Software Engineer Python Java Data Jobs in London, UK

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Data Science Principal

Description You will be developing tools and technologies that leverage Data from a variety of sources to increase supply chain efficiencies and provide value to our customer. This is a high‑impact leadership role where you will be delivering exceptional data science. You’ll lead and develop ...

Data Science Principal

Description You will be developing tools and technologies that leverage Data from a variety of sources to increase supply chain efficiencies and provide value to our customer. This is a high‑impact leadership role where you will be delivering exceptional data science. You’ll lead and develop ...

Data Science Principal

Description You will be developing tools and technologies that leverage Data from a variety of sources to increase supply chain efficiencies and provide value to our customer. This is a high‑impact leadership role where you will be delivering exceptional data science. You’ll lead and develop ...

Senior Data & AI Engineer — Flexible, Impactful Pipelines

University College London Hospital is seeking a Senior Software Engineer to lead the design and delivery of secure, high-quality data pipelines supporting AI-ready platforms. The role involves technical leadership, mentoring, and implementing software engineering practices. Competitive salary from £66,274 to £73 ...

Senior Data & AI Engineer — Flexible, Impactful Pipelines

University College London Hospital is seeking a Senior Software Engineer to lead the design and delivery of secure, high-quality data pipelines supporting AI-ready platforms. The role involves technical leadership, mentoring, and implementing software engineering practices. Competitive salary from £66,274 to £73 ...

AI Solutions Engineer GenAI Platform Startup

Do you want to build AI systems used daily by legal and financial clients? Have you ever taken a GenAI POC all the way into production? Are you ready to work directly with users and shape real-world AI workflows? A London-ba ...

AI Solutions Engineer GenAI Platform Startup

Do you want to build AI systems used daily by legal and financial clients? Have you ever taken a GenAI POC all the way into production? Are you ready to work directly with users and shape real-world AI workflows? A London-ba ...

Junior Java Full Stack Associate Consultant London

Junior Java Full Stack-Associate Consultant - London Reference Code: -en_GBContract Type: PermanentProfessional Communities: Strategy & TransformationROLE DETAILS SBU - Invent CU - Business Technolog ...

Junior Java Full Stack Associate Consultant London

Junior Java Full Stack-Associate Consultant - London Reference Code: -en_GBContract Type: PermanentProfessional Communities: Strategy & TransformationROLE DETAILS SBU - Invent CU - Business Technolog ...

Energy Trading Analyst (12 Month FTC)

ABOUT ZENOBE Our mission is to make clean power accessible. We are passionate about making a positive impact on communities and the environment where we work. We’re designing, financing, building and operating the world’s most sophisticated battery systems to enable the uptake of more renewable po ...

Energy Trading Analyst (12 Month FTC)

ABOUT ZENOBE Our mission is to make clean power accessible. We are passionate about making a positive impact on communities and the environment where we work. We’re designing, financing, building and operating the world’s most sophisticated battery systems to enable the uptake of more renewable po ...

Business Analyst United Kingdom (Hybrid)

Business Analyst – United Kingdom (Hybrid) Location: City of London, England, United Kingdom Our organization is seeking a highly capable Business Analyst to support the delivery of installable desktop software products that drive essential operational processes. The role involves underst ...

Senior Frontend Developer

This range is provided by Miller Maxwell Ltd. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Key Responsibilities for the Senior Frontend Developer: Collaborate with an experienced front-office ...

Junior Software Developer (+ Equity) at Joinkyber.com

Job Title Junior Software Developer Company Description Joinkyber.com – Pre‑seed EF Fall 2025 AI startup Job Description As the first engineering hire at Kyber, you will build the real‑time AI decision‑making platform that orchestrates airport ground operations ...

Quantitative Developer Energy London

We are seeking a highly skilled and motivated Quantitative Engineer with a focus on Commodities Trading, and ideally LNG. You will be part of a small but growing team where you will work directly with the business on complex technology trading problems. You will collaborate with Analysts, Traders and Softw ...

