python jobs in London

McGregor Boyall is seeking a Python Developer with strong Market Risk knowledge to join a London-based risk technology initiative. You will design, build and enhance scalable risk applications used by risk managers across multiple asset classes, including equities, FX, fixed income, and mortgages.The role involves working on a greenfield platform,...

La Fosse is seeking a Senior Software Engineer to join a government-focused AWS/Python/Terraform environment on a contract basis. The role spans DevOps automation, cloud engineering and software delivery, requiring hands-on AWS, Terraform, Python, and CI/CD expertise.You will design, build and automate secure AWS cloud environments, develop IaC with...

Intec Select Ltd. is seeking a Full Stack Developer to join their London-based technology team on a hybrid, contract basis.The role focuses on building customer-facing and internal platforms with a Python backend and modern JavaScript frontend, working across the full stack. The ideal candidate will have strong Python (Django/Flask) and JavaScript/TypeScript...

JPMorgan Chase & Co. in London seeks a Data Engineer to design and deliver scalable data pipelines and architectures. You will work in an agile team to collect, store, and analyze data securely, enabling business functions with reliable data services.The role emphasizes AI-assisted validation, data sensitivity awareness, and governance across the data...

Permutable is hiring an experienced Data Platform Engineer to build real-time data pipelines and own the AWS infrastructure that runs them. You'll design Python services to ingest and transform large data volumes, while scaling S3, RDS/PostgreSQL, Lambda, ECS and EKS for fast, reliable delivery to models and clients.You'll work in a small, fast-moving team...

JPMorgan Chase in London seeks a Lead Software Engineer to enhance network data services with Python applications, cloud integration, and secure, scalable solutions. You will be a core technical contributor shaping architecture and driving enterprise standards across multiple business functions.The role emphasizes AI-assisted development, automated testing,...

Senior Software Engineer - AWS/Python/TerraformActive SC or DV Clearance Required | Government Programme | Contract | Inside IR35Location: UK - hybrid/remote working, subject to project and security requirementsSecurity Clearance: Current SC, enhanced SC or DV clearance is mandatoryEngagement: Contract - Inside IR35Sector: Government/Defence/National...

eFinancialCareers is hiring an AI Labs Software Engineer in London. The role focuses on building Agentic AI solutions using Python, AWS, LangChain, and LangGraph within a finance-focused AI labs team. You will work with a manager and technical lead, delivering end-to-end projects and presenting solutions to clients.The position is hybrid with 3 days in the...

Sanderson Recruitment is seeking a skilled software engineer for a major UK Defence and National Security programme based in London, Manchester, or Cheltenham. The role focuses on building and delivering solutions in a highly secure environment, with on-site collaboration at core locations.Ideal candidates have strong Python or Java skills, AWS proficiency,...

Methods is seeking a Java / Python Developer to help manage, build, develop and design Java applications with strong exposure to Spring Boot, microservices and system design.You will work as part of an Agile squad to develop Market Risk applications, collaborate with stakeholders, and shape the tooling landscape to meet regulatory obligations. The role...

A FinTech start up is looking for a Senior Engineer with experience in Python and one of Java, Rust, Go or C++ to design and build real time platforms used within highly specialised financial markets. You will take ownership of features from concept to production, solving complex distributed systems problems. The company is funded by a major business and...

AWS Network Engineer (Palo Alto, Firewalls, Python) - Amsterdam/RemoteHourly rate: €90 - €110 Duration: 12 months Location: Netherlands (Hybrid), UK, Belgium & EU-Based Contractors Start Date: ASAPMy client is looking for an experienced AWS Network Engineer to join their Cloud Networking team and play a key role in managing and evolving large-scale AWS...

The Low-latency technology group is looking for an experienced Software Engineer and Integration specialist with experience in equities markets, connectivity, systems integration and automation to join our JISU COB team in London. The JISU COB Team is responsible for project delivery, including business analysis, project management, client onboarding,...

Acclaim AI is seeking a skilled backend developer to build scalable services, APIs, databases, and integrations with external systems while collaborating with a small, hands-on team that moves fast. You will own the LLM agent framework, improve observability, and adapt solutions for customer use cases, leveraging AI tools in daily development.Ideal...

Agentic AI Software Engineer (Programmer Software Engineer Developer Python Amazon Web Services AWS Strands Agents AI LangChain LangGraph CrewAI Google AutoGen Pydantic AI PydanticAI Bedrock AgentCore ADK Azure GCP Cloud Asset Manager Buy Side Investment Management Fund Hedge Fund Finance Financial Services Banking Front Office Trading Asset Manager)...

JPMorgan Chase is looking for a Senior Lead Software Engineer in Greater London to enhance their Markets Research Technology team. You will design and deliver cutting-edge technology products, focusing on cloud-native data and AIML engineering, while fostering best practices in software development.The ideal candidate has a strong background in Python,...

AI Solutions Engineer - RAG - Python - LLM - Wealth Management An exciting opportunity has arisen for an ambitious, hands-on AI Solutions Engineer to play a key role in shaping how Generative AI is used across a leading wealth-management environment. You'll take real business challenges and turn them into practical, production-ready AI solutions, working...

PhysicsX Ltd. is building an AI-driven simulation platform for engineering across advanced industries.As a software engineer, you will build, train, and deploy physics-informed models, taking ownership from implementation through production with emphasis on testing, containerisation, CI/CD, and observability. You will join a cross-functional team in a hybrid...

N.P.A. is seeking a C++ Software Engineer to build high-performance, low-latency software for financial markets. The role collaborates with Product, Infrastructure and QA teams to deliver reliable code handling high TPS in a global environment.The ideal candidate will have strong C++11, Boost, Python (Pytest), and Linux experience, with familiarity in...

Dex is looking for a specialist to join a high-growth, profitable technology company in London. This role focuses on designing and scaling production-grade ML systems while optimizing personalized reward mechanisms. Candidates should have a strong background in statistical methods and machine learning, particularly in high-scale environments. This position...