Top Python Jobs in London

Work directly with customers to design, deploy, and extend Condukt solutions: scope integrations, build custom tools, configure and optimize production systems, troubleshoot and improve performance, and feed customer insights back into product and engineering.

Contract role to automate and execute functional tests for a desktop application using Squish. Develop and maintain test automation scripts (Perl/Bash/Python), collaborate within an R&D/semiconductor team, and contribute to test strategy and execution in a fast-learning environment. Based in Central London (rolling contract).

Design, write and maintain automated Selenium web test suites, create test plans, improve CI pipelines, oversee deployments and releases, and mentor junior SDET engineers.

As an AI/ML Software Engineer, you'll develop systems that transform audio and video data into structured insights, focusing on prompt engineering, agent systems, and model optimization.

Identify vulnerabilities in Apple platforms using static and dynamic analysis; develop proofs-of-concept and tooling; use fuzzers, LLMs and reverse-engineering toolchains; reverse engineer ARM64 binaries; document and present findings; attend training and conferences to refine skills.

Embed with customer teams to map how work actually happens, scope and run AI deployments from data pulls to measured results, prototype with users, manage stakeholders, and feed actionable findings to product and engineering.

Lead pricing implementation and BAU delivery for the rating engine: gather requirements, design and build pricing algorithms in Python/SQL, run testing and pre-release activities, provide data-driven insights, document pipelines, and mentor pricing engineers while driving process and team development.

Develop, implement and calibrate derivatives pricing models for energy markets (gas, preferably power). Collaborate with trading, structuring, quant dev and quant risk to deliver C++ libraries and Python services for pricing, risk, backtesting and parameter estimation.

Design, build, and scale IoT hardware for the Energy Network, ensuring secure connectivity, device security, and integration with cloud services.

Join the Helix StatArb team to develop, maintain, and support high-performance quantitative trading systems. Work on large-scale data processing, statistical modeling, portfolio construction, execution monitoring, and DAG-based concurrent data frameworks. Collaborate with researchers, own system components, and participate in live trading support and rota duties to ensure robust, scalable production trading infrastructure and improved execution quality.

Depop seeks a Senior Machine Learning Engineer for the Ranking team to develop and maintain machine learning systems for personalized rankings. Responsibilities include designing training pipelines, collaborating with ML scientists, and optimizing model serving systems.

As a Product Engineer, you'll design and build impactful AI-driven products, collaborating closely with teams to shape solutions and manage end-to-end responsibilities.

As an AI Engineer, you'll conduct research on AI agents, develop LLM applications, and design backend infrastructure with strong focus on cognitive systems and agent development.

As a Full-Stack Engineer at Electric Twin, you will build and evolve complex systems and user interfaces, emphasizing thoughtful engineering across the full stack, from front to backend.

As a Forward Deployed Engineer, you will collaborate with customers to analyze data and shape product development based on insights, while building strong relationships in the manufacturing sector.

The Partner Deployed Engineer at Cognition will enable services partners to deploy and scale AI solutions, driving technical success and partner enablement through trainings and support for complex integrations.

Drive customer discovery and delivery using the Cogna platform: engage clients, map processes, define and deploy bespoke software solutions, train and support users, collect feedback, and iterate to improve outcomes across utilities, energy, manufacturing, and construction.

Build marketing automation, analytics and content systems: consolidate data into dashboards, automate sales materials and content workflows, implement SEO/GEO and lead enrichment, monitor signals, and connect leads to a lightweight CRM. Ship repeatable, automated solutions using code, APIs or no-code tools.

Lead BAU and strategic pricing implementation projects: gather requirements, design optimized solutions, develop and test pricing algorithms (Python/SQL), manage pre-release activities, document pipelines, provide data-driven insights, mentor and recruit pricing engineers, and drive process improvements.

Join the Specialty Finance & Fintech Investment Team to build and underwrite short-duration credit portfolios. Responsibilities include developing cash-flow credit models, underwriting whole loans and credit facilities, pricing and modeling securitizations (Intex or Python/Excel), conducting due diligence on originators, and preparing investor presentations.

As a Forward Deployed Engineer, you will work closely with customers to design and build end-to-end workflows, integrating AI features and deploying systems from day one.

As the first data hire, you'll establish analytics to enhance product usage understanding and business decisions, while creating reports and models for retention and sales analysis.

Seeking an experienced Staff Engineer to design software solutions, lead architectural decisions, mentor junior engineers, optimize performance, and guide technical strategy.

Create high-end photoreal CGI, VFX and AI-enhanced imagery by modelling, animating, simulating, texturing, lighting and rendering. Build and maintain generative AI workflows, write VEX and Python automation for Houdini, integrate 3D and AI assets into the post-production pipeline, and collaborate with the creative team to deliver scalable, luxury beauty content.

As a Lead Data Engineer, you will design and develop software for data processing, lead a team, ensure quality, and manage technical proposals.