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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

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.

Delta Capita is seeking a highly skilled Senior Rates Developer to join our Global Markets Technology practice. Implement high‑quality Java server‑side components, applying industry‑standard development patterns. Strong server‑side Java development experience, including multithreading.

We are looking for a Java Developer with experience in. Java-based backend applications.

Net, C#, Java, Salesforce, SharePoint, Dynamics CRM, Sitecore, ReactJS, Angular, Docker, Azure, Azure DevOps and Octopus, giving you the opportunity to learn and work with many different languages.

We are recruiting for a Senior Java / Kotlin Engineer. Key skills: strong experience in Java or Kotlin (back-end), and comfortable with TDD (test-driven development). Work embedded in a cross-functional team with software developers, technical product owners and testers all working together towards

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. Oracle Certified P

Google Professional Cloud Developer. Microsoft Azure Developer Associate (AZ‑204). Application Developer Certification.

Design, develop, and maintain backend applications using Java/JEE and related frameworks. Build backend components and services using Java‑based frameworks and languages. Collaborate with analysts, testers, architects, and fellow developers to deliver quality outcomes.

Polyglot full‑stack developer - Java + React.

Strong experience in Core Java, J2EE, Spring Framework. Proficient in latency measurement and performance optimization of Java based platforms with focus on JVM tuning.

McNally Recruitment Ltd is seeking a Senior Java Developer focused on crypto exchange connectivity for their trading technology client. This hands-on role involves building and optimizing low-latency trading systems and requires a strong background in Java or C/C++.

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

Hyra is seeking a Java Developer to work on a critical programme for a major financial services client in the Greater London area. The role involves designing and building a new consolidated Trade Capture and Post-Trade Processing platform, enhancing backend services with Java and Scala, and partici

DXC Technology is seeking a Java Platform Developer to work on-site in Gloucester or Central London. Essential skills include Java, C#, and C++ development, along with experience in agile practices and various technologies such as Docker and Kubernetes.

Proven experience as a Back‑End Developer with a strong focus on Java. Design, develop, and deploy stable, well‑tested fixes using Java and related frameworks.

Senior Java Developer, Java Software Engineer, Java 17, Spring Boot, Maven, Git, GitHub Actions, SQL, Microservice architecture, Kafka Streams, Kubernetes, React, Typescript – Technical lead on project – Fully remote if needed – £70K. Develop and unit test Java software applications. Expertis

Crédit Agricole SA is seeking a Developer in London to work closely with front office users in foreign exchange trading. The ideal candidate will have coding experience in C# or Java, strong analytical thinking skills, and a keen interest in Financial Services.

Team is growing fast and now we are looking for a strong and motivated FX Risk Lead Java Developer. Key Responsibilities:*** Design, develop, and maintain Java-based microservices for high-throughput application* Integrate and optimize Apache Ignite based solution: in memory data grid for FX trades

Senior Backend Java Developer – London. The role focuses on contributing to a major architecture rebuild in Java Spring Boot within a cloud‑native environment, with strong scalability, reliability and real‑time stock/price synchronization challenges. Lead the architectural rebuild of the exist

As a Java Developer at CGI, you’ll design and deliver high‑quality software solutions that help our clients solve complex business challenges and achieve measurable outcomes. Working with modern Java and Spring Boot technologies, you’ll contribute to building scalable, enterprise‑grade appli

Java, Kotlin, Microservices, Spring, SpringBoot. Seeking a Specialist with 5 to 7 years of experience in Java Frameworks and Kotlin to develop scalable and efficient backend solutions using Microservices Spring and Spring Boot. Develop and maintain robust Java applications using Spring and Spring Bo

We are seeking a Backend Java Developer to design and deliver high‑quality applications using Java/JEE and modern web technologies. Build backend components and services using Java‑based frameworks and languages. Collaborate with analysts, testers, architects, and fellow developers to deliver qu

Experis - ManpowerGroup in London is seeking a Snr eTrading Developer FX eFX for a contract role until 30/12/2026. Applicants must have solid experience in Java server-side development, with a focus on algorithmic trading, multi-threaded systems, and agile delivery.

