1 to 25 of 27 Senior Python Developer Jobs in London

Job Title - Senior Python Developer Base Location: London plus network of 20 offices nationally: www.kpmg88careers.co.uk/experienced-professional/#LeBlender.OfficeLocations The KPMG Audit Technology team is dedicated to building cutting-edge solutions in close collaboration with the Audit function. We blend audit expertise with the latest technology, enabling us to understand the challenges our customers face daily … about. As a valued team member, you'll be expected to stay current with the tech field and the latest trends in Audit delivery. Why Join KPMG As a Senior Python Developer As a Senior Python Developer, you will play a hands-on role in the design and development of secure, scalable, and high … also support the deployment and operationalization of code using CI/CD pipelines and infrastructure-as-code practices. What will you be doing Backend Development: Develop, test, and maintain Python-based backend services, leveraging asynchronous programming and multithreading to optimize performance and scalability where appropriate. API Integration: Develop, document, and consume RESTful APIs, including integration with Microsoft Graph APIs More ❯

Job Title - Senior Python Developer Base Location: London plus network of 20 offices nationally: www.kpmg88careers.co.uk/experienced-professional/#LeBlender.OfficeLocations The KPMG Audit Technology team is dedicated to building cutting-edge solutions in close collaboration with the Audit function. We blend audit expertise with the latest technology, enabling us to understand the challenges our customers face daily … about. As a valued team member, you'll be expected to stay current with the tech field and the latest trends in Audit delivery. Why Join KPMG As a Senior Python Developer As a Senior Python Developer, you will play a hands-on role in the design and development of secure, scalable, and high … also support the deployment and operationalization of code using CI/CD pipelines and infrastructure-as-code practices. What will you be doing Backend Development: Develop, test, and maintain Python-based backend services, leveraging asynchronous programming and multithreading to optimize performance and scalability where appropriate. API Integration: Develop, document, and consume RESTful APIs, including integration with Microsoft Graph APIs More ❯

Job Title - Senior Python Developer Base Location: London plus network of 20 offices nationally: www.kpmg88careers.co.uk/experienced-professional/#LeBlender.OfficeLocations The KPMG Audit Technology team is dedicated to building cutting-edge solutions in close collaboration with the Audit function. We blend audit expertise with the latest technology, enabling us to understand the challenges our customers face daily … about. As a valued team member, you'll be expected to stay current with the tech field and the latest trends in Audit delivery. Why Join KPMG As a Senior Python Developer As a Senior Python Developer, you will play a hands-on role in the design and development of secure, scalable, and high … also support the deployment and operationalization of code using CI/CD pipelines and infrastructure-as-code practices. What will you be doing Backend Development: Develop, test, and maintain Python-based backend services, leveraging asynchronous programming and multithreading to optimize performance and scalability where appropriate. API Integration: Develop, document, and consume RESTful APIs, including integration with Microsoft Graph APIs More ❯

Job Title - Senior Python Developer Base Location: London plus network of 20 offices nationally: www.kpmg88careers.co.uk/experienced-professional/#LeBlender.OfficeLocations The KPMG Audit Technology team is dedicated to building cutting-edge solutions in close collaboration with the Audit function. We blend audit expertise with the latest technology, enabling us to understand the challenges our customers face daily … about. As a valued team member, you'll be expected to stay current with the tech field and the latest trends in Audit delivery. Why Join KPMG As a Senior Python Developer As a Senior Python Developer, you will play a hands-on role in the design and development of secure, scalable, and high … also support the deployment and operationalization of code using CI/CD pipelines and infrastructure-as-code practices. What will you be doing Backend Development: Develop, test, and maintain Python-based backend services, leveraging asynchronous programming and multithreading to optimize performance and scalability where appropriate. API Integration: Develop, document, and consume RESTful APIs, including integration with Microsoft Graph APIs More ❯

