26 to 50 of 94 Senior Python Developer Jobs in London

Client: Tech4 Location: London, United Kingdom Job Category: Other EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 08.05.2025 Expiry Date: 22.06.2025 col-wide Job Description: Senior Software Developer (PYTHON/AWS/REACT) - health tech - tech for good, make a positive impact on the world. Highly successful and fast-growing organization has an … exciting opportunity for a Senior Software Developer (PYTHON/AWS/REACT). They are looking for a talented individual who will design, implement, and maintain their publishing software, systems, and customer-facing digital products. Requirements Design and implement systems and software to meet requirements using appropriate tools and methods. Promote the creation of high-quality code … of APIs that adhere to the Open API specification. Knowledge & Skills for this job 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 working in an agile environment and an understanding of Scrum principles. Experience More ❯

next phase of expansion. This creates new opportunities for driven and skilled individuals to join one of the fastest-growing consultancies globally. Job Description We are seeking a skilled Python Developer with experience in the trading domain and FIX protocol to join our dynamic team. The ideal candidate will have a strong background in software development, a deep … industry trends and technologies in the trading domain. Qualifications Bachelor’s degree in computer science, Engineering, or a related field. Proven experience for more than 6+ years as a Python Developer in the trading domain. Experience with trading systems, market data, and order management systems. Proficiency in Python programming and related frameworks/libraries. Familiarity with databases … employees. We are dedicated to helping our employees reach their full potential, offering Pathways Career Development Quarterly, a programme designed to support professional growth. Seniority level Seniority level Mid-Senior level Employment type Employment type Full-time Job function Job function Consulting Industries IT Services and IT Consulting Referrals increase your chances of interviewing at Version 1 by 2x More ❯

Counterparty Credit Risk Senior Developer (Python & C++) (Hybrid) Job Description ACE Quant Development Team is a group within Citi's Financial, Market & Credit Risk Technology group, responsible for developing the analytical models which are used for derivatives credit risk and exposure calculations Firm-wide. The team's primary focus is the development, testing, deployment, and maintenance of … the production derivatives credit risk application, used for internal risk management and regulatory capital purposes. The Counterparty Credit Risk Senior Application Developer position is a senior role that will interface closely with Quant and Front Office technology teams to integrate pricing model and workflow enhancements within the ACE application. There will be exposure to a wide range … Managers to ensure integration of new technology features and quant library updates into the codebase. The role will involve tasks such as: Development and maintenance of the in-house Python and C++ model libraries. Identifying and developing calculation optimization improvements Working with Front Office teams to integrate quant library/technology enhancements into the codebase Supporting the build, testing More ❯

Senior Python Engineer – Cloud & Data Orchestration 📍 Hybrid (1–2 days/week in office) | 💼 £140k+ Package | 🕵️‍♂️ Security-Cleared or Security Clearable required Location: London | Sector: Intelligence, Analytics & Secure Data | Process: 3 stages Our client is a mission-driven consultancy delivering high-impact intelligence, research, and technical services to governments and private sector clients globally and the brand are … best practices, and legacy tech modernisation Collaborating with a multidisciplinary group including intelligence analysts, researchers, and domain specialists Supporting clients working in highly sensitive and secure environments Ideal Background Senior/Lead/Founding Software Engineer, startup/hands on CTO, or Lead Architect experience, ideally in cloud-native or high-scale data environments Strong background in Python … the ground up, setting best practice and standards Experience leading and mentoring teams Worked in a startup/scaleup background and someone that is adaptable Tech Stack Snapshot Languages: Python Cloud: AWS preferred, cloud-agnostic approach encouraged Data: SQL, Databricks, Iceberg, Kubernetes, large-scale data pipelines CI/CD & Ops: Open source tools, modern DevOps principles Why Join? Impactful More ❯

