23 of 23 Permanent Lead Python Developer Jobs in London

Python Developer - AI Hardware Start-Up Base Salary: Up to £120,000 per annum Location: London, flexible work from home We are seeking an experienced Python Developer to join an innovative and rapidly growing team. This is an exciting opportunity to contribute to a mission-driven … company focused on transforming the future of hardware design. As a Python Developer, you will play a pivotal role in shaping the software that powers next-generation circuit board design. You'll be responsible for collaborating with a diverse team of engineers and product managers to build solutions … that address complex technical challenges and push the boundaries of what's possible. Ideal candidates will have: Proven experience as a Python Developer. A passion for tackling technical challenges and delivering high-impact software solutions. Strong coding skills and the ability to work effectively in a dynamic, fast-paced More ❯

/EU Principal Consultant | Machine Learning & AI | SC/DV/eDV | Defence & National Security Clearance Required: DV We're looking for an experienced Lead Python Developer to join a high-impact programme within the UK Defence and National Security sector. This is a unique opportunity to … software systems that directly support national safety and strategic defence operations. As a technical leader, you'll drive the design and development of advanced Python-based systems-often in highly secure environments guiding cross-functional teams, ensure engineering excellence, and oversee the full software lifecycle, from concept and prototyping … to secure deployment and ongoing support. Key Responsibilities: Leading the design and development of Python-based software systems in a high-security setting Working closely with data scientists, analysts, and engineering teams to deliver scalable, reliable solutions Architecting secure applications and services in line with defence-grade standards Mentoring More ❯

Social network you want to login/join with: Lead Python Developer - Outside £550p/d - DV Cleared, south west london col-narrow-left Client: iO Associates - UK/EU Location: south west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right … Job Views: 2 Posted: 06.06.2025 Expiry Date: 21.07.2025 col-wide Job Description: We're looking for an experienced Lead Python Developer to join a high-impact programme within the UK Defence and National Security sector. This is a unique opportunity to play a key role in delivering … software systems that directly support national safety and strategic defence operations. As a technical leader, you'll drive the design and development of advanced Python-based systems-often in highly secure environments. You'll guide cross-functional teams, ensure engineering excellence, and oversee the full software lifecycle, from concept More ❯

Lead Backend Developer Python Java AWS, London Client: Client Server Location: London, United Kingdom Job Category: Other EU work permit required: Yes Job Description: Lead Backend Developer/Software Engineer (Python Java AWS) London/WFH to £115k Are you a backend-focused software … developer with leadership skills? You could be progressing your career at a scale-up tech company (established 10 years), that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets. You'll be working on complex … Hammersmith office and two days remote. When in the office, enjoy onsite gym, barista coffee, and free breakfast. About you: Experienced backend-focused software developer with Python, Java, and good AWS knowledge Product-focused with good business acumen Understanding of software architecture, database optimisation, infrastructure, scalability, and deployment More ❯

and collaboration, aiming to deliver optimal services for our clients and create a positive and equitable working environment. Role Overview: We are seeking a Lead Python Developer to join our Python Development Team, working on a project with our insurance company client. As a Tech Lead, you will leverage your experience in backend software engineering, specifically using Python, to lead and inspire your team. This role involves collaboration with internal teams, contributing to technical strategy, and making key tech decisions. Key Responsibilities: Combine backend software engineering expertise with coaching and support for team … regard to the interests of customers and treat them fairly. Observe proper standards of market conduct. Education, Qualifications, Knowledge, Skills, and Experience: Technical Skills: Python, Web API, ORM. Experience with Webservices, Web API, Swagger, Postman, and Microsoft APIM. If you are up to the challenge and would like to More ❯

Lead Backend Developer/Software Engineer (Python Java AWS) London/WFH to £115k Are you a backend focussed software developer with leadership skills? You could be progressing your career at a scale-up tech company (established 10 years), that enables smart matching for commercial van … CO2 carbon neutral targets. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Lead Backend Developer you'll head up a team of 4-5 within an Agile environment to design and develop, troubleshoot and solve complex … software issues to help scale and future proof the business. You'll focus on backend Python and Java engineering on AWS but there's a range of other tech in the stack (JavaScript, Vue.js, TypeScript and of course a bit of legacy PHP!), you'll be encouraged to explore More ❯