Information Tech Consultants is seeking a skilled Java Developer to join their onsite team in London, United Kingdom. The ideal candidate will have strong backend development experience with modern Java technologies such as Spring Boot and Hibernate. Responsibilities include designing scalable Java

We have an exciting opportunity for experienced Java developers to join our team!. Expert understanding of Java, knowledge of other JVM languages such as Kotlin is a plus. Modern Web Frameworks such as Spring or JavaEE and others.

We are seeking a Senior Java Developer to join our Core Platform Team. As a Senior Java Developer, you will architect and develop backend systems that power our games, player management, reporting tools, and third‑party integrations. You will work closely with Product Owners, Frontend Developers,

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.

Act as a hands‑on Java developer, contributing to the design, build, testing, and rollout of new medical services at scale. Previous development experience with Java 1.

Proven experience with modern Java versions (Java 11/17+). We are seeking a Java Developer with strong Front Office Foreign Exchange (FX) technology experience to join a major strategic modernisation programme. Deliver new Java components while ensuring compatibility and integration with existing C+

A leading recruitment agency is seeking an experienced Java Developer for a 12-month remote contract. Successful candidates will possess strong backend development skills, particularly in Java and Spring Boot, and ideally hold an Active SC Clearance within the public sector.

Play a leading role in migrating and rebuilding core architecture in Java Spring Boot to align with a composable, cloud‑native landscape. Java Spring Boot – confirmed level proficiency for the architectural rebuild.

Technologies: Docker, OpenShift, Python, JAVA, JBoss, C++, ActiveMQ / RabbitMQ, Apache. Developing software and applications in Java with OO development skills in C#, C++.

Feel passion about writing distributed, high performance and resilient Java applications. Core Java and multithreading knowledge (jdk11 and upper).

Build a RESTful API layer in Java implementing full catalogue functionality:. MongoDB, including querying, aggregation pipelines, and integrating MongoDB into Java application layers.

Senior Java Developer – Middle Office Transformation in Asset Management.

Pharmacy2U, the nation's largest online pharmacy, is looking for a Java Developer to enhance medical services and optimize existing systems. Candidates should have proficiency in Java 1.

Submit detailed post‑burst surveys, delivering insights on model performance and developer experience. Experience designing or evaluating experimental tooling and developer workflows. Skills: spring boot,java,spring,schema,data,models,data validation,database,research,security,graphql.

As a Senior Java Developer, you will lead the design and development of scalable Java‑based applications, mentor junior engineers and collaborate with cross‑functional teams to deliver high‑quality software. Ready to apply your experience and expertise as a Senior Java Developer?. We have an e

This is an opportunity to work at the heart of a world‑class investment platform where.You’ll be building and owning systems that directly support portfolio managers and senior risk leaders, in an environment that values engineering excellence, speed, and thoughtful design.If you enjoy solving c

The Backend Engineer will contribute to the design, development, and deployment of cloud‑native backend services using Java, Spring Boot, and Microsoft Azure. Develop and maintain microservices using Java, Spring Boot, and Go in line with agreed design standards. Hands‑on experience with Java, S

Build a RESTful API layer in Java implementing full catalogue functionality:. MongoDB, including querying, aggregation pipelines, and integrating MongoDB into Java application layers.

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

UK (Hybrid / Onsite as required).You will work in an agile engineering team alongside senior engineers, architects, and product partners to deliver secure, reliable, and well‑tested software.This role focuses on technical contribution and engineering excellence, with opportunities to expand owners

Act as a hands‑on Java developer, contributing to the design, build, testing and rollout of new medical services at scale. Previous development experience with Java 1.

McNally Recruitment Ltd is looking for a Senior Java Developer for a trading technology firm focusing on crypto markets. Candidates should have a strong background in Java (or C/C++), and experience with crypto exchange connectivity.

Onyx-Conseil is seeking a Java Developer to design and deliver high-quality software solutions using Java and Spring Boot. You're expected to have experience with modern Java technologies and the ability to obtain a UK Security Clearance.

Ownership and delivery on components (Java/Kotlin) within the Core Prime Brokerage platform. Implement and maintain developer‑led automated testing solutions. Java & Test‑Driven Development are essential.