Senior Python Engineer – Cloud & Data Orchestration 📍 Hybrid (1–2 days/week in office) | 💼 £140k+ Package | 🕵️‍♂️ Security-Cleared or Security Clearable required Location: London | Sector: Intelligence, Analytics & Secure Data | Process: 3 stages Our client is a mission-driven consultancy delivering high-impact intelligence, research, and technical services to governments and private sector clients globally and the brand are … best practices, and legacy tech modernisation Collaborating with a multidisciplinary group including intelligence analysts, researchers, and domain specialists Supporting clients working in highly sensitive and secure environments Ideal Background Senior/Lead/Founding Software Engineer, startup/hands on CTO, or Lead Architect experience, ideally in cloud-native or high-scale data environments Strong background in Python … the ground up, setting best practice and standards Experience leading and mentoring teams Worked in a startup/scaleup background and someone that is adaptable Tech Stack Snapshot Languages: Python Cloud: AWS preferred, cloud-agnostic approach encouraged Data: SQL, Databricks, Iceberg, Kubernetes, large-scale data pipelines CI/CD & Ops: Open source tools, modern DevOps principles Why Join? Impactful More ❯

office, 2 from home) Troi Search are delighted to be working with this Post Series B company, that build bespoke RetailTech solutions. We're helping them search for a Senior Backend Engineer (Python) to join a fast-growing, innovative team focused on building cutting-edge solutions in the demand forecasting and stock management arena. This role offers the … and Best Practices : Write robust, scalable, and maintainable code with a strong emphasis on testing, version control, and continuous integration. Minimum Requirements: Around 5+ years of professional experience in Python development A degree in Computer Science, Engineering, Mathematics, Physics, or a related field Strong proficiency in Python and writing scalable backend systems Experience working with cloud platforms such More ❯

Senior Python Engineer – Cloud & Data Orchestration 📍 Hybrid (1–2 days/week in office) | 💼 £140k+ Package | 🕵️‍♂️ Security-Cleared or Security Clearable required Location: London | Sector: Intelligence, Analytics & Secure Data | Process: 3 stages Our client is a mission-driven consultancy delivering high-impact intelligence, research, and technical services to governments and private sector clients globally and the brand are … best practices, and legacy tech modernisation Collaborating with a multidisciplinary group including intelligence analysts, researchers, and domain specialists Supporting clients working in highly sensitive and secure environments Ideal Background Senior/Lead/Founding Software Engineer, startup/hands on CTO, or Lead Architect experience, ideally in cloud-native or high-scale data environments Strong background in Python … the ground up, setting best practice and standards Experience leading and mentoring teams Worked in a startup/scaleup background and someone that is adaptable Tech Stack Snapshot Languages: Python Cloud: AWS preferred, cloud-agnostic approach encouraged Data: SQL, Databricks, Iceberg, Kubernetes, large-scale data pipelines CI/CD & Ops: Open source tools, modern DevOps principles Why Join? Impactful More ❯

next phase of expansion. This creates new opportunities for driven and skilled individuals to join one of the fastest-growing consultancies globally. Job Description We are seeking a skilled Python Developer with experience in the trading domain and FIX protocol to join our dynamic team. The ideal candidate will have a strong background in software development, a deep … industry trends and technologies in the trading domain. Qualifications Bachelor’s degree in computer science, Engineering, or a related field. Proven experience for more than 6+ years as a Python Developer in the trading domain. Experience with trading systems, market data, and order management systems. Proficiency in Python programming and related frameworks/libraries. Familiarity with databases More ❯

Social network you want to login/join with: col-narrow-left Client: RWE AG Location: London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: 8bd9678046a4 Job Views: 3 Posted: 18.06.2025 Expiry Date More ❯

Senior Python Developer Permanent £80,000- £90,000 (doe) London – Hybrid Seeking an experienced Senior Python Developer for a Permanent role based in central London.Hybrid working with the expectation of 3 days/week on site in London . Immediate start, ideally Summer 2025. A chance to work with a leading digital transformation business … on large-scale IT modernisation programmes for government clients. Key skills, experience + tasks will include: Extensive hands-on experience with Python is essential, including a strong grasp of Core Python concepts. Proven expertise in deploying Python applications using CI/CD, along with proficiency in designing and implementing CI/CD pipelines in Cloud environments. Excellent More ❯

