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Java Developer / Backend Engineer London / WFH to £100k. You could be progressing your career in a senior, hands-on Java Developer role at a global FinTech / CFD trading company that has been consistently voted as one of the UKs top employers. As a Java Developer you will design and develop complex

A leading markets organisation is expanding its E-Trading and Algorithmic Execution capability and is seeking experienced server-side Java engineers to join a cross-asset execution technology team. Design, build, and enhance low-latency Java-based trading and execution applications. Strong commercia

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.

Significant extensive hands-on coding experience in core Java, specializing in low-latency, high-throughput distributed applications. Basic proficiency in Linux system performance tuning and monitoring, with the ability to troubleshoot performance issues within the Java/Linux stack.

Full Stack Developer (React + Java). Java (Java 8+) with Spring Boot. Java-based REST APIs and data processing components.

We welcome applications from any industry and should you wish to apply your application will be reviewed for a multitude of Developer positions at varying levels.

Java Software Developer – SaaS Solutions. We have a fantastic brand-new opportunity for a Java Software Developer to join a fast-growing London-based technology SME that provides digital and SaaS solutions for a number of UK companies and government functions. They are looking for a motivated Java

We are seeking a Backend Java Developer to design and deliver high‑quality applications using Java/JEE and modern web technologies. Design, develop, and maintain backend applications using Java/JEE and related frameworks. Build backend components and services using Java‑based frameworks and lang

Strong experience in Java programming, especially in game development. Design, develop, and maintain 2D and 3D games using Java and libGDX. Collaborate with designers and developers to create engaging gameplay experiences.

Job Title: Full Stack Developer (Java). You will work with technologies such as React or Angular, Java/Spring Boot,. Build applications using languages such as Java,.

Senior Java Full Stack Developer. We are looking for a Senior Java Full Stack Developer to support the design, development, and maintenance of complex applications within a global engineering environment. Design, develop, and maintain scalable Java and Python-based applications.

A global consulting group is seeking an eFX Java Developer to join their London team. The ideal candidate will have extensive experience in Core Java and low-latency techniques, crucial for developing and maintaining high-performance electronic FX trading applications.

They are looking for an experienced Java Developer who will fulfil a hands‑on Senior/Lead role leading the next generation of Java Developers. They are looking for the following experience in Senior Java Developers:. Are you looking for a step up in your career to take on additional responsibiliti

Design, develop, and maintain applications using Java/JEE and related frameworks. Build web components using modern Java frameworks and languages. Work collaboratively with analysts, testers, architects, and fellow developers to ensure successful delivery.

Java Developer is responsible for designing, developing, and maintaining high-quality Java applications. Java DeveloperDeveloperLondonAugust 20, 202588400 - 98700 / monthFull TimeApplication ends: May 12, 2026Apply Now### Job DescriptionA Sr. Key Responsibilities* Design, develop, and implement

We are a global network of highly skilled developers, activists and professionals all on a mission to help solve the greatest threat of humankind.

If you have strong backend development experience and hands‑on exposure to modern Java technologies, this could be a great fit. Java, Spring Boot, Spring Framework, Hibernate. Design and develop scalable Java‑based applications.

Development & Coding: Collaborate with lead and also Lead the development with mid level developers and implementation of scalable and high-performance Java-based applications. Proven and with at least 7+ years’ experience as a Java Developer, with a focus on backend development. Mentoring: Provid

The Lead Java Developer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. Strong experience in Core Java, J2EE, Spring Framework. Proficient in latency measurement and performance optimiz

This is an unmissable opportunity for an experienced Java Quantitative Developer to join the crypto trading desk of one of the leading institutional digital asset firms in the market. Strong programming skills in Java in a front office environment. Java, Low Latency, Algo Trading, Pricing, Hedging,

Java (Kotlin) Developer (Agile, Test-Driven) – VP**Engineer the future of global finance. Foster a culture of quality through developer-led automated testing initiatives. Provide technical leadership and serve as advisor or coach to mid-level developers, analysts and grads.

We are seeking a Senior Java Developer to work at IBM, supporting our Public Sector and Defence clients by designing and building high‑quality applications using Java/JEE and modern web technologies. Design, develop, and maintain applications using Java/JEE and related frameworks. Experience devel

We are looking for a Java Full Stack Developer to design, develop, and enhance scalable workflow solutions. Programming (Core Java): Strong understanding of Core Java fundamentals, Collections Framework, multithreading and concurrency, Object-Oriented Programming (OOP) concepts, exception handling,

Significant extensive hands-on coding experience in core Java, specializing in low-latency, high-throughput distributed applications. Basic proficiency in Linux system performance tuning and monitoring, with the ability to troubleshoot performance issues within the Java/Linux stack.