Senior Cloud Engineer

Method Resourcing are supporting a high-quality, regulated financial services organisation in the hire of a Senior Cloud Engineer to support a major migration and modernisation programme. The role: The primary purpose of this role is to design, run, and continually enhance a cloud platfor ...

Back End Developer / SRE Java JVM Fintech

Back End Developer / SRE (Java JVM) London / WFH to £110kAre you a Back End Developer / SRE with a strong knowledge of Java and JVM internals?You could be progressing your career in an impactful role at a global Fintech that has been consistently voted as one of the UKs top employers. ...

Java (Kotlin) Developer (Agile, Test Driven) – VP

Java (Kotlin) Developer (Agile, Test-Driven) – VP Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. F ...

FX Risk Lead Java Developer Vice President

Citi’s Markets technology team is growing at lightning speed, and we’re looking for talented technologists to help build the future of global banking. Our teams are creating innovations used across the globe. As the world’s most global bank, Citi provides an opportunity to touch every corner of the globe a ...

FX Risk Lead Java Developer Vice President

Citi’s Markets technology team is growing at lightning speed, and we’re looking for talented technologists to help build the future of global banking. Our teams are creating innovations used across the globe. As the world’s most global bank, Citi provides an opportunity to touch every corner of the globe a ...

Senior Java Architect Trading Platforms & Real Time

Stanford Black Limited in London is looking for a hands-on leader in Investment Engineering to design and build scalable trading systems for the Credit desk. The role involves overseeing the full development lifecycle and working directly with portfolio managers. Ideal candidates have strong Java skills, experie ...

Lead Java Architect: Scalable, Secure Microservices & DDD

LSEG is seeking a Manager to lead the design and governance of its Java platforms. This pivotal role involves architectural leadership, coaching senior engineers, and ensuring high engineering standards. The successful candidate will have deep expertise in Java, architectural patterns, and experience with cloud ...

Head of Architecture – Payments (Java/AWS/AI)

Client Server is seeking a Head of Architecture to lead the modernization of their financial Tech for Good product. This role involves collaborating with Team Leads to design the architecture for large-scale cloud-based systems using Java and AWS. The ideal candidate will have experience in banking platforms, ag ...

Senior Java Developer eSC or eDV required

At IBM Consulting UK FutureNow, you’ll build a career at the forefront of hybrid cloud and AI, working with leading clients across the public and private sectors. You’ll collaborate with top industry professionals, gain hands on experience with cutting edge technologies, and deliver solutions that c ...

Senior Trading Systems Architect, Low Latency Java

Crypto Pro Network, located in Greater London, is seeking a Trading Systems Engineer. This role involves designing and building high-performance trading systems, optimizing technology stacks, and leveraging AI to improve business performance. Ideal candidates should have excellent Java skills, experience with lo ...

Java Developer – Hybrid, Cloud & Microservices (GCP/AWS)

Pharmacy2U, the nation's largest online pharmacy, is looking for a Java Developer to enhance medical services and optimize existing systems. The role is primarily hybrid, requiring visits to the office in central London twice a month. Candidates should have proficiency in Java 1.8+, Spring Boot, and cloud enviro ...

FX Risk Java Tech Lead — Hybrid/Remote

Citi in Greater London is seeking an experienced FX Risk Java Tech Lead to drive technical excellence in developing high-performance risk calculation systems. Responsibilities include leading technical teams, guiding system architecture, and ensuring delivery of mission-critical infrastructure. The ideal candida ...

Senior Java Developer & Tech Lead — Hybrid London

Synechron is looking for a Senior Java Developer to lead the development of high-performance applications in London. You will manage a team, drive the design and implementation processes, and ensure the quality of solutions. The ideal candidate will have strong expertise in Core Java, modern UI frameworks like A ...

