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    Senior AI Backend Engineer — Java/Kotlin + LLM

    Experis Manpower Group busca un desarrollador backend especializado en AI para unirse a un equipo en el Reino Unido. La función requiere al menos 5 años de experiencia en desarrollo backend con JAVA, así como en la creación de API e integración con servicios de IA y modelos de lenguaje grande (LLM). El ...

    Java Backend Engineer Secure, DV Cleared & Microservices

    Forwardrole is looking for a Java Developer to join a small engineering-led team dedicated to delivering secure software and data capabilities in sensitive National Security environments. The ideal candidate will have strong Java backend development experience and work across modern microservices archi ...

    Senior Java Web Engineer — London (12m Contract)

    Experis - ManpowerGroup is seeking a Software Developer to work in London, primarily focused on Java and Web technologies. The role includes designing and supporting enterprise-grade applications while adhering to modern engineering standards. Candidates should have strong experience in Java/JEE, a bac ...

    Senior Backend & AI Engineer Java, LLM APIs

    Experis Manpower Group busca un desarrollador backend/AI en Reino Unido. Se requiere al menos 5 años de experiencia en desarrollo backend con JAVA, así como experiencia en la creación de API y servicios basados en inteligencia artificial. El candidato ideal debe tener conocimientos en integración con p ...

    Automation Test Engineer – Hybrid (Java, API & Salesforce)

    TDS is seeking an Automation Test Engineer to join our Technology team in Hemel Hempstead. This full-time, permanent position offers a salary of £60,000 per annum and follows a hybrid working policy, requiring a minimum of 2 days in the office each week. Key responsibilities include test case design, a ...

    Senior Java Engineer (Kafka, Kubernetes, SpringBoot) – Banking

    Senior Java Engineer (Kafka, Kubernetes, SpringBoot) - Banking - London/Hybrid Daily rate: €600 - €700 (inside IR35) Duration: 12 months Start: ASAP My client is looking for a Senior Java Engineer to join on a contract basis. They need someone with strong core Java expertise as the role prima ...

    Java Engineer: Spring Boot, Kafka & Production Support

    Capgemini is seeking a Java Developer in Glasgow to enhance enterprise Java applications. This role will involve delivering new functionalities, resolving defects, and ensuring system stability. The ideal candidate should have strong Java development skills, experience with Spring Boot, and familiarity ...

    Senior Java Microservices Engineer (Cloud, TDD/BDD)

    JD ROSS is looking for a Junior Java Developer for a 12-month contract based in Newcastle, working in a hybrid model. The role offers £33,000 a year with responsibilities including developing microservices and collaborating with cloud teams. Candidates should have experience in Java 21, TDD, and the ab ...

    Senior Java Engineer: Kafka, Kubernetes, SpringBoot Hybrid

    Salt Digital Recruitment is seeking a Senior Java Engineer for a contract role based in London/Hybrid. You will work as part of an Agile team to migrate a legacy application to a new event-based architecture, handling server-side deployment effectively. The ideal candidate has strong core Java expertis ...

    VP, Low Latency Java Trading Systems Engineer

    Morgan McKinley is looking for a VP, Java Electronic Trading Engineer to join their team in London. This pivotal role involves building low-latency systems for institutional trading, focusing on market connectivity and pricing platforms. The candidate will work independently on critical trading applica ...

    Senior Java Engineer – Spring Boot, Cloud & Leadership

    Universal Music Group in Kings Cross, London, is seeking a Senior Java Developer to lead the end-to-end delivery of major features. The ideal candidate will possess strong skills in Java and Spring Boot, and have experience in relational databases and API development. You will play a vital role in a gr ...

    Senior Java Engineer Trading Platform & Low Latency

    Bullish, Inc. is seeking a Java developer to design and deliver low-latency systems that power their Exchange. The ideal candidate has strong Java skills and a track record in performance tuning and building high-throughput systems. Join a global team committed to technical excellence, and collaborate ...

