python developer jobs in London

Business Unit Commercial & Investment BankPosting Date 07/20/2026, 03:40 PMLocations 25 Bank Street, Canary Wharf, London, Greater London, E14 5JP, GBJob Schedule Full timeJob DescriptionJoin us to shape the future of equity derivatives trading through technology. You’ll partner closely with trading desks, technology teams, and Quantitative Research to...

Senior Software Developers/Engineers with Python, Terraform and Go Our Client is looking to recruit brilliant Software Developers/Engineers with upwards of 7 to 10 years solid proven track record of developing complex applications with Python coupled with Machine Learning and ideally Go. We’re looking to recruit initially 2 excellent Software Engineers to...

Talan UK is seeking a Web Application Developer to join a cross-functional team building modern Python-based web applications. You will work across Python services and React/Vite frontends, contributing to reliability, performance, and developer experience.In this hybrid London role, you’ll collaborate with engineering teams on CI/CD, observability,...

UBDS Group is seeking an experienced Senior Developer to deliver secure, modern digital products for Government and Defence. You will design, build, test and deploy cloud-based applications in AWS, collaborating with Architects, Product, Design and QA teams.You will develop using Python and JavaScript, work with PostgreSQL, APIs and integration patterns, and...

**Python Developer (Data Applications and AI Engineering)** **Contract:** 6 to 12 months (longer term available at a lower day rate)| UK based, fully remote | Outside IR35 | Start ASAP My client, a specialist consultancy within Data and AI is looking for a hands on Python developer to join its data science team, working with a client to build data...

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview The Analytical Calculation Engine (ACE) Development Team...

Join us and make a real impact in a high-energy front office role where your ideas shape the future of trading and investment strategies. You will collaborate with talented developers, quants, and traders, working on exciting projects that help clients implement their strategies. We value your expertise and offer opportunities for growth, learning, and...

Full-Stack Developer – React, Python, Oracle Database, and AI/GenAI Job Category: Full-Stack Development / Software Engineering Job Type: Full-Time Job Location: London Boundaryless is a boutique consulting firm, providing clients with deep expertise in advanced analytics & data forensics, agentic automation, and Artificial Intelligence solutions. We...

We are looking for a talented and experienced full stack developer with experience in Finance process within Investment banking for one of our global investment banking clients Primary task would be to Design and develop responsive, high-performance front-end applications using React 18 and TypeScript for trading desks and risk reporting teams. Build and...

Citigroup Inc. in London seeks a Senior Developer for Counterparty Credit Risk. You will develop and maintain the ACE production application using Python and C++ libraries, partnering with Quant and Front Office tech teams to integrate pricing models and workflows.Responsibilities include improving CI/CD, optimizing performance across asset classes,...

Boundaryless is a boutique consulting firm, providing clients with deep expertise in advanced analytics & data forensics, agentic automation, and Artificial Intelligence solutions. We operate around the world, with offices in seven countries: United Kingdom, France, The Netherlands, Switzerland, India, Sri Lanka, and the USA. Due to growing demand from...

Duration: Until December 15, Location: Hybrid (primarily remote; anticipated onsite 1–2 days per quarter, Toronto or Wtaerloo) As a Senior Software Engineer, this candidate will design, develop, and support modern cloud-native applications and data solutions on AWS. You will work across software engineering, data platforms, and DevOps practices to deliver...

**Company Description** Join Netcompany in leveraging technological innovations to foster societal transformation. Netcompany was awarded 5th position on the esteemed UK Top 50 Best Places to Work in the Glassdoor Employees’ Choice Awards for 2024. As one of the fastest growing technology companies, we are disrupting the marketplace and...

We are hiring Senior Snowflake Developer (dbt/Python/ETL/ELT -Credit Risk, Market Risk, Treasury, or Regulatory)Location: Hybrid 2-3 Days in London OfficeShould have Snowflake development experience in Banking or Financial Services, Snowflake (including CoCo & Streamlit), dbt (transformations & modelling), Python (automation/engineering), and SQL...

Netcompany is seeking a skilled Python developer to join our UK team in a hybrid role. You will contribute to the full software development lifecycle, crafting robust backend and frontend solutions while delivering high-quality code and collaborating closely with the team.You will work hands-on with Python, React/TypeScript, and AWS services in a greenfield...

Build intuitive user interfaces and APIs for Trovix products, working closely with our AI and product teams. You will work closely with a team of engineers, domain experts and regulated industry clients to deliver AI products that genuinely change how professionals work. This is not a research role - you will ship production features used daily by...

The Analytical Calculation Engine (ACE) Development Team is a group within Citi Financial Risk Technology, responsible for developing and implementing the applications used for derivatives credit risk and exposure calculations Firm‑wide. The team's primary focus is the development, testing, deployment, and maintenance of the production derivatives credit...

**Company Description** Join Netcompany in leveraging technological innovations to foster societal transformation. Netcompany was awarded 5th position on the esteemed UK Top 50 Best Places to Work in the Glassdoor Employees’ Choice Awards for 2024. As one of the fastest growing technology companies, we are disrupting the marketplace and...

Position Description At CGI, you'll help deliver secure, high-impact solutions that enable government agencies to tackle some of their most complex and mission-critical challenges. As a Python Software Engineer, you'll work with modern technologies to build secure, scalable and reliable systems that drive real-world outcomes. You'll collaborate with...

Python Engineer -Mid and Senior – 70-82k -A fast-growing digital team inside a major automotive financial services group is hiring a Senior Python Backend Engineer. You will build scalable services for its vehicle marketplace and a pipeline of new digital products for the wider group. Hybrid, central London.Office working: Tuesday and Thursday in Office in...