We are looking for highly competent expert with substantial Python programming knowledge. Their major responsibility is to create, maintain, and improve Python programs, networks, and solutions.Senior Python Developers are also frequently in charge of mentoring junior developers, providing technical leadership, and cooperating with cross-functional teams. Senior Python Developer is an important player in … the world of Python programming. Their knowledge, experience, and leadership all contribute to the creation of robust and efficient software. Department: Project Management Project Location(s): London - United Kingdom Compensation: 73.000 GBP P/A Responsibilities You are in charge of creating Python-based applications and systems. Their code is the foundation of all software projects, ensuring functionality … collaboratively with cross-functional groups is an important element of this role. They aid in the definition of project demands and specifications, ensuring that software meets business objectives. A Senior Python Developer's role includes code reviews. They ensure code quality, suggest areas for development, and ensure best practices are followed You are in charge of finding More ❯

Senior Python Developer (PYTHON/AWS/REACT) - Health tech - tech for good, make a positive impact on the world Highly successful and fast growing organisation has an exciting opportunity for a Senior Software Developer (PYTHON/AWS/REACT). They are looking for a talented individual who will design, implement, and … API specification Knowledge & Skills for 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 and an understanding of Scrum principles More ❯

Senior Python Developer Quant Framework Build London (Hybrid) VP Level £150k + Bonus + Benefits Python Join a Global Leader in Capital Markets Technology. Are you a Python expert who has built quant trading platforms from the ground up? This is a rare opportunity to join a leading international capital markets organisation, renowned for its … cutting-edge technology and fast-paced trading environment. You will take a pivotal role in designing and delivering a new quantitative development framework, shaping the Python ecosystem that underpins trading, pricing, and risk across the front office. The Role As a Senior Python Developer (VP Level), you will: Lead the build of a brand-new Python-based quant development framework, owning its design, architecture, and tooling. Partner closely with teams in London and New York to define the Python environment, toolset, and DevOps processes from the ground up. Collaborate with quantitative engineers, model developers, and traders, enabling agile delivery of advanced trading and risk tools. Solve complex engineering challenges, laying the foundation for next More ❯

Senior Python Developer Location: Hybrid - 3 days remote/2 days in NW London Salary: Circa 90K 97K + Benefits Senior Python Developer required by a fast-growing, Top Tech Company! This is a varied, challenging role within a talented team, where youll focus on building scalable, reliable backend systems while also sharing knowledge … and guiding less experienced developers where needed Essential: Solid background in backend development using Python (Flask, FastAPI, or similar) Good skills in Google Cloud Platform (GCP) Experience developing RESTful APIs Familiarity with Cloud Functions and Cloud Run Skilled in Docker and/or Kubernetes Understanding of CI/CD processes Strong grasp of clean code practices and scalable architecture More ❯

Senior Python Developer Location: Hybrid - 3 days remote/2 days in NW London Salary: Circa 90K – 97K + Benefits Senior Python Developer required by a fast-growing, Top Tech Company! This is a varied, challenging role within a talented team, where you’ll focus on building scalable, reliable backend systems while also sharing … knowledge and guiding less experienced developers where needed Essential: Solid background in backend development using Python (Flask, FastAPI, or similar) Good skills in Google Cloud Platform (GCP) Experience developing RESTful APIs Familiarity with Cloud Functions and Cloud Run Skilled in Docker and/or Kubernetes Understanding of CI/CD processes Strong grasp of clean code practices and scalable More ❯

in Microsoft tech, our solution helps companies deploy intelligent agents, automate workflows, and accelerate innovation at scale. As demand surges for our product, we are currently hiring for a Senior Python Developer with Azure experience and a footing with AI who s ready to move at our speed. If you're passionate about AI, thrive in agile … helping businesses create and manage powerful automation through models, agents, and reusable templates. Ready to build the future with us? The Role at a Glance: AI/Azure/Python Developer UK Remote Up to £90,000 Benefits include flexible remote work and an environment that values speed, quality, and autonomy. Product/Service: Neologik is an accurate … through the mega trends of Internet, Public Cloud and now AI. Your Skills: Experience with Azure s native AI stack (including AI Foundry, Search, Cosmos DB, and AKS), strong Python and C# skills, VS Code (ideally with AI tools like Copilot), familiarity with Docker, Kubernetes, and scalable cloud-native architecture, and a track record of working in agile teams More ❯

