158,487+ Lead Software Engineer Python Api Fintech Jobs in London, UK — Local Employers Hiring June 2026

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Lead Software Engineer Python API Fintech

Lead Software Engineer / Developer London / WFH to £120kAre you a skilled a backend focused Python technologist with team leadership experience?You could be progressing your career at a well-funded and profitable FinTech start-up.As a Lead Software Engineer you'll head up a small, ...

Lead Software Engineer Python API Fintech

Lead Software Engineer / Developer London / WFH to £120kAre you a skilled a backend focused Python technologist with team leadership experience?You could be progressing your career at a well-funded and profitable FinTech start-up.As a Lead Software Engineer you'll head up a small, ...

Lead Software Engineer Java/Python, Scalable FinTech

J.P. MORGAN is seeking a Lead Software Engineer within the Commercial & Investment Bank's Equities Technology team in Greater London. This role requires 12+ years of experience in software engineering, along with expertise in Java, Python, and SQL. The candidate will be responsible for delivering high-quality pr ...

Senior Software Engineer Python API AWS

Senior Software Engineer / Developer (Python API AWS SaaS) London / WFH to £100k Are you a senior technologist with strong Python, API and AWS cloud experience? You could be progressing your career in an impactful, hands-on engineering position for a successful and growing technology comp ...

FinTech Software Engineer – Python, Kubernetes, Banking

A leading consulting firm is seeking a Software Engineer to join a global finance team within an international bank located in Canary Wharf. This role involves supporting strategic decision-making and collaborating closely with modelling teams. Ideal candidates must have extensive experience in software applicat ...

Go Software Engineer Fintech API & Distributed Systems

Upvest in Greater London is looking for a developer passionate about fintech to enhance their investment API. The role involves using cutting-edge technologies like Go, Docker, and Kubernetes to design fault-tolerant systems. Ideal candidates have experience in fintech and event-driven architectures. Upvest offe ...

Senior Software Engineer Fintech API & Cloud Platform

Requirements You're highly proficient in building robust, scalable Java services ,You have hands-on experience designing, building, and running applications in AWS ,You have built high-performance applications using Spring framework ,SQL experience (ideally with Ora ...

Software Engineer – FinTech Trading Systems (Java/Python)

Aspect Capital is an award-winning systematic hedge fund based in London. We manage over $8 billion of client assets, with technology playing a critical role in the success of our business. We are looking for a Software Engineer to join our Software Development team. This is an opportunity to work with ...

Lead Software Engineer | Golang | FinTech

Lead Software Engineer (Golang) – Real Time Data Platform This is a hands‑on Lead role focused on designing and building distributed backend systems that ingest, process and serve high‑throughput data, for a well established FinTech. The platform is already live, but there’s a clear need ...

Lead Software Development Engineer API Platform

Lead Software Development Engineer - API Platform Mastercard Developers ( is the primary API platform for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is responsible for delivering an experience that ensures developers can quickly find the r ...

Data Engineer Python FinTech

Data Engineer (Python LLM API) London / WFH to £100kAre you a highly technical Data Engineer with FinTech / finance experience looking for an opportunity to progress your career?You could be joining a scaling FinTech, the core product is a private equities / alternative investment managem ...

Data Engineer Python FinTech

Data Engineer (Python LLM API) London / WFH to £100kAre you a highly technical Data Engineer with FinTech / finance experience looking for an opportunity to progress your career?You could be joining a scaling FinTech, the core product is a private equities / alternative investment managem ...

Lead / Senior Software Engineer Python

3 weeks ago Be among the first 25 applicants Vortexa is a fast‑growing international technology business founded to solve the immense information gap that exists in the energy industry. By using massive amounts of new satellite data and pioneering work in artificial intelligence, Vortexa creates an ...

Lead Software Engineer Golang / Python

Be an integral part of a team that's constantly pushing the envelope to enhance, build, and deliver top-notch technology products. As a Lead Software Engineer at JPMorgan Chase within the Global Banking Platform (GBP), you are an integral part of a team that works to enhance, build, and deliver tru ...

Lead Software Engineer Python / Java

Join us and elevate your software engineering career. You’ll design market-leading technology products that drive innovation in financial services. At JPMorganChase, you’ll collaborate with talented teams, grow your skills, and make a real impact. We value your expertise and offer a dynamic environment whe ...

