Lead Software Engineer Python Java Jobs in London, UK

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Senior Full Stack Software Engineer (Python / React)

Skin + Me is a technology-driven start-up on a mission to revolutionise personalised skincare. We’ve delivered millions of treatments across our multi-brand ecosystem (Skin + Me, Hair + Me, Renew + Me), powered by a proprietary stack that runs everything from our e-commerce engine to our in-house manufacturin ...

Backend Software Engineer C# Python Market Data

Backend Software Engineer / Developer (C# Python Data Lakes) London / WFH to £150k+Are you a data savvy Backend Software Engineer?You could be joining a Hedge Fund with complex work and substantial bonus earning potential.As a Backend Software Engineer you will join a growing team ...

Lead Python Developer

Lead Python Developer – Climate Tech Non-Profit | Major Philanthropic Backing | Real Engineering Problems London (Hybrid, 2/3 days per week) Python, FastAPI, PostgreSQL, GCP, Docker I'm working with a fast-growing climate-tech non-profit tackling one of the most ...

Lead Python Developer

Lead Python Developer – Climate Tech Non-Profit | Major Philanthropic Backing | Real Engineering Problems London (Hybrid, 2/3 days per week) Python, FastAPI, PostgreSQL, GCP, Docker Please read the information in this job post thoroughly to understand exactly what is expect ...

Technical Lead Python

Technical Lead - Python Department: Global Security Services Employment Type: Permanent - Full Time Location: UK - London Reporting To: Richard Jacobs Description At CFC, this role sits right at the intersection of techn ...

Lead Python Developer

Job Title: Lead Python Developer Location: United Kingdom (Remote) Salary/Rate: £425 - £450 (Inside IR35) Start Date: Immediately Job Type: 12 Month Contract We are seeking an experienced Lead Python Developer to join a distrib ...

Technical Lead Python

Technical Lead - Python Department: Global Security Services Employment Type: Permanent - Full Time Location: UK - London Reporting To: Richard Jacobs Description At CFC, this role sits right at the intersection of techn ...

Lead Python Developer

As a Lead Python Developer at Fundment, you’ll lead a pod of 3 - 4 engineers, including yourself, combining hands‑on development (around 50% of your time) with technical leadership. You’ll drive execution, uphold delivery quality, and ensure the team builds reliable, maintainable systems that serve real bu ...

Lead Python Developer

Lead Python Developer – Climate Tech Non-Profit | Major Philanthropic Backing | Real Engineering Problems London (Hybrid, 2/3 days per week) Python, FastAPI, PostgreSQL, GCP, Docker I'm working with a fast-growing climate-tech non-profit tackling one of the most ...

Lead Python Developer

Lead Python Developer Climate Tech ?? London (Hybrid, 3 days per week) ?? Python, FastAPI, PostgreSQL, GCP, Docker I'm working with a fast-growing climate-tech non-profit tackling one of the most important infrastructure challenges in the energy transition. ...

Technical Lead Python

Technical Lead - Python Department: Global Security Services Employment Type: Permanent - Full Time Location: UK - London Reporting To: Richard Jacobs Description At CFC, this role sits right at the intersection of techn ...

Python Tech Lead

Job Description: Python Tech Lead Job Location: London, UK/ Hybrid Job Type: FTE/Contract Hybrid Familiar with front end and back-end development (Python) E ...

Lead Python Developer

Job Title: Lead Python Developer Job Location: London, UK, Remote (occasional visit to office) Job Type: FTE Job Description: Python Developer ...

Technical Lead Python

Technical Lead - Python At CFC, this role sits right at the intersection of technology, data, and real business impact. You’ll lead a talented engineering team and play a pivotal role in shaping how we design, build, and scale our platforms — from early concept through to production ...

Python Tech Lead

Job Description: Python Tech Lead Job Location: London, UK/ Hybrid Job Type: FTE/Contract Hybrid Familiar with front end and back-end development (Python) E ...

Technical Lead Python

Technical Lead - Python At CFC, this role sits right at the intersection of technology, data, and real business impact. You’ll lead a talented engineering team and play a pivotal role in shaping how we design, build, and scale our platforms — from early concept through to production ...