in Microsoft tech, our solution helps companies deploy intelligent agents, automate workflows, and accelerate innovation at scale. As demand surges for our product, we are currently hiring for a Senior Python Developer with Azure experience and a footing with AI who’s ready to move at our speed. If you're passionate about AI, thrive in agile … helping businesses create and manage powerful automation through models, agents, and reusable templates. Ready to build the future with us? The Role at a Glance: AI/Azure/Python Developer UK Remote Up to £90,000 Benefits include flexible remote work and an environment that values speed, quality, and autonomy. Product/Service: Neologik is an accurate … through the mega trends of Internet, Public Cloud and now AI. Your Skills: Experience with Azure’s native AI stack (including AI Foundry, Search, Cosmos DB, and AKS), strong Python and C# skills, VS Code (ideally with AI tools like Copilot), familiarity with Docker, Kubernetes, and scalable cloud-native architecture, and a track record of working in agile teams More ❯

in Microsoft tech, our solution helps companies deploy intelligent agents, automate workflows, and accelerate innovation at scale. As demand surges for our product, we are currently hiring for a Senior Python Developer with Azure experience and a footing with AI who's ready to move at our speed. If you're passionate about AI, thrive in agile … helping businesses create and manage powerful automation through models, agents, and reusable templates. Ready to build the future with us? The Role at a Glance: AI/Azure/Python Developer UK Remote Up to £90,000 Benefits include flexible remote work and an environment that values speed, quality, and autonomy. Product/Service: Neologik is an accurate … through the mega trends of Internet, Public Cloud and now AI. Your Skills: Experience with Azure's native AI stack (including AI Foundry, Search, Cosmos DB, and AKS), strong Python and C# skills, VS Code (ideally with AI tools like Copilot), familiarity with Docker, Kubernetes, and scalable cloud-native architecture, and a track record of working in agile teams More ❯

in Microsoft tech, our solution helps companies deploy intelligent agents, automate workflows, and accelerate innovation at scale. As demand surges for our product, we are currently hiring for a Senior Python Developer with Azure experience and a footing with AI who’s ready to move at our speed. If you're passionate about AI, thrive in agile … helping businesses create and manage powerful automation through models, agents, and reusable templates. Ready to build the future with us? The Role at a Glance: AI/Azure/Python Developer UK Remote Up to £90,000 Benefits include flexible remote work and an environment that values speed, quality, and autonomy. Product/Service: Neologik is an accurate … through the mega trends of Internet, Public Cloud and now AI. Your Skills: Experience with Azure’s native AI stack (including AI Foundry, Search, Cosmos DB, and AKS), strong Python and C# skills, VS Code (ideally with AI tools like Copilot), familiarity with Docker, Kubernetes, and scalable cloud-native architecture, and a track record of working in agile teams More ❯

lasting relationships. You'll be someone who is both comfortable working pro-actively and managing your own tasks, as well as confident collaborating with others and communicating regularly with senior managers, directors, and BDO's partners to help businesses effectively. You'll be encouraged to identify and draw attention to opportunities for enhancing our delivery and providing additional services … to organisations we work with. As a Senior Python Developer, you will lead BDO's strategic focus on developing Python-based solutions. Your mission is to design, build, and deploy innovative solutions that transform our internal processes and client services. You will be the technical authority for Python-based development, setting patterns, standards and best … practices. You'll be responsible for: Python Roadmap: Set the technical direction for Python-based development, evaluating tools and establishing frameworks. Development Standards: Define and adhere to internal development standards, ensuring quality, security and scalability. Mentorship: Mentor developers, enhancing their skills in Python through code reviews and knowledge sharing. Collaboration: Work with stakeholders to identify opportunities for More ❯

Senior Full Stack Developer/Engineer (JavaScript Python API) London to £100k Opportunity to progress your career in a senior, hands-on Senior Full Stack Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 … established 10 years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Full Stack Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future … You'll work across the full tech stack using JavaScript and Vue.js on the front end, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job as well as own your More ❯