Lead Backend Developer/Software Engineer (Python Java AWS) London/WFH to £115k Are you a backend focussed software developer with leadership skills? You could be progressing your career at a scale-up tech company (established 10 years), that enables smart matching for commercial van … CO2 carbon neutral targets. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Lead Backend Developer you'll head up a team of 4-5 within an Agile environment to design and develop, troubleshoot and solve complex … software issues to help scale and future proof the business. You'll focus on backend Python and Java engineering on AWS but there's a range of other tech in the stack (JavaScript, Vue.js, TypeScript and of course a bit of legacy PHP!), you'll be encouraged to explore More ❯

Lead Backend Developer/Software Engineer (Python Java AWS) London/WFH to £115k Are you a backend focussed software developer with leadership skills? You could be progressing your career at a scale-up tech company (established 10 years), that enables smart matching for commercial van … CO2 carbon neutral targets. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Lead Backend Developer you'll head up a team of 4-5 within an Agile environment to design and develop, troubleshoot and solve complex … software issues to help scale and future proof the business. You'll focus on backend Python and Java engineering on AWS but there's a range of other tech in the stack (JavaScript, Vue.js, TypeScript and of course a bit of legacy PHP!), you'll be encouraged to explore More ❯

Exciting opportunity for a Senior/Lead Python Developer with a background in Commodities Trading to join this Global Energy Company. This is an exciting time to be joining this world-leading company as they transform themselves from a traditional Oil & Gas company into a leading name … technology. The candidate will have deep knowledge of physical commodities trading markets and organisations, specifically in LNG. Skills and Experience: • 8+ years of relevant Python Application development experience • Creating applications and packages with Python 3 • Writing reliable unit and end-to-end tests with PyTest • Experience working in … pipelines etc.) • MS Azure experience e.g. virtual networks, key vaults and storage, security • MS SQL backend development experience • Experience in developing API’s in python using FastAPI/Django/Flask • Hands on in ADF and Azure Databricks With a focus within Energy Trading, Oil & Gas, Financial Markets and More ❯

Exciting opportunity for a Senior/Lead Python Developer with a background in Commodities Trading to join this Global Energy Company. This is an exciting time to be joining this world-leading company as they transform themselves from a traditional Oil & Gas company into a leading name … technology. The candidate will have deep knowledge of physical commodities trading markets and organisations, specifically in LNG. Skills and Experience: • 8+ years of relevant Python Application development experience • Creating applications and packages with Python 3 • Writing reliable unit and end-to-end tests with PyTest • Experience working in … pipelines etc.) • MS Azure experience e.g. virtual networks, key vaults and storage, security • MS SQL backend development experience • Experience in developing API’s in python using FastAPI/Django/Flask • Hands on in ADF and Azure Databricks With a focus within Energy Trading, Oil & Gas, Financial Markets and More ❯

Exciting opportunity for a Senior/Lead Python Developer with a background in Commodities Trading to join this Global Energy Company. This is an exciting time to be joining this world-leading company as they transform themselves from a traditional Oil & Gas company into a leading name … technology. The candidate will have deep knowledge of physical commodities trading markets and organisations, specifically in LNG. Skills and Experience: • 8+ years of relevant Python Application development experience • Creating applications and packages with Python 3 • Writing reliable unit and end-to-end tests with PyTest • Experience working in … pipelines etc.) • MS Azure experience e.g. virtual networks, key vaults and storage, security • MS SQL backend development experience • Experience in developing API’s in python using FastAPI/Django/Flask • Hands on in ADF and Azure Databricks With a focus within Energy Trading, Oil & Gas, Financial Markets and More ❯