Senior Java Lead — Hands On, Cloud Microservices

Understanding Recruitment is seeking an experienced Senior Java Developer to lead a team in London. In this role, you will manage a hands-on team of Java Developers, making architectural decisions and mentoring others. The ideal candidate has strong skills in multithreading, product-led development, and experien ...

VP Java Platforms Lead FX Tech & Markets

Citi is looking for an experienced Applications Developer to join their FX Technology group in Greater London. You'll be responsible for leading application development projects and managing a team, working closely with stakeholders in a fast-paced environment. Ideal candidates will have a strong background in J ...

Backend Java Developer Public Sector | Flexible Work

IBM is seeking a Backend Java Developer in the Greater London area to design and deliver high-quality applications using Java/JEE and modern web technologies. You will develop secure, reliable backend solutions, collaborate with technical teams, and contribute to DevOps practices. The role offers benefits such a ...

Senior Java Architect: GenAI & Cloud Native Solutions

Multinational Company is seeking a Full Stack Architect with expertise in Java SpringBoot and React. The role involves leading architecture design and building GenAI solutions on AWS. Ideal candidates should have strong experience in microservices, REST APIs, and AWS services, along with knowledge of frameworks ...

Hybrid Java Architect: Azure, Spring Boot & Microservices

Hexaware Technologies is seeking a highly skilled Java Architect to join their team in London. This role requires expertise in Java (17+), Spring Boot, and Angular, with significant experience in Azure cloud services. The Java Architect will design and implement distributed systems, drive architectural direction ...

Lead Java Developer FX Options Realtime Risk

Lead Java Developer - FX Options Realtime Risk Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From ...

Lead Java Developer FX Options Realtime Risk

Lead Java Developer - FX Options Realtime Risk Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From ...

Senior Java Developer eSC or eDV required

At IBM Consulting UK FutureNow, you’ll build a career at the forefront of hybrid cloud and AI, working with leading clients across the public and private sectors. You’ll collaborate with top industry professionals, gain hands on experience with cutting edge technologies, and deliver solutions that c ...

Senior Java Lead — Hands On, Cloud Microservices

Understanding Recruitment is seeking an experienced Senior Java Developer to lead a team in London. In this role, you will manage a hands-on team of Java Developers, making architectural decisions and mentoring others. The ideal candidate has strong skills in multithreading, product-led development, and experien ...

VP Java Platforms Lead FX Tech & Markets

Citi is looking for an experienced Applications Developer to join their FX Technology group in Greater London. You'll be responsible for leading application development projects and managing a team, working closely with stakeholders in a fast-paced environment. Ideal candidates will have a strong background in J ...

Backend Java Developer Public Sector | Flexible Work

IBM is seeking a Backend Java Developer in the Greater London area to design and deliver high-quality applications using Java/JEE and modern web technologies. You will develop secure, reliable backend solutions, collaborate with technical teams, and contribute to DevOps practices. The role offers benefits such a ...

FX Risk Java Tech Lead — Hybrid/Remote

Citi in Greater London is seeking an experienced FX Risk Java Tech Lead to drive technical excellence in developing high-performance risk calculation systems. Responsibilities include leading technical teams, guiding system architecture, and ensuring delivery of mission-critical infrastructure. The ideal candida ...

Senior Java Developer & Tech Lead — Hybrid London

Synechron is looking for a Senior Java Developer to lead the development of high-performance applications in London. You will manage a team, drive the design and implementation processes, and ensure the quality of solutions. The ideal candidate will have strong expertise in Core Java, modern UI frameworks like A ...

Senior Java Architect Security Cleared, London/Birmingham

LA International seeks an experienced Java architect with at least 10 years of experience to join our team. Located in the Greater London area, the ideal candidate will demonstrate strong communication skills and a commitment to fostering an inclusive workplace. As a leading provider of security-cleared talent, ...

Lead Java Developer FX Options Realtime Risk

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we ...

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