VP Python Developer Role | Trading Floor | Capital Markets London (Hybrid) VP Level - £150k Bonus Benefits Python Join a Global Leader in Capital Markets Technology. Are you a Python expert who has built quant trading platforms from the ground up? This is a rare opportunity to join a leading international capital markets organisation, renowned for its cutting … edge technology and fast-paced trading environment. You will take a pivotal role in designing and delivering a new quantitative development framework, shaping the Python ecosystem that underpins trading, pricing, and risk across the Front Office. The Role: You will: Lead the build of a brand-new Python-based quant development framework, owning its design, architecture, and tooling. … Partner closely with teams in London and New York to define the Python environment, toolset, and DevOps processes from the ground up. Collaborate with quantitative engineers, model developers, and traders, enabling agile delivery of advanced trading and risk tools. Solve complex engineering challenges, laying the foundation for next-generation research and trading platforms. Key Responsibilities: Build the core Python More ❯

is transforming market research. You will be at the forefront of innovation, shaping a product that allows researchers to analyze complex survey data instantly using natural language. As a senior Python developer, you will lead architecture and backend development, taking ownership of key features from concept to deployment. You will design and implement new AI-powered analysis … shape the technical roadmap, own performance and caching optimizations, and elevate the team by guiding and supporting junior developers through mentorship and code reviews. About you: Essential skills: Professional Python experience, including deep knowledge of FastAPI and async workflows. Proven ability to take ownership of features, lead development, and support junior engineers. A genuine love for writing code, demonstrated More ❯

Senior Backend Engineer - Python AWS £80,000-100,000 + share options Private medical + GP service 25+ days holiday Paid sabbaticals Flexible working Python, AWS Central London, hybrid (1 day per week) Profitable FinTech We're partnered with a profitable, VC-backed fintech scale-up that's helping thousands of small businesses across Europe thrive. They … the opportunity to take the lead on greenfield projects, define ways of working and deploy iteratively in a fast-moving, data-driven environment. Most of the codebase is in Python, however they've utilised the likes of Rust and Go in smaller pieces of work. Ideal Profile: Strong backend software engineering experience with relevance to their stack (e.g., Python … Engineering This is a high-impact opportunity to shape a major revenue channel at one of Europe's leading fintech innovators - with the freedom, tooling, and support to grow. Senior Backend Engineer - Python AWS Burns Sheehan Ltd will consider applications based only on skills and ability and will not discriminate on any grounds. More ❯

in unattended retail tech - 150+ people, 5 countries, hundreds of customers, and a product that's redefining how the world shops. We're looking for a seasoned and thoughtful Senior Python Software Developer who thrives on building reliable, scalable backend systems and takes pride in writing clean, maintainable code. You care deeply about long-term architecture, performance … mentoring others to do the same. Pragmatic, proactive, and deeply invested in doing things the right way. What You'll Do Practice test-driven development (TDD) Develop and maintain Python applications that run on embedded hardware (e.g., NUCs), designed for reliability in both connected and disconnected environments. Handle intermittent connectivity: buffering, retry mechanisms, local caching/syncing with remote … APIs, services, and architectural decisions. What You'll Bring Experience: 8+ years of experience, with a strong track record of building and scaling Django based applications. Familiarity with running Python services on constrained environments (e.g., x86 NUCs, Raspberry Pi, etc.). Python & Django: Deep expertise in modern Django architecture and Python development. Comfortable with asynchronous tasks, REST More ❯

by the end of 2025. In the UK, Talan count 500 employees on several sites, the main being: London, Edinburgh and Leeds Job Description Talan is hiring a seasoned Python Developer to work with one of our top-tier investment banking clients in London, embedded within their Foreign Exchange technology team. This is an exciting opportunity to play … agile environment directly supporting trading and sales desks, with the opportunity to deliver innovative solutions that have real-time impact on business performance. Key Responsibilities: Design, develop, and enhance Python-based applications supporting FX trading workflows. Build robust, scalable, and performant tools for pricing, risk, analytics, and trade lifecycle. Collaborate closely with traders, quants, and other technologists to implement More ❯