Exciting opportunity for a Senior/Lead Python Developer with a background in Commodities Trading to join this Global Energy Company. This is an exciting time to be joining this world-leading company as they transform themselves from a traditional Oil & Gas company into a leading name … technology. The candidate will have deep knowledge of physical commodities trading markets and organisations, specifically in LNG. Skills and Experience: • 8+ years of relevant Python Application development experience • Creating applications and packages with Python 3 • Writing reliable unit and end-to-end tests with PyTest • Experience working in … pipelines etc.) • MS Azure experience e.g. virtual networks, key vaults and storage, security • MS SQL backend development experience • Experience in developing API’s in python using FastAPI/Django/Flask • Hands on in ADF and Azure Databricks With a focus within Energy Trading, Oil & Gas, Financial Markets and More ❯

col-narrow-right Job Views: 6 Posted: 10.06.2025 Expiry Date: 25.07.2025 col-wide Job Description: Clearance Required: DV We're looking for an experienced Lead Python Developer to join a high-impact programme within the UK Defence and National Security sector. This is a unique opportunity to … software systems that directly support national safety and strategic defence operations. As a technical leader, you'll drive the design and development of advanced Python-based systems-often in highly secure environments guiding cross-functional teams, ensure engineering excellence, and oversee the full software lifecycle, from concept and prototyping … to secure deployment and ongoing support. Key Responsibilities: Leading the design and development of Python-based software systems in a high-security setting Working closely with data scientists, analysts, and engineering teams to deliver scalable, reliable solutions Architecting secure applications and services in line with defence-grade standards Mentoring More ❯

Lead Backend Developer (Python Django)- US/UK TMT Insights is a professional services and software development company delivering leading capabilities in the digital supply chain, including media content management, cloud technology, and SaaS/D2C experiences to global media companies. Combining unmatched experience and specialized skills … ideation & innovation, cloud transformation, process re-engineering and development to our partners. The Opportunity Our team is looking for a US or UK-based Lead Backend Developer to join our growing team of dedicated technologists and innovators that collaboratively optimize digital supply chain for our clients. We are … looking for a lead that not only has a solid technical understanding of software engineering but is also a problem solver, a quick learner, great communicator, and a passion for designing, developing, and architecting delightful and impactful products. The ideal candidate will have a strong eye for driving, designing More ❯

with your recruiter to learn more. Base pay range Direct message the job poster from Client Server Tech Recruiter - Software Engineering at Client-Server Lead Backend Developer/Software Engineer (Python Java AWS) London/WFH to £115k Are you a backend-focused software developer with … remote. When in the office, you can enjoy onsite gym, barista coffee, and free breakfast. About you: You're an experienced, backend-focused software developer with Python, Java, and good knowledge of AWS. You're product-focused with good business acumen. You have a solid understanding of software … gym, partnership with Octopus Electric Vehicles, Evans Cycle to Work scheme, showers, and towels for cycling enthusiasts Apply now to learn more about this Lead Backend Developer/Software Engineer (Python Java AWS) role. At Client Server, we believe in a diverse workplace that allows people to More ❯

Lead Python/Django Developer and Architect Remote working but with once monthly meetups in London/Surrey TR Ref: CL/TR13612 Location: Remote working but with once monthly meetups in London/Surrey The Company This highly innovative InsurTech (and broker) have developed a modular … end-to-end, SaaS platform based around a core AWS/Python/Django/PostgreSQL and Android/iOS app stack, utilising ML/AI, with a central data storage & analysis hub, with API access. Recent investment sees them continue to scale their operations, hence them now looking … for a Lead Application Architect and Developer to join their small but growing team. Role and Requirements You will need extensive and advanced Python/Django application architecture and development skills, coupled with business analysis, requirement gathering, app design, implementation and (ideally) team management skills, as you More ❯

KDB/Python Lead Quant Developer - Systematic Equities | London/Dubai - Leading Multi-Strategy IM Salary: 200-600k GBP TC Summary: One of the world's most prestigious hedge funds is looking for a Quant Developer to be a founding member of one of their … systems, ensuring reliability, scalability, and timely execution, as well as sharing knowledge and promoting best practices in mentorship to junior developers. The successful Quant Developer will be a fantastic problem-solver with strong analytical skills, with the ability to quickly understand and apply complex concepts. Skills and Experience Required … z2bz0 years' experience in developing algorithmic trading systems, preferably in systematic equity trading markets Substantial KDB/Q and Python programming experience Good knowledge of modern data science tools stacks, e.g. Jupyter, pandas, numpy, sklearn, with ML experience Bachelors or Masters degree in Computer Science, Mathematics, Statistics, or related More ❯