Lead Software Engineer (Python) US

Electronic circuit boards are at the core of current and future inventions - space travel, medical robotics, autonomous transportation, augmented reality, bio-engineering. Yet today designing an electronic circuit board is an extremely manual, long and tedious process. At Circuit Mind we believe that this ...

Lead Software Engineer Python / Java

Job Description Join us and elevate your software engineering career. You’ll design market‑leading technology products that drive innovation in financial services. At JPMorganChase, you’ll collaborate with talented teams, grow your skills, and make a real impact. We value your expertise and offer ...

Lead Software Engineer Python / Java

Join us and elevate your software engineering career. You’ll design market-leading technology products that drive innovation in financial services. At JPMorganChase, you’ll collaborate with talented teams, grow your skills, and make a real impact. We value your expertise and offer a dynamic environment where ...

Lead Software Engineer Python / Java

Join us and elevate your software engineering career. You’ll design market-leading technology products that drive innovation in financial services. At JPMorganChase, you’ll collaborate with talented teams, grow your skills, and make a real impact. We value your expertise and offer a dynamic environment where ...

Senior Software Engineer: Scalable .NET/Python FinTech Stack

Join Barclays as a Senior Software Engineer, where you will design and build scalable C# (.NET/.NET Core) and Python-based calculation engines to drive efficiency and enable dynamic client billing. You will develop robust data models in SQL Server, implement complex business logic, and deliver low-latency ...

FinTech C++/Python Senior Software Engineer Low Latency

N P Associates is looking for a Senior Software Engineer / Principal Software Engineer with over 8 years experience in C++ and a strong background in Python, especially in the Financial and Banking sectors. The role involves developing high-performance, low-latency code for complex trading systems. Responsibilit ...

Lead Software Engineer Crypto FinTech & Cloud

A leading financial technology company in Greater London is seeking a skilled software engineer to join their team. The role involves developing and maintaining financial platforms, working closely with product managers, and integrating crypto services. Ideal candidates will have extensive software engineering e ...

FinTech Senior Software Engineer & Tech Lead

Ports North is seeking a Senior Software Engineer located in London to lead a development team in creating a market-leading OTC derivatives solution. You will drive Agile processes and manage the product backlog while mentoring team members. The ideal candidate will bring over 10 years of software engi ...

FinTech Senior Software Engineer & Tech Lead

Ports North is seeking a Senior Software Engineer located in London to lead a development team in creating a market-leading OTC derivatives solution. You will drive Agile processes and manage the product backlog while mentoring team members.The ideal candidate will bring over 10 years of software engin ...

Python Software Engineer

London - United Kingdom # Python Software Engineer## Overview## Job descriptionPrima could be the place for you.Since 2015, we’ve been using our love of data and tech to rethink motor insurance and bring drivers a great experience at a great price. Our story began in Italy, where we’ve quickly become the number ...

Software Engineer Python

About Vortexa Vortexa is a fast-growing international technology business founded to solve the immense information gap that exists in the energy industry. By using massive amounts of new satellite data and pioneering work in artificial intelligence, Vortexa creates an unprecedented view on the gl ...

Python Software Engineer

Job title: Software Engineer Client: Not specified Salary: £120,000 per annum + Benefits Location: London (Hybrid / Flexible Working) The Role We’re supporting a rapidly growin ...

Python Software Engineer

Old Mission is a global proprietary trading firm that leverages state-of-the-art technology and research to identify and execute profitable trading strategies across multiple asset classes around the world. Our offices in Chicago, New York, and London are all composed of naturally-curious individua ...

Python Software Engineer

Join to apply for the Software Engineer (Python)- UK role at Prima Join to apply for the Software Engineer (Python)- UK role at Prima Get AI-powered advice on this job and more exclusive features. Are you looking for ...

Python Software Engineer

Python Software Engineer – Fullstack | Green Tech £40,000-65,000 Python, TypeScript/Reactjs - AWS Hybrid - Essex Energy-tech company Real-world product solving complex problems in industrial energy systems We’re partnered with a fast-growing green-t ...

Python Software Engineer

About the role We’re looking for a Software Engineer to help us build high-quality, reliable backend systems that accelerate our mission. This role sits within our mortgage engineering team. You’ll work across the backend stack, owning features end to end: from shaping product and technical ...