Senior C++ Software Developer, Python - Financial/Banking Candidates will have 5+ years C++ experience (ideally more) and excellent knowledge of Python - ideally coming from a Financial/Banking background with knowledge of Equities, Futures & Options and Fixed Income and Exchange Connectivity and some Low Latency experience. Job Overview You will work with the Product, Infrastructure … develop software which handle large amount of TPS to drive a highly efficient technology used by several markets around the world. To be successful in this role as a Senior Software Engineer C++, you will be a proponent of agile methodology and modern software best practices. You can produce detailed technical work in OOP and work with other members … 2+ years of experience in networking (UDP, Multicasting, TCP, etc...), messaging, and algorithms.• 2+ years of experience on Linux systems.• Good understanding of modern development best practices and methodologies• Python, including Pytest. • Knowledge of capital markets exchange connectivity on stocks (fixed income and derivatives is a plus), including exchange protocols such as FIX and SBE. • Most importantly, a drive More ❯

We are working with a leading client in the technology sector who are seeking several Senior Java Developers to join their growing team in London. Candidates MUST have Java and another OOP programming language (ideally Python - but would consider others) as well as experience working for a software/tech consultancy. This is a hands-on role suited … to an experienced Senior Developer with strong core Java expertise and a solid understanding of modern software engineering practices. You'll be contributing to the design and development of high performance, scalable systems while mentoring junior team members and playing a key role in technical decision-making. Key Requirements: Extensive experience in Java development plus experience with Python (ideally Python but would consider others) . Strong understanding of microservices, distributed systems, and cloud technologies. Experience acting as a trusted advisor to key clients, helping shape their technology strategy aligned with business goals. Able to translate complex engineering needs into clear business value propositions. Proven ability to write clean, maintainable, and testable code. Experience with CI/ More ❯

data-driven decisions to deliver cutting-edge solutions. 7+ years of experience in backend software development with a focus on building scalable and maintainable solutions. Strong programming skills in Python, with a deep understanding of writing clean, efficient, and well-structured code. Experience with web frameworks, including FastAPI and developing RESTful APIs. Proficiency in version control using Git and … tuning, and Retrieval-Augmented Generation (RAG) pipelines. Experience in developing enterprise-grade applications that leverage data-driven decision-making. Responsibilities Develop, maintain, and optimize backend services and APIs using Python, ensuring high performance and scalability. Design and implement data processing pipelines to handle large volumes of data efficiently. Collaborate with cross-functional teams to understand client needs and translate More ❯

We are looking for a talented and experienced Market Data Python Developer for one of our global Investment Banking Clients. In this role, you will play a key part in developing and maintaining cutting-edge quantitative tools and infrastructure used by our front-office traders and other teams. Requirements Responsibilities: Be a self-starter and plan/schedule … of inclusivity and uphold company values. Qualifications: Bachelor's degree or equivalent with a quantitative emphasis in mathematics, engineering, or computer science. Minimum of 5 years of experience in Python development, with a strong understanding of object-oriented programming principles. Experience with pandas, numpy, matplotlib, scipy, and web frameworks like Flask or FastAPI is a plus. Good understanding of More ❯

Hedge Fund - Senior C++ Quant Developer - Equities - Linux - Python - Data/Algos/Low latency Hedge Fund background essential C++ (Version 11 upwards), Linux, Python (nice to have). Trading systems experience - ideally experience working in the equities space. Ideally the technical has experience with algo implementation. Quantitative Developer - Equities Technology We are in search … of a Quantitative Developer to join our team who is passionate about designing, architecting, and implementing low latency C++ systems that are not only robust, resilient, and accurate, but also exceptionally fast. Our team works directly with the firm's central trading teams. By constructing and maintaining this high-performance infrastructure used by these teams, this developer will … with trading teams to gather requirements and develop solutions in a fast-paced environment Qualifications 5+ years of professional experience in a Front Office, financial services environment as a senior contributor 10+ years cumulative, professional experience Strong background in data structures, algorithms, and object-oriented programming in C++ Permanent role - Central London based - 5 days a week in the More ❯