A Senior Back-End Java Developer is required to support a major Government transformation programme focused on Identity and Access Management.

The team is growing fast and now we are looking for a strong and motivated FX Risk Lead Java Developer. Design, develop, and maintain Java‑based microservices for high‑throughput application. Strong hands‑on experience with Core Java and multithreading in high‑load system.

Proven experience as a Java Developer, with a strong grasp of Java. As a Senior Java Developer on our Air Content team, you will be an integral part of a dynamic and forward‑thinking group that powers the core of our business. If you’re passionate about Java development, and thrive in a collabor

LA International is seeking a Java Full Stack Developer for a 12-month hybrid contract based in Manchester, requiring 3 days onsite. The role involves building and maintaining Java-based microservices, developing front-end applications with Angular or React, and integrating workflows with external s

Strong Java 8+ experience, databases and web development in general. The Senior Backend Java Engineer within the Sports Data team is responsible for building and maintaining the backend services that ingest, process, and enrich sports data feeds used across the company’s products and partner integ

As a Java Developer you will design, develop and deliver a range of transformational projects for clients, mainly within the financial services sector and with a focus on Kafka messaging, migrating legacy systems to AWS and introducing CI/CD pipelines and cloud deployments. Java Developer Kafka API

Crédit Agricole SA is seeking a Developer based in London, UK. Candidates should have a strong desire to learn, excellent communication skills, and experience in C# or Java.

A technology company in the United Kingdom seeks an enthusiastic Java Developer Intern to join its development team. This role provides a unique opportunity to gain hands-on experience in software development, working on real-world projects while enhancing your Java programming skills in a professio

A leading international payments company in the United Kingdom is looking for a Junior-Mid Java Developer to design and implement scalable and high-performance applications. The ideal candidate will have a Bachelor's degree in Computer Science or related field and solid proficiency in Java and its t

Developer will have the opportunity to. Proven extensive background of commercial Java development.

Mentor junior developers and promote knowledge sharing within the team to uphold coding standards. Java Full Stack with Claude Gradle and React. Application Architecture, Architecture Patterns and Styles, Claude Code, Java, SOA and Microservices Based Architecture.

This role requires strong expertise in Java and the ability to work with traders in building business solutions through agile delivery. Responsibilities:*** Resolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry stan

Java, Spring Boot and interest in learning one other backend technology as well as becoming a full-stack developer.

A leading technology company is looking for a Senior Java Developer in the United Kingdom to contribute to a greenfield development project for a low-latency electronic trading platform. Candidates should have over 5 years of core Java experience and familiarity with trading systems.

Java backend development (Java 17+). Senior Java Developer - Multithreading/caching - sought by leading investment bank based in London - Contract. Java + Spring Boot / Spring Data / Spring Cloud.

FX Risk Java Developer - VPCiti’s Markets technology team is growing at lightning speed, and we’re looking for talented technologists to help build the future of global banking. Join us if you:* Feel passion about writing distributed, high performance and resilient Java applications* Want to

Strong Java programming expertise is required. Proven experience designing and building production‑grade APIs using microservices written in Java. Expert at writing clean, high‑performance, and maintainable code in Java.

A global payments company in Greater London is looking for a passionate Junior-Mid Java Developer to join their collaborative team. Ideal candidates will have a Bachelor's degree in Computer Science and solid proficiency in Java, with experience in frameworks like Spring. The role involves designing

A global technology transformation partner in London is seeking a Java Fullstack developer proficient in AngularJS and ReactJS. Candidates should have strong experience in Java, Spring Boot, and various databases.

Client Server is seeking a Java Developer in Surbiton, England, offering a salary between £50,000 and £60,000 per annum. Strong Java experience, familiarity with Agile methodologies, and a degree in a relevant field are essential.

We are looking to hire a Java Back-End Developer to join our Short-Term Desk Technology team. Design, build, and maintain high quality, scalable microservices using the latest versions of Java and modern frameworks. Gain hands on experience with modern Java, cloud engineering, and applied AI.

We are seeking an experienced FX Risk Java Tech Lead to drive technical excellence and team leadership in building high-performance risk calculation systems that directly impact global markets operations. Extensive professional Java development experience with deep expertise. Expert-level knowledge

Design, develop, and optimize low-latency, high-throughput backend systems using Core Java and SpringBoot. Core Java development with a focus on performance and memory optimization.

A leading software company in Greater London is seeking a senior Java or C++ developer to join their Software Development team in Surbiton.