Senior Python Developer with Blockchain Experience Senior Python Developer with Blockchain Experience 4 weeks ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. This range is provided by GenLayer Labs. Your actual pay will be based on your skills and experience — talk with your recruiter … power of AI to automate complex processes, make smart decisions, and interact with the real world in ways that were previously impossible. Position Overview We are looking for a Senior Python Developer who specializes in advanced Python development. In this role, you will focus on core language features, performance optimization, and security enhancements suitable for sandboxed … execution environments. Your expertise will be crucial in ensuring the robustness, security, and efficiency of our custom Python interpreter and its integration with blockchain functionalities. Key responsibilities Specialize in advanced Python development focusing on core language features Optimize Python code for performance and scalability Implement security enhancements suitable for sandboxed execution environments Collaborate with the development team More ❯

Senior BI Developer - Front Office, Power BI, Python sought by leading investment bank based in the city of London. **Inside IR35 - 4 days a week on site** - A strong front office/banking background is essential. Overview BI Developer role supporting Front Office operations with expertise in Power BI, data engineering, and stakeholder management in investment … reporting Troubleshoot data quality issues in time-sensitive trading environments Required Skills BI development with strong Power BI (DAX, Power Query, data modeling) Data engineering experience building production pipelines Python, SQL, and Spark proficiency Experience with investment banking data (trades, positions, market data, reference data) Understanding of regulatory reporting processes Proven ability to work directly with demanding front office More ❯

Senior Python Developer - Financial Technology Up to £850 per day via umbrella | Hybrid Working | London Area Join a dynamic team within a global Tier 1 investment bank building cutting-edge financial systems that operate at global scale. They are seeking an exceptional Python developer to work on high-availability trading platforms in a fast-paced … performance applications using modern development practices Collaborate in an agile environment with continuous integration Provide 3rd line production support for critical trading systems What We're Looking For Strong Python skills (or equivalent OO/Functional language experience) Degree in Computer Science, Physics, Engineering, Mathematics or similar Experience with high-availability financial systems Solid understanding of algorithms, data structures More ❯

Senior Python Developer - Financial Technology Up to £850 per day via umbrella | Hybrid Working | London Area Join a dynamic team within a global Tier 1 investment bank building cutting-edge financial systems that operate at global scale. They are seeking an exceptional Python developer to work on high-availability trading platforms in a fast-paced … performance applications using modern development practices Collaborate in an agile environment with continuous integration Provide 3rd line production support for critical trading systems What We're Looking For Strong Python skills (or equivalent OO/Functional language experience) Degree in Computer Science, Physics, Engineering, Mathematics or similar Experience with high-availability financial systems Solid understanding of algorithms, data structures More ❯

wide Job Description: Join a dynamic team within a global Tier 1 investment bank building cutting-edge financial systems that operate at global scale. They are seeking an exceptional Python developer to work on high-availability trading platforms in a fast-paced, front office environment. What You'll Do Senior Python Developer - Financial Technology Up … Working | London Area Join a dynamic team within a global Tier 1 investment bank building cutting-edge financial systems that operate at global scale. They are seeking an exceptional Python developer to work on high-availability trading platforms in a fast-paced, front office environment. What You'll Do Develop and maintain large-scale distributed financial systems Work … performance applications using modern development practices Collaborate in an agile environment with continuous integration Provide 3rd line production support for critical trading systems What We're Looking For Strong Python skills (or equivalent OO/Functional language experience) Degree in Computer Science, Physics, Engineering, Mathematics or similar Experience with high-availability financial systems Solid understanding of algorithms, data structures More ❯

