Top Python Developer Jobs in London

Design and develop software solutions, analyze complex problems, and provide support for trading activities in a dynamic environment.

Lead a Python engineering team, guiding technical solutions, tackling challenges, managing technical debt, and ensuring software quality while fostering a high-performing culture.

Develop and scale APIs, web services, and internal content systems for high-traffic public-facing radio products. Collaborate in cross-functional teams, write tests, follow CI practices, and apply sound software engineering principles while learning new technologies.

Collaborate with traders and researchers to design and build robust data systems for trading analysis in a fast-paced environment.

Join the Front Office R&D team to design and maintain Python libraries and frameworks, provide production support, and enhance system reliability.

Build and maintain Python tools for web scraping, automation, integrations (Airbnb, marketplaces), ad automation, chatbots (Chatwoot), workflow automation (Spiffworkflow), automated tests, and data analysis.

As a Lead Python Engineer, you'll oversee technical direction, mentor a small team, and develop data pipelines and services while driving architectural discussions.

Develop, maintain, and optimize counterparty credit risk applications; enhance CI/CD pipelines; expand and run unit/regression/integration tests; profile performance/memory; document systems; integrate quant model updates; support cloud transition and act as SME for stakeholders.

Build and maintain backend services and APIs for a fintech platform using modern Python tools. Design scalable, secure systems, integrate third-party services, implement async and event-driven workflows, investigate distributed system issues, contribute to architecture and code quality, and mentor peers in a collaborative product team.

Build and maintain scalable backend services, APIs and data pipelines to support AI/ML models and analytics. Integrate cloud platforms and Snowflake, deliver production services, and collaborate with data scientists and product teams to deploy data-driven features.

Seeking a Senior Software Engineer for the Beacon Core Engineering team to design, build, deploy, and maintain software tools and assist clients using AI agents, focusing on quality code and collaboration.

As a Software Engineer at Landytech, you will develop and maintain APIs for financial metrics, optimize systems, and collaborate with the team on scalable data solutions.

The Python Engineer will write maintainable Python software, lead technical initiatives, collaborate globally, and contribute to community engagement at Canonical.

As a Python Developer at Lyst, you'll tackle challenges in product development, working with a team to enhance user experience and handle data ingestion and payment systems.

Build and maintain scalable backend APIs and microservices with Python and FastAPI; develop data engineering pipelines; integrate and optimize data access with Snowflake and AWS; support production deployment of AI/ML features and collaborate across the Global:IQ team to deliver AI-enabled product outcomes.

Python Developers will design and evaluate coding tasks, focusing on bug resolution, feature implementation, and testing. They will also review peer submissions and ensure code quality.

Develop, debug, and maintain Python 3 code for serverless AWS services (Lambda, S3, SQS, SAM). Build HTTP APIs and event-driven systems, work with relational databases, use CI/CD, Git/GitHub, Jira/Confluence, and apply TDD/BDD while collaborating with remote teams across time zones.

The Principal Software Engineer will architect AI-enabled platforms, mentor senior engineers, and lead cross-team architectural discussions, with a focus on secure, scalable solutions on AWS.

Design, build, and operate backend services and APIs across the full SDLC. Implement, test, deploy, monitor, and support production systems on AWS. Collaborate with engineers, product, and data scientists to deliver reliable, data-focused solutions and communicate technical trade-offs to stakeholders.

Build and maintain scalable Python backend microservices: productionize data science prototypes, fix production issues, improve monitoring, and ensure tested, well-documented code following engineering best practices.

The C++ Developer will design and implement trading systems, focusing on performance, testing, and collaboration with teams, primarily using C++ and Python.

Build and maintain Python services that automate finance and operations workflows. Deliver features end-to-end, write tests, participate in code review, support production systems, collaborate with Finance/Operations stakeholders, and grow ownership of components toward senior responsibility.

Design, build, and maintain scalable infrastructure automation for algorithmic trading. Act as Linux platform SME, provide technical leadership to a small team, mentor engineers, collaborate with development and enterprise teams, drive SRE practices (post-mortems, CI/TDD), and own components across their lifecycle.

You will prototype and develop new features for cybersecurity products, collaborate with cross-functional teams, and improve existing platforms while embracing innovation.

The Core Developer will focus on creating and maintaining systems for trading activities, including data capture, reconciliation, and automated settlement, primarily using Python and some C++.