19 of 19 Senior Python Developer Jobs in the UK

Senior Python Developer - Banking London, UK | Hybrid | c.£ depending on experience Permanent Brief We're hiring a Senior Python Developer to join a high-performing engineering team within a banking environment. Key Responsibilities Build and scale Python-based backend systems and APIs Work … high-availability, data-intensive applications Collaborate with engineering, data, and business teams Required Experience Strong Python experience (Django, Flask or FastAPI) Proven backend/API development experience Experience within banking or financial services Exposure to cloud (AWS/Azure/GCP) and modern engineering practices Nice To Have Microservices ...

Senior Python Developer - Data Platform and AI Location: London or Glasgow (Hybrid) We're partnering with a leading global financial institution to hire a Senior Python Developer to join a high-impact Data & Analytics engineering team supporting front-office functions. This is a hands … intersection of data, engineering, and AI, with exposure to modern technologies including LLM integrations. What You'll Be Doing Design, build, and maintain Python-based backend services Develop and enhance data governance tooling used across the business Contribute to UI components to improve user experience Own the full development ...

Hiring: Senior Python & LLM Developer (10+ Years Experience) Are you passionate about building intelligent systems powered by Large Language Models (LLMs), Agentic AI, RAG Architectures, and Conversational AI We are looking for a highly skilled Senior Python & LLM Developer to join our AI engineering … edge technologies including LangChain, LangGraph, Agentic Frameworks, RAG Pipelines, Vector Databases, Knowledge Graphs, and Cloud AI Services . 🌟 What You'll Do As a Senior Python & LLM Developer, you will play a critical role in designing, building, and deploying enterprise-grade AI solutions that solve complex business ...

Senior Python Developer (PYTHON/REACT/AWS/AZURE) - is required by fast growing and highly successful technology consultancy. They are looking for a talented individual who will design, implement, and maintain their complex software, systems, and customer-facing digital products. Requirements Design and implement … this job Able to demonstrate commercial software development experience. Practical experience in system design, development, testing and operational stability. Deep knowledge and experience in Python and its ecosystem, patterns and pitfalls. Experience applying continuous delivery, test driven development and pair programming. Experience of working in an agile environment ...

Senior Python Developer (PYTHON/REACT/AWS/AZURE) - is required by fast growing and highly successful technology consultancy. They are looking for a talented individual who will design, implement, and maintain their complex software, systems, and customer-facing digital products. Requirements Design and implement … this job Able to demonstrate commercial software development experience. Practical experience in system design, development, testing and operational stability. Deep knowledge and experience in Python and its ecosystem, patterns and pitfalls. Experience applying continuous delivery, test driven development and pair programming. Experience of working in an agile environment ...

Senior Python Developer (PYTHON/REACT/AWS/AZURE) - is required by fast growing and highly successful technology consultancy. They are looking for a talented individual who will design, implement, and maintain their complex software, systems, and customer-facing digital products. Requirements Design and implement ...

Python Developer Watford, Hertfordshire (Hybrid) £70,000 - £75,000 per annum + Excellent benefits On behalf of an industry Leading organisation, I am seeking a Python Developer with strong production experience building high-throughput, message-driven platforms. This role suits someone comfortable working on real-world … Ensure unit tests are implemented and fit for purpose. Research and evaluate new technologies that could benefit the organisation. Design and develop high-quality Python software that meets complex business needs. Ensure code, documentation, and testing align with engineering standards. Deliver solutions that meet acceptance criteria, performance expectations ...

Senior Django/Python Developer Pay Rate: up to £700 (Inside IR35 - Umbrella) Duration: 6 months' Working arrangement: Once a every 3 months - London We're working on behalf of aFTSE 100 leading UK retailer, supporting the expansion of a highly successful AI-driven Smart Pricing programme. … results across well-known UK household brands, the organisation is now extending this platform across its European operations and is looking for an experienced Senior Django/Python Developer to support the next phase of delivery. This is a pure backend role, focused on scalable, high-quality ...