    Senior Java Backend Engineer – Spring Boot & Microservices

    Computer Futures is seeking a Senior Java Engineer to develop scalable back end solutions that make a significant impact. This role emphasizes problem-solving and understanding system architecture beyond code. The ideal candidate will have a strong Java + Spring Boot background and proven experience in ...

    Real Time Algorithmic Trading Engineer – Java (London)

    Berenberg is seeking an Algorithmic Trading Engineer for their Innovation & Technology department in London. In this full-time role, you will design and build Java engines for algorithmic trading while contributing to high-quality, real-time trading desktop solutions. The ideal candidate has strong Jav ...

    Backend Java Engineer — Fintech, Hybrid, Stock Options

    KASZEK is looking for a Backend Engineer to design and maintain scalable backend systems that support financial inclusion. You will work in a hybrid model, collaborating with a talented team and building systems that enhance how people manage money. The role demands experience in Java and backend devel ...

    Senior Java Engineer: Microservices, TDD, CI & Agile

    Sanderson Government & Defence is looking for a Senior Java Developer in Walbottle, United Kingdom. The role emphasizes best practices in software development, including coding standards and Agile methodologies, while supporting test automation and mentoring team members. With a strong commitment to di ...

    Java Engineer Cloud FIX APIs for Trading

    IG India is looking for a Java Engineer to develop and maintain FIX APIs, crucial for onboarding new clients in their Prime product area. The position requires approximately five years of Java development experience and a strong background in API development. Additional perks include a 12% flexible ben ...

    Senior Java Backend Engineer Low Latency Systems

    Randstad Technologies Recruitment is seeking a Senior Java Backend Engineer to enhance their electronic trading platform based in London. This pivotal role demands expertise in Java 8+, event-driven architectures, and optimization of low-latency systems. The ideal candidate will collaborate with cross-functio ...

    Java Backend Engineer | Spring Boot Microservices | Hybrid

    Amber Labs is seeking a talented Java Engineer in Manchester to support a high-profile digital programme. You will work within a multidisciplinary agile team, contributing to scalable backend services that support crucial user-facing platforms. This full-time, permanent role involves collaboration with ...

    Java Backend Engineer — Cloud, CI/CD & Modernisation

    Enso Recruitment is seeking a backend developer for a key role in Belfast, focusing on designing and maintaining critical Java backend services for enterprise platforms. This position involves collaboration with engineering teams, participating in initiatives for backend modernization, cloud technologi ...

    Senior Java Engineer — Lead Microservices & Cloud Delivery

    Salt is seeking a Senior Java Engineer in Greater London for a contract role lasting 12 months. The successful candidate will leverage strong core Java expertise while working in an Agile team to migrate a legacy application to a new event-based architecture. This role demands hands-on development, men ...

    Lead Site Reliability Engineer SRE Java FinTech

    Lead Site Reliability Engineer SRE Java - FinTech Lead Site Reliability Engineer SRE Java - FinTech Get AI-powered advice on this job and more exclusive features. This range is provided by Client Server. Your actual pay will be based on your skills and experience — talk with your recr ...

    Senior Java Engineer – Lead Loyalty Platform Features

    A leading technology firm is seeking a Senior Java Engineer in London to lead the development of core product features for a travel app. Candidates should have over 5 years of experience and strong programming and API design skills. The role requires a proactive approach to problem-solving and excellent communic ...

    Remote First Senior Backend Engineer — Java & Serverless

    An educational technology company is seeking a Senior Backend Engineer in Leeds to design and implement scalable backend services primarily using Java and serverless architectures. The ideal candidate will have over 8 years of experience in backend development and a solid knowledge of frontend technologies. This ...

    Senior Java Engineer Remote, Flexible Hours, Growth

    Xantura Limited is seeking an experienced Senior Java Developer to join their engineering team in London. You will design, build, and evolve their cloud-based data and analytics platform, which is utilized by public sector organizations across the UK. The role demands strong Java development skills and ...