Lead Backend Developer/Software Engineer (Python Java AWS) London/WFH to £115k All potential candidates should read through the following details of this job with care before making an application. Are you a backend focussed software developer with leadership skills? You could be progressing More ❯

Up to £140,000 per annum + Equity Location: London (Farringdon), Hybrid in office 1 day a month We are seeking a talented Technical Lead to join a pioneering AI start up automating the legal side of property transactions worldwide. Our mission is to leverage the latest in Generative … AI and Large Language Models, placing us at the forefront of advanced technology in this field. As a Technical Lead, you’ll guide a talented team of AI engineers and software engineers, own the end-to-end development of new features, collaborate with cross-functional teams and contribute directly … to a product that transforms the way property is transacted globally. Ideal candidates will have: 5+ years in a leadership role such as Technical Lead or hands-on Engineering Manager, ideally within AI/ML, software development, or SaaS startups. Passionate about Generative AI and LLMs with a strong More ❯

Up to £140,000 per annum + Equity Location: London (Farringdon), Hybrid in office 1 day a month We are seeking a talented Technical Lead to join a pioneering AI start up automating the legal side of property transactions worldwide. Our mission is to leverage the latest in Generative … AI and Large Language Models, placing us at the forefront of advanced technology in this field. As a Technical Lead, you’ll guide a talented team of AI engineers and software engineers, own the end-to-end development of new features, collaborate with cross-functional teams and contribute directly … to a product that transforms the way property is transacted globally. Ideal candidates will have: 5+ years in a leadership role such as Technical Lead or hands-on Engineering Manager, ideally within AI/ML, software development, or SaaS startups. Passionate about Generative AI and LLMs with a strong More ❯

Up to £140,000 per annum + Equity Location: London (Farringdon), Hybrid in office 1 day a month We are seeking a talented Technical Lead to join a pioneering AI start up automating the legal side of property transactions worldwide. Our mission is to leverage the latest in Generative … AI and Large Language Models, placing us at the forefront of advanced technology in this field. As a Technical Lead, you’ll guide a talented team of AI engineers and software engineers, own the end-to-end development of new features, collaborate with cross-functional teams and contribute directly … to a product that transforms the way property is transacted globally. Ideal candidates will have: 5+ years in a leadership role such as Technical Lead or hands-on Engineering Manager, ideally within AI/ML, software development, or SaaS startups. Passionate about Generative AI and LLMs with a strong More ❯

Up to £140,000 per annum + Equity Location: London (Farringdon), Hybrid in office 1 day a month We are seeking a talented Technical Lead to join a pioneering AI start up automating the legal side of property transactions worldwide. Our mission is to leverage the latest in Generative … AI and Large Language Models, placing us at the forefront of advanced technology in this field. As a Technical Lead, you’ll guide a talented team of AI engineers and software engineers, own the end-to-end development of new features, collaborate with cross-functional teams and contribute directly … to a product that transforms the way property is transacted globally. Ideal candidates will have: 5+ years in a leadership role such as Technical Lead or hands-on Engineering Manager, ideally within AI/ML, software development, or SaaS startups. Passionate about Generative AI and LLMs with a strong More ❯

real impact as you help shape the future of software security at one of the world's largest and most influential companies. As a Lead Security Engineer at JPMorgan Chase within the Cybersecurity and Technology Controls line of business, you are an integral part of a team that works … proof, audit defensible methods across multiple technical areas within various business functions. Are you ready to make a significant impact in cybersecurity? As a Lead Security Engineer at JPMorgan Chase, you'll be a key member of an engineering team that delivers software solutions to meet security requirements and … supporting the firm's business objectives in a collaborative environment that values diversity, equity, and inclusion. You will design, develop, and maintain applications using Python and SQL, build ETL/ELT pipelines, design and implement user interfaces, and architect cloud-based solutions on AWS. Job responsibilities Execute software engineering More ❯