Senior Python/Django Developer (Contract) £700-£750 per day (Inside IR35) | Remote | 6 months We're supporting a leading UK retailer as they scale an AI-driven pricing platform across Europe, and are looking for a Senior Python/Django Developer to support … backend-focused role , working within a data-driven environment on a high-impact, large-scale platform. The Role Develop and maintain backend services using Python and Django Contribute to a scalable AI pricing platform used across multiple markets Work closely with engineers, data scientists and product teams Write clean ...

intuitive, reliable tools that make a real difference for researchers, clinicians, and regulatory teams. The Role We’re looking for a Mid-Level to Senior Python Developer with experience working with modern AI and LLM technologies. We’re looking for someone who can write clean, maintainable Python … environments, takes initiative, and is comfortable working across backend engineering, AI tooling, data workflows, and product collaboration. Responsibilities Write clean, maintainable, and well-tested Python code. Design and maintain scalable, reliable backend systems, APIs and data-processing pipelines. Work with structured scientific, clinical, and regulatory data. Contribute to GenAI ...

Senior Backend Python Developer 6-Month contract - Inside IR35 - up to £450 per day Leeds based - hybrid working - 3 days onsite Responsibilities Build and maintain backend services and APIs in line with existing architectural patterns and standards. Implement business logic, data access layers, and integrations with internal … performance, and reliability guidelines when implementing backend changes. Skills & Experience Core backend engineering 3-6+ years of backend development experience. Strong experience with Python or equivalent backend frameworks. Solid understanding of REST API development, request/response models, and error handling. Experience working in microservices-based architectures. Cloud ...

Senior Django/Python Developer Pay Rate: up to £700 (Inside IR35 - Umbrella) Duration: 6 months' Working arrangement: Once a every 3 months - London We're working on behalf of aFTSE 100 leading UK retailer, supporting the expansion of a highly successful AI-driven Smart Pricing programme ...

currently working with a London-based financial-services client who are actively seeking a Senior Python Developer to work on the development of a business-critical research and analytics platform. What you'll need to succeed : Strong Python software engineering experience beyond exploratory ...

currently working with a London-based financial-services client who are actively seeking a Senior Python Developer to work on the development of a business-critical research and analytics platform. What you'll need to succeed : Strong Python software engineering experience beyond exploratory ...

Hiring: Sr. Python Developer We have urgent openings with Our Reputed Client (a leading consulting company) 📍 Location: London (Hybrid – 3 days office) 🕘 Timings: 9:00 AM – 5:30 PM 📄 Type: Permanent & 6-month Contract (direct) Salary/rates- open to discuss 💼 Role Focus: Core Python Backend Development … Data Analytics & Application Development Trading/Risk Platforms (Investment Banking) 🔑 Must Have: Strong Core Python + SQL Unix/Linux (no Windows environment) Experience in Risk, Trading, or Reconciliation Exposure to platforms like Athena/Beacon/Quartz 💡 Typical Work: Build backend systems for trading & risk Work ...

Senior Python Quantitative Developer sought by a specialist and multi-award-winning Systematic Hedge Fund in a brand-new Core team designing and implementing a greenfield centralised Python/SQL/Linux/Docker platform for Backtesting, Pricing, Risk and Performance to be used across … tenure. The firm totals around 150 staff, all of whom are office-based three or more days per week. This is a more technical Senior QD role which will involve collaborating with Quantitative Researchers and Portfolio Managers to architect, design and implement scalable solutions, addressing complex business needs. Primarily ...

/day | 6 months | Remote | Immediate Start I'm hiring for a Senior Python Engineer for an initial 6-month contract. The role is ideal for engineers who enjoy owning features end-to-end while spending the majority of their time building scalable backend services and APIs. This … month initial contract ⚡ 1-stage interview process 🏠 Remote 🚀 Immediate starts available 📈 Potential for long-term extensions or permanent conversion 🛠️ Tech Stack/Environment Python (core backend focus) TypeScript + React (for fullstack feature ownership) AWS API development Modern cloud-based product environment Collaborative scaleup engineering culture 🎯 What They ...

currently working with a London-based financial services client who are actively seeking a Senior Fullstack Python Developer to work on the development of a next-generation research platform. What you'll need to succeed : Strong Python software engineering experience beyond exploratory scripts Hands-on experience ...

currently working with a London-based financial services client who are actively seeking a Senior Fullstack Python Developer to work on the development of a next-generation research platform. What you'll need to succeed : Strong Python software engineering experience beyond exploratory scripts Hands-on experience ...