    Senior Backend Engineer—Java + Serverless, Scalable Systems

    Turnitin is looking for a Senior Backend Engineer in Manchester focused on backend development using Java and serverless architectures. The successful candidate will design and optimize scalable shared backend services and contribute to frontend components. Essential qualifications include over 8 years of backen ...

    Lead Java Engineer Distributed Risk Calc Engine

    Citibank (Switzerland) AG is seeking a Senior Engineer to take on the role of Applications Development Technology Lead Analyst on the XiNG platform. You will design and maintain the core calculation engine responsible for daily risk calculations at Citi. The ideal candidate will have multiple years of ...

    Senior Java Engineer Distributed Systems, Hybrid London

    A leading enterprise SaaS provider in London is seeking a Senior Java Engineer to enhance their core platform team. This permanent, full-time role offers a hybrid work schedule and responsibilities include participating in all product lifecycle phases and mentoring team members. The ideal candidate has 7+ years ...

    Senior Java Engineer Real Time Payments & Reactive

    Icon Solutions, located in Greater London, is looking for an experienced Software Engineer with a solid product engineering background. You will be pivotal in delivering a cutting-edge solution for real-time payment processing, working hands-on to solve complex challenges. The ideal candidate should ha ...

    Senior Java Engineer — Cloud & Real Time Platforms

    Ocho People is partnering with a global technology organisation to hire a Contract Senior Java Engineer in Belfast. This role involves designing and maintaining scalable Java applications while working in a hybrid model with flexibility. The ideal candidate will have strong experience in Java developme ...

    Senior Java/Kotlin Engineer — TDD & Pair Programming

    A tech company is recruiting a Senior Java / Kotlin Engineer to work on-site in Leeds or London. The role involves collaborating in a cross-functional team to develop JVM applications using Test Driven Development and Pair Programming. Candidates should have over 5 years of experience with Java or Kotlin, along ...

    Senior Java Engineer Front Office Trading Systems

    Stanford Black Limited seeks experienced engineers to develop sophisticated systematic trading systems at their London office. You will own the end-to-end lifecycle of execution workflows, build high-performance systems, and collaborate with researchers to enhance trading algorithms. The ideal candidat ...

    Senior Java Backend Engineer – Payments at Scale

    慨正橡扯 is looking for a Senior Software Engineer to join their payment services team. This role involves translating requirements into tasks, producing test-driven features, and mentoring others while working with various payment methods securely. With a focus on innovation, candidates should have over 5 ...

    Staff Backend Engineer – Java, Cloud & Tech Strategy

    Capital One (Europe) plc is seeking a Staff Software Engineer - Back End in London. In this role, you'll influence the technical direction, lead multiple teams, and mentor engineers. You will work in a hybrid model, collaborating in the office three days a week. Ideal candidates have deep expertise in Java and s ...

    Senior Java Automation Engineer – FX eTrading Backend

    Citigroup Inc. in Greater London is seeking a Senior Automation Engineer to oversee backend automation capabilities within the FX eTrading technology stack. This role requires significant experience in test automation and a strong Java coding background. The successful candidate will drive automation strategy ...

    Platform Backend Java Engineer (Hybrid, Fixed Term)

    A tech consulting firm seeks a Backend Java Developer in Birmingham to build core backend services for a Data Fabric platform. Candidates should have strong experience with Java, Spring, and SQL transformations. This role involves working on data governance and performance-oriented backend solutions, ideally in ...

    Lead Java Engineer – Real Time Trading Platform

    A leading FinTech innovator in London is looking for a Java Developer to build their next-generation, low-latency trading platform. This role involves developing high-performance systems in Java, optimizing multithreading, and collaborating with a team of experts. The ideal candidate has a degree in Computer Sci ...

    Senior Lead Backend Engineer — Java & Kotlin (Fintech)

    A leading financial services firm is seeking a Senior Lead Software Engineer to join its new team focused on innovative fintech solutions. This role involves problem-solving, developing secure code, and working collaboratively in an agile environment. Ideal candidates have experience in Java and Kotlin, with a p ...