Join to apply for the Senior Python Developer (Data) role at With Intelligence Join to apply for the Senior Python Developer (Data) role at With Intelligence Get AI-powered advice on this job and more exclusive features. Over the past 25 years, With Intelligence has evolved from a traditional financial publisher into a dynamic … will enable you to get hands on experience in multiple areas, making it an amazing opportunity to learn very quickly. Responsibilities Design and develop robust, scalable data pipelines using Python and related technologies. Implement data integration solutions to collect, process, and store structured and unstructured data from diverse sources. Collaborate with data scientists and analysts to implement data-driven … performance and efficiency of data processing and storage solutions. Ensure data quality and integrity throughout the data lifecycle. Maintain and enhance existing data infrastructure and tools. Requirements Proficiency in Python programming with a focus on data manipulation, processing, and analysis. Experience with data modeling, ETL processes, and working with large-scale datasets. Familiarity with database systems (e.g., SQL, NoSQL More ❯

Our client, a leading and fast-growing Fintech in Blackfriars, London is looking for an experienced Senior Level Python Developer. They specialise in delivering cutting-edge solutions that are transforming the industry and making financial services more accessible and efficient. The company fosters a collaborative and forward-thinking environment where new ideas are encouraged, and every team member … growth. They also believe in maintaining a healthy work-life balance and encourage a collaborative team spirit throughout the organisation. Job Overview The client is seeking a highly skilled Senior Level Python Developer to join their dynamic team. In this role, you will design and develop high-quality software solutions and contribute to innovative fintech products. You … of coding standards and practices. * Staying up-to-date with the latest technologies and suggesting improvements for ongoing projects. Requirements Applicants should meet the following requirements: * Proven experience in Python software development (3+ years at Senior Level) * Strong development skills in Python and familiarity with frameworks/tools relevant to fintech. * Solid understanding of the software development More ❯

will enable you to get hands-on experience in multiple areas, making it an amazing opportunity to learn very quickly. Responsibilities: Design and develop robust, scalable data pipelines using Python and related technologies. Implement data integration solutions to collect, process, and store structured and unstructured data from diverse sources. Collaborate with data scientists and analysts to implement data-driven … and efficiency of data processing and storage solutions. Ensure data quality and integrity throughout the data lifecycle. Maintain and enhance existing data infrastructure and tools. Minimum Requirements: Proficiency in Python programming with a focus on data manipulation, processing, and analysis. Experience with data modeling, ETL processes, and working with large-scale datasets. Familiarity with database systems (e.g., SQL, NoSQL … company, you will enjoy the benefits of an open plan office and working with a social and energetic team. With Intelligence provides exclusive editorial, research, data and events for senior executives within the asset management industry. These include hedge funds, private credit, private equity, real estate and traditional asset management, and our editorial brands are seen as market leaders More ❯

Remote Senior Python Developers at Scurri London,United Kingdom Required Remote Developers : 2 Do you design & build solid websites in Python? Are you insanely passionate about your craft and experienced in agile development? Interested in working with an exciting young startup? Then we would like to talk to you. Scurri is a young but highly ambitious startup … have converged on a solid business model. We are funded by some very experienced investors with an amazing track record. What we need: We’re looking for an experienced developer to join our talented self organising remote development team helping us build and scale our product. How we work: We have our planning meetings on a Monday, using an … Slack keeps us all connected throughout the week! What we’re looking for: A Craftsperson who is willing to share, collaborate and help others grow 5+ years experience with Python (our platform is based on Django, by the way) Strong working knowledge of GIT, automated unit and acceptance testing tools and practices, and continuous integration Experience in working with More ❯

Senior Python Developer – Backend - Hybrid Remote Location: 3 days from home/2 days in NW London Salary: Circa 90K – 97K + Benefits Senior Python Developer required by revolutionary, tech-focused Company! This is a challenging, key role developing scalable, high-quality, enterprise-grade products and mentoring peers Essential: Strong experience in Python More ❯