Software Engineer ( Python )

Design, develop, test, and support robust, production-ready software solutions , adhering to modern engineering best practices. Build and maintain microservices-based systems , with a strong focus on scalability, resilience, and performance. Develop and optimise scal ...

Python Software Engineer

Location: On-site London, 5 days per weekSummary:My client is a world-class prop trading firm looking for a Python Software Engineer to join a global multi-asset trading team.This role offers the unique opportunity to influence the design and architecture of expa ...

Python Software Engineer

Description Building trusted markets – powered by our people.At Cboe Europe, we inspire our people to solve complex challenges together because what we do matters. We providethe financialinfrastructure that powers the global economy. As a leading provider of market infrastru ...

Python Software Engineer

Description Building trusted markets – powered by our people.At Cboe Europe, we inspire our people to solve complex challenges together because what we do matters. We providethe financialinfrastructure that powers the global economy. As a leading provider of market infrastru ...

Python Software Engineer

Location: On-site London, 5 days per weekSummary:My client is a world-class prop trading firm looking for a Python Software Engineer to join a global multi-asset trading team.This role offers the unique opportunity to influence the design and architecture of expa ...

Senior Lead Software Engineer Cloud & API Architecture

Senior Lead Software Engineer – JPMorgan Chase Are you ready to shape the future of technology at a leading global financial institution? Join us and use your expertise to drive impactful solutions that power our business and support our clients worldwide. Here, you'll collaborate with talented p ...

Lead Software Engineer – Hybrid, Cloud & API Leader

Lead Software Engineer C#, .NET, SQL, API integration, Kubernetes, Docker.Dublin, IrelandPerm Role: €90,000 - €115,000 Harrington Starr has partnered with a Global Financial Technology company, seeking to hire a Lead Engineer, with extensiveexperience working with highly ...

Senior Lead Software Engineer Cloud & API Architecture

Are you ready to shape the future of technology at a leading global financial institution? Join us and use your expertise to drive impactful solutions that power our business and support our clients worldwide. Here, you'll collaborate with talented professionals, grow your skills, and make a real differenc ...

Senior Lead Software Engineer Cloud & API Architecture

Job Description Are you ready to shape the future of technology at a leading global financial institution? Join us and use your expertise to drive impactful solutions that power our business and support our clients worldwide. Here, you'll collaborate with talented professionals, grow your skills, ...

Senior Lead Software Engineer Cloud & API Architecture

Job Description Are you ready to shape the future of technology at a leading global financial institution? Join us and use your expertise to drive impactful solutions that power our business and support our clients worldwide. Here, you’ll collaborate with talented professionals, grow your skills, ...

Lead Software Engineer – Hybrid, Cloud & API Leader

Lead Software EngineerC#, .NET, SQL, API integration, Kubernetes, Docker.Dublin, IrelandPerm Role: €90,000 - €115,000Harrington Starr has partnered with a Global Financial Technology company, seeking to hire a Lead Engineer, with extensiveexperience working with highly ...

Lead Software Engineer Python and React

Lead Software Engineer - Python and React Join to apply for the Lead Software Engineer - Python and React role at JPMorganChase . Step into a high-growth environment where your expertise in AI/ML and AWS will help shape and deliver game-changing business outcomes. A ...

Lead Software Engineer Python Vice President

We have an exciting opportunity to join an agile development team working on a top-tier Delta One platform that empowers the front office to create, manage, and report on equities-based baskets. You will collaborate with other skilled engineers worldwide and gain exposure to the entire portfolio management ...

Lead Software Engineer – Python, AIML, Cloud

J.P.MorganChase is seeking a Lead Software Engineer with expertise in AWS and Python, and a passion for Machine Learning, to help engineer and deploy innovative ML solutions into production. You will collaborate with the Applied AI/ML group and technology teams across the firm, contributing to both new and ...

Lead Software Engineer – Python, AIML, Cloud

J.P.MorganChase is seeking a Lead Software Engineer with expertise in AWS and Python, and a passion for Machine Learning, to help engineer and deploy innovative ML solutions into production. You will collaborate with the Applied AI/ML group and technology teams across the firm, contributing to both new and ...

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