Tools £700 p/day | Outside IR35 | Largely remote | 12-month contract We are hiring a hands-on Senior Developer for a prestigious investment banking client, delivering tactical fixes and enhancements directly for Front Office traders. This role suits someone who thrives in a RAD/tactival environment: quick to understand a problem, comfortable with changing priorities and able to deliver practical, reliable solutions at pace. The focus is on short development cycles, immediate business needs and improving existing trading tools, rather than a long-term strategic programme. Initial work will support Securities Lending, with opportunities to work across other trading desks. What we're looking for: Strong development experience in C#, Python and Excel Proven experience in Front Office RAD or tactical development A quick-thinking, pragmatic problem solver who can work independently Confidence working directly with traders to...

Join a growing software team developing technology that supports cutting-edge scientific innovation. We 're looking for a Senior Software Test Engineer (not a QA Tester) 6 month contract (outside IR35) with strong experience in test automation, software engineering and CI/CD environments. As Senior Software Test Engineer Experience Reuired: Experience as a Software Test Engineer, SDET or Automation Test Engineer Strong Python, C# or Java skills Experience building and maintaining automated test frameworks Integration, system and regression testing experience Experience working closely with software developers in Agile teams CI/CD, Git, Azure DevOps, Jenkins or similar tools Ideal backgrounds: Scientific instrumentation, biotech, medtech, robotics, aerospace, defence, telecoms or software product companies. This is a hands-on engineering role focused on automating quality, not a traditional manual QA position. Permanent and contract...

CONTRACT AI SOFTWARE ENGINEER - OUTSIDE IR35 - SC Cleared NEW CONTRACT OPPORTUNITY AVAILABLE Rate: Up to £600 per day Location: London / Remote-first Working Pattern: Part-time, 2-3 days per week; predominantly remote with occasional London workshops Contract Length: 3 months initially, with extension likely IR35 Status: Outside IR35 Start Date: 19th October 2026 (subject to availability) I 'm currently working with an organisation delivering innovative AI and data solutions within the UK public sector, who are looking for an experienced AI Software Engineer to join an initial 3-month engagement on a part-time basis. This is an opportunity to help shape how a new public sector organisation operates using AI from the outset, combining hands-on engineering with the design of AI-enabled workflows, governance and operating models. THE ROLE You 'll work as part of a collaborative engineering team, helping design and build...