Lead Python Developer

Job Title: Lead Python Developer Job Location: London, UK, Remote (occasional visit to office) Job Type: FTE Job Description: Python Developer ...

Senior Backend Architect: Build Scalable Data & API Platforms

A leading technology company in Greater London seeks a Backend Software Engineer to lead the architecture and development of high-performance backend services. The role involves designing efficient data structures, building robust APIs, and collaborating with cross-functional teams. Ideal candidates will have 6+ ...

Lead MLOps Engineer — Scalable AI for Banking

A leading global financial services firm in London is seeking a Lead Software Engineer to design, build, and deploy scalable AI/ML solutions. You will work collaboratively with data scientists and product managers while developing secure, intelligent banking solutions. Candidates should have experience in Java, ...

Java Software Engineer Cloud, AI & Research Impact

Elsevier in Greater London is seeking a Software Engineer to enhance the quality of scientific research. As part of an Agile team, you will design and develop cloud-hosted applications while collaborating with stakeholders. The ideal candidate has proficiency in Java, JavaScript or TypeScript, and is familiar wi ...

Software Engineer III Backend Engineering Java/Kotlin

Job Description Out of the successful launch of Chase in 2021, we're a new team, with a new mission. We're creating products that solve real world problems and put customers at the center - all in an environment that nurtures skills and helps you realize your potential. Our team is key to ou ...

Senior Software Engineer, Java for Investments Platform

A global technology company in the UK is seeking a Product Manager to develop innovative financial solutions. You will define and shape the Wise Assets product, focusing on user experience and data-driven decisions. The role requires strong project coordination skills and experience in web applications developme ...

Senior Software Engineer II Treasury + Liquidity (Java)

Senior Software Engineer II - Treasury + Liquidity (Java) Full-time Compensation: GBP 105,000 - GBP 130,000 - yearly Wise is a global technology company, building the best way to move and manage the world’s money.Min fees. Max ease. Full speed. Wheth ...

Senior Software Engineer Liquidity & Treasury Systems (Java)

A global technology company is seeking a Senior Software Engineer II to enhance its Treasury and Liquidity systems. You will design, build, and maintain high-performance tools while collaborating with cross-functional teams. Ideal candidates will have strong Java and Spring Boot experience, a solid understanding ...

Java/AWS Software Engineer – Defence & Cyber (London)

A technology firm in the aerospace sector is seeking Software Engineers (Java/AWS) at all levels to join their London team. This role involves software development focused on secure, cloud-based solutions. Candidates will need strong Java skills and experience with AWS. The position offers flexible working arran ...

Java Software Engineer – Greenfield Trading Platform (London)

A dynamic sports betting startup in London is seeking Java Software Developers to join their innovative team. The role involves working with quantitative researchers and talented engineers to build data integrations and support systematic trading models. Candidates should have at least 3 years of Java developmen ...

Senior Software Engineer II Contacts Team Java

Senior Software Engineer II - Contacts Team - Java Full-time Compensation: GBP 105,000 - GBP 130,000 - yearly Wise is a global technology company, building the best way to move and manage the world’s money.Min fees. Max ease. Full speed. Whethe ...

Java/Kotlin Software Engineer Agile, TDD, Spring

Skills and Experience You possess strong development experience in Java and Kotlin. You have familiarity with Agile processes and Test-Driven Development (TDD). Technical Expertise You understand Computer Science, Object-oriented Programming (OOP), Design Patterns, Data Structures, a ...

Senior Software Engineer II Contacts Team Java

Company Description Wise is a global technology company, building the best way to move and manage the world’s money.Min fees. Max ease. Full speed. Whether people and businesses are sending money to another country, spending abroad, or making and receiving international payme ...

Backend Software Engineer Java/Spring, Cloud & DB

A Super Ambitious Startup in Greater London is seeking a Back End Software Engineer. The role involves implementing features that enhance the user experience on the platform, collaborating with teams, and solving technical challenges using Java and Spring frameworks. The ideal candidate will have a strong unders ...

Senior Software Engineer — High Throughput Java & Cloud

Hong Kong Exchanges and Clearing Limited (HKEX) is looking for a Vice President in London to engineer and enhance their Inter-Office Trading platform. The role demands proficiency in Java, experience with cloud infrastructures, and strong skills in distributed systems and data streaming. Applicants should have o ...