Social network you want to login/join with: Senior Python Developer (Distributed Systems) - Up to £140,000 P/A - London, london col-narrow-left Client: Hunter Bond Location: london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 4 Posted: 16.06.2025 Expiry Date: 31.07.2025 col-wide Job Description: Role … Python Developer Salary : £140,000 P/A + Bonus + Benefits Location: London Client : Top Fintech My client is a well-established and successful tech house working in the finance sector who are looking for a Python Developer, with outstanding technical and communication skills to join their existing team of software engineers! You will get … in London, you will get a true input into the end to end SDLC and get to make a genuine impact on a growing business. Requirements: Strong experience with Python (2+ Years) Experience working with REST Microservices Strong SQL Experience working with very large data sets. Knowledge of big data tools (Spark, Kafka etc) Experience working in finance (Preferred More ❯

Senior Python Software Engineer – London *Please note this role cannot sponsor. Please do not apply if you are seeking sponsorship* A Senior Python Engineer is required for an exciting and innovative Software sports betting company based in London. The successful candidate will be working closely with the quantitative researchers and alongside other extremely talented and driven … You will be joining a tight-knit team of research mathematicians, computer scientists and trading analysts at the top of their chosen fields. The current team consists of one developer with 10+ years of experience, specializing in Python backend development. The team will grow in 2025. Essential Skills 5+ years’ experience in a Software Development role, with some … Python experience and a track record of building robust, high-quality solutions. 1+ year in a leadership position, with a history of successfully guiding teams and projects to impactful outcomes. Experience in designing and sustaining technical solutions that pragmatically address complex, real-world business challenges. Be hands-on: take on tasks, actively solve problems and contribute to delivery. Lead More ❯

Senior Python Software Engineer – London *Please note this role cannot sponsor. Please do not apply if you are seeking sponsorship* A Senior Python Engineer is required for an exciting and innovative Software sports betting company based in London. The successful candidate will be working closely with the quantitative researchers and alongside other extremely talented and driven … You will be joining a tight-knit team of research mathematicians, computer scientists and trading analysts at the top of their chosen fields. The current team consists of one developer with 10+ years of experience, specializing in Python backend development. The team will grow in 2025. Essential Skills 5+ years’ experience in a Software Development role, with some … Python experience and a track record of building robust, high-quality solutions. 1+ year in a leadership position, with a history of successfully guiding teams and projects to impactful outcomes. Experience in designing and sustaining technical solutions that pragmatically address complex, real-world business challenges. Be hands-on: take on tasks, actively solve problems and contribute to delivery. Lead More ❯

Senior Python Software Engineer – London *Please note this role cannot sponsor. Please do not apply if you are seeking sponsorship* A Senior Python Engineer is required for an exciting and innovative Software sports betting company based in London. The successful candidate will be working closely with the quantitative researchers and alongside other extremely talented and driven … You will be joining a tight-knit team of research mathematicians, computer scientists and trading analysts at the top of their chosen fields. The current team consists of one developer with 10+ years of experience, specializing in Python backend development. The team will grow in 2025. Essential Skills 5+ years’ experience in a Software Development role, with some … Python experience and a track record of building robust, high-quality solutions. 1+ year in a leadership position, with a history of successfully guiding teams and projects to impactful outcomes. Experience in designing and sustaining technical solutions that pragmatically address complex, real-world business challenges. Be hands-on: take on tasks, actively solve problems and contribute to delivery. Lead More ❯

Senior Python Software Engineer – London *Please note this role cannot sponsor. Please do not apply if you are seeking sponsorship* A Senior Python Engineer is required for an exciting and innovative Software sports betting company based in London. The successful candidate will be working closely with the quantitative researchers and alongside other extremely talented and driven … You will be joining a tight-knit team of research mathematicians, computer scientists and trading analysts at the top of their chosen fields. The current team consists of one developer with 10+ years of experience, specializing in Python backend development. The team will grow in 2025. Essential Skills 5+ years’ experience in a Software Development role, with some … Python experience and a track record of building robust, high-quality solutions. 1+ year in a leadership position, with a history of successfully guiding teams and projects to impactful outcomes. Experience in designing and sustaining technical solutions that pragmatically address complex, real-world business challenges. Be hands-on: take on tasks, actively solve problems and contribute to delivery. Lead More ❯