python jobs in London

Paragon Alpha - Hedge Fund Talent Business in London is looking for a Quantitative Engineer to build data tools, models and infrastructure for PM teams. You will work on cloud-based, data-heavy applications and interfaces with PMs and traders to tailor software solutions for trading strategies.The ideal candidate has exposure to commodities (Power, Energy,...

Reply is seeking a mid/senior-level AI Testing & Engineering Specialist with strong Python expertise to build a next-generation testing framework for generative AI agents, including evaluation pipelines, synthetic data, observability, and quality metrics for LLM-based systems.You will collaborate across AI engineering, data pipelines, and QA to design...

A systematic trading firm in London is hiring a Lead Python Infrastructure Automation Engineer. This is a senior developer role within the infrastructure team. You’ll take ownership of their existing Python tooling used to provision and manage a mostly bare-metal Linux estate, extend it independently, and build new automation where manual work still...

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. As a Lead Software Engineer at JPMorgan Chase within the AI/ML Data Platforms business, youare an integral part of a team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable...

Join us and take your software engineering career to new heights. You’ll have the opportunity to design and deliver market-leading technology products that shape the future of financial services. At J.P. Morgan, you’ll collaborate with talented teams, grow your skills, and make a real impact. We value your expertise and offer a dynamic environment where...

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level. As a Software Engineer at JPMorgan Chase within the AI/ML Data Platforms business, youare an integral part of a team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way. You...

We're enabling high-performing, rock-solid MongoDB deployments on any cloud or platform our customers choose. We want to create the world's best open source analog to MongoDB Altas or Amazon DocumentDB, which can be owned, controlled and operated by end-users on their own multi-cloud or on-premise environments.Canonical is looking for an experienced Python...

Oxford Knight is seeking a Python-focused Quantitative Researcher for a London-based latency team. You will analyze billions of trading data points and collaborate with trading teams to uncover actionable insights that drive infra and strategy.Ideal candidates have 2+ years in quantitative research, strong Python, ML, statistics, and optional C++/SQL...

Our client is seeking a Senior Software Developer – ETL PySpark (7+ years) to develop and maintain data platforms and pipelines using Python, PySpark, AWS EMR, and Oracle PL/SQLJoin a large-scale data platform initiative focused on delivering scalable public and private reporting products using modern technology stacks and Agile processes. This role...

World Wide Technology (WWT), a 36-year-old global technology integrator and IT solutions provider. Through our culture of innovation, we inspire, build, and deliver business results from idea to outcome. World Wide Technology (WWT) has an opportunity for a Python Developer to join a team building configuration management software for a large-scale private...

Legal Tech Graduate / Junior Opportunity | London | Up to £75k+I’m working with an exciting AI & Legal Tech business that is hiring multiple high-calibre STEM graduates and junior candidates (1–3 years’ experience) to join their growing team.They’re already working with one of the world’s biggest law firms and are on track for an impressive first...

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 include the world's leading public cloud and silicon providers,...

One of the world’s leading investment firms is continuing to expand its systematic and high-frequency trading capabilities. Technology is central to the business, supporting systematic Portfolio Managers and Researchers across multiple asset classes and strategies. You’ll be exposed to all aspects of systematic investing, with significant project...

This is an opportunity to join one of the world’s premier investment firms.The firm deploys systematic, computer-driven trading strategies across multiple liquid asset classes, including equities, futures and foreign exchange. You will be building components for both live trading and simulations as part of a trading pod.Requirements:Masters or PhD in...

As a Lead Software Engineer at JPMorganChase within the Commercial & Investment Bank (CIB) – Markets Technology (Rates Nonlinear), you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way. As a core technical contributor, you are responsible for...

London Stock Exchange Group in London is offering a Software Engineer Summer Internship for 12 weeks starting June 2027 within the Post Trade Solutions engineering team. You will work with experienced engineers on real projects and collaborate with the Product Development team to enhance services in the cloud using AWS, Python and the PyData stack.The role...

Oliver Bernard in London is seeking a Legal Tech Graduate / Junior candidate to join an AI & Legal Tech business at the forefront of innovation. The role blends coding, AI, legal research and technical analysis, with hands-on exposure to Python, SQL, Claude Code and GPT Codex.The position is in Central London with three days in the office, offering...

I'm working with a leading global proprietary trading firm that is seeking an experienced Software Engineer to join its Systematic Trading team in London.Working directly alongside quantitative researchers and traders, you'll help design and develop the full technology stack underpinning the firm's global trading operation. This spans trading systems, market...

The Quantitative Analyst is a strategic professional who stays abreast of developments within own field and contributes to directional strategy by considering their application in own job and the business. Recognized technical authority for an area within the business. Requires basic commercial awareness. There are typically multiple people within the...

**Senior Full Stack Engineer – Market Data Platforms (Python / gRPC / MongoDB)** We are seeking a Senior Full Stack Engineer to build and support market data platforms within a financial markets technology environment. The role focuses on developing end-to-end solutions across UI, APIs and data layers, supporting critical market data analytics,...