Front Office FX Software Engineer (C#/Java)

Crédit Agricole Group is seeking a Developer in Greater London. The successful candidate will work closely with traders and operational staff, enhancing front-office systems for foreign exchange. Candidates should have experience in C# or Java, some SQL knowledge, and a strong interest in financial markets. Resp ...

Staff Software Engineer Java React (Digital & Payments)

hackajob is collaborating with Sainsbury's DTD to connect them with exceptional professionals for this role. About The Role As a Staff Engineer, you'll be a hands‑on technical leader who drives engineering excellence across multiple teams. You’ll work on complex, high‑scale systems, desig ...

Senior Software Engineer II Contacts Team Java

Company Description Wise is a global technology company, building the best way to move and manage the world’s money. Min fees. Max ease. Full speed. Whether people and businesses are sending money to another country, spending abroad, or making and receiving international payments, ...

Senior Software Engineer Java Engine by Starling

At Engine by Starling, we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses on our technology. Engine is Starling's software-as-a-service (SaaS) business – the technology that powers Starling, and two years ago we split ...

Backend Software Engineer Java Kafka Tech Consultancy

Backend Software Engineer / Developer (Java Kafka) London / WFH to £90kAre you a Java technologist seeking a role where you can work on ground breaking technology, continually learning and progressing your career?You could be joining a global technology consultancy.What's in it ...

Senior Software Engineer (Java, Spring Boot, Microservices)

Job Level: 9UK Wide We are looking for a Senior Software Engineer who will be responsible for designing, developing, and deploying high-quality software solutions. You will work on complex software projects, contributing to the architecture, development, and improvement of software syste ...

Senior Software Engineer (Java, Spring Boot, Microservices)

Job Level: 9UK Wide We are looking for a Senior Software Engineer who will be responsible for designing, developing, and deploying high-quality software solutions. You will work on complex software projects, contributing to the architecture, development, and improvement of software syste ...

Backend Software Engineer Java Kafka Tech Consultancy

Backend Software Engineer / Developer (Java Kafka) London / WFH to £90kAre you a Java technologist seeking a role where you can work on ground breaking technology, continually learning and progressing your career?You could be joining a global technology consultancy.What's in it ...

Vice President, Fullstack Software Engineer (Java/React)

**About this role** **About this role** Are you interested in building innovative technology that shapes the financial markets? Do you like working at the speed of a startup, but want to solve some of the world’s most complex problems? Do you want to work with, and learn from, hands-on leaders ...

Full Stack Java/Python Engineer (London Hybrid, 6m Contract)

A leading digital consulting firm is seeking a Full Stack Java/Python Engineer for a 6-month contract starting ASAP. The role involves developing end-to-end full stack applications and requires proficiency in Java and Spring Boot, alongside experience with Python and modern frontend frameworks like React. The po ...

Senior Software Engineer — Agentic Infrastructure Architect

A leading technology company in London is seeking a Senior Software Engineer to lead the architecting of agentic infrastructure. You will partner with teams to design and implement solutions that enable agent automation across domains. The ideal candidate has 5+ years of experience in coding across multiple lang ...

Lead Java Developer

**Discover your future at Citi** Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact. **Job Ov ...

Lead Java Developer

**Discover your future at Citi** Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact. **Job Ov ...

Java Backend Lead

Eeze is a Malta-based, technology-driven company that has been developing world-leading online gaming platforms and solutions since 1999. Underpinned by a history that directly interconnects with the rise of online gambling, the company has been a key pioneer within the international market. Over the years ...

Lead Java Developer

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact. Job O ...

Lead Java Developer

For additional information, please review .**Discover your future at Citi**Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make ...

Lead Java Developer

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact. <h3 ...

Lead Java Developer

About the Job you are considering: We are seeking an experienced Lead Java Developer with CIAM Customer Identity and Access Management expertise to design, develop and lead the implementation of scalable and secure identity solutions. The ideal candidate will have strong technical leadership capa ...

Lead Java Developer

Job Type: Permanent Location: Glasgow, London, Whippany Number of hours: 40 hours per week – full time Ready to apply your experience and expertise as a Senior Java Developer? We have an exciting opportunity for you — Senior Java Developer! Collab ...

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