    Senior Java Engineer (Kubernetes, Kafka, Docker) – Hybrid

    Senior Java Engineer (Kubernetes, Kafka, SpringBoot) - Finance - London Daily rate: £550 - £750 (inside IR35) – Duration: 12 months – Hybrid: 8 days per month – Start: ASAP A banking client is looking for a Senior Java Engineer with Kafka and Docker skills to join the team on a freela ...

    Hybrid Full Stack Engineer (Kotlin/Java, TypeScript)

    A prominent financial services firm in London is seeking a full stack developer skilled in Kotlin or Java, along with TypeScript. This role requires strong computer science fundamentals and excellent communication skills. Candidates should have 3-9 years of experience and will need to pass an online test before ...

    Java FinTech Microservices Engineer — Global Relocation Included

    A global e-commerce company is seeking a Software Developer to contribute to high-scale products and see the real-world impact of their work. The role involves creating scalable systems, advocating best practices, and working within a performance-driven culture. Ideal candidates should have solid software develo ...

    Senior Java Engineer — BSS/OSS & Microservices Mentor

    A leading software company in Greater London is looking for a Senior Developer to join its Software Engineering team. The role involves technical design, development of BSS/OSS products, and mentoring junior developers. The ideal candidate will have extensive experience in Java technologies and a strong grasp of ...

    Senior Backend Java Engineer Sports Data Pipelines

    A leading sports media network in Greater London is seeking a Senior Backend Java Engineer to develop and maintain backend services crucial for processing sports data feeds. In this role, you will work closely with the Tech Lead and collaborate with frontend teams to ensure the reliability and scalability of our ...

    Senior Java Trading Systems Engineer Low Latency

    A leading financial services provider is seeking a Senior Java Developer to design and implement low-latency trading system components. This role requires deep expertise in Java, real-time systems, and distributed messaging technologies. The ideal candidate will be responsible for optimizing mission-critical tra ...

    Senior Java Backend Engineer Build Scalable Microservices

    Alumni Ventures is looking for a Senior Java Engineer to join their team in Greater London. In this role, you will design and develop backend services using Java and Spring Boot, ensuring the reliability and scalability of their systems. The ideal candidate has a strong understanding of microservices a ...

    Senior Java Microservices Engineer Cloud Native APIs

    HCLTech is seeking a Senior Engineer to take end-to-end ownership of complex distributed systems. You will design, build, and operate cloud-native microservices in Java 17/21 with Spring Boot, ensuring responsiveness through modern front-ends in Typescript. This hands-on role involves daily production ...

    Latency Driven Backend Engineer (Java, Microservices, FIX)

    Net2Source (N2S) is seeking a skilled candidate to join their team in Belfast. The role focuses on technical requirements primarily in the financial services domain, requiring strong expertise in Java and Spring Boot. The ideal candidate will excel in analytical and communication skills, with proven experienc ...

    Senior Java Engineer – Azure – Finance Domain – London

    Senior Java Engineer (Azure) - Finance - London Daily rate: €500 - €700 (inside IR35) Duration: 12 months Hybrid: 8 days per month Start: ASAP A banking client of mine is looking for a Senior Java Engineer with Azure and Kafka experience to join the team on a freelance basis. We are specifically loo ...

    VP Java Engineer — FX Markets Tech Leader

    Citi is seeking an Applications Development Lead in Greater London to manage development teams focused on innovative projects in the FX Technology group. This role involves overseeing team performance and stakeholder coordination while utilizing your extensive Java development experience to solve complex busi ...

    Senior Backend Java Engineer Financial Services (London)

    LinuxRecruit is looking for a Senior Backend Developer specializing in Java to join their team in London, United Kingdom. The ideal candidate should have a strong background in backend development and a passion for writing impactful code. The position offers a competitive salary between £75k and £85k per year ba ...

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      Fullstack Software Engineer Java React Aws Jobs in United Kingdom Job Search Guide, Trends and Insights