340,979+ Java Software Engineer Cloudnative Api Security Jobs in UK — Top Companies Hiring June 2026

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Java Backend Engineer Spring & Kafka, Game Tools

Rockstar Games in Dundee is looking for a Java Backend Developer with over 3 years of experience. In this role, you will design and implement solutions to meet fast-paced game development challenges, collaborate with various technology teams, and develop a strong understanding of the systems used across Rockstar ...

Platform Backend Java Engineer (Hybrid, Fixed Term)

A technology consulting company is seeking a Backend Java Developer to build core backend services in a hybrid role based in Birmingham. You will implement policy engines for data governance and work with distributed data platforms. The ideal candidate has strong Java and Spring experience, expertise in SQL pars ...

Full Stack Java/React Engineer — Remote & Flexible

Job Description Job DescriptionCan you think strategically and connect the dots across projects to shape the bigger picture? Do you thrive in fast-paced, agile environments, enjoy exploring smarter ways of working, and love to collaborate acros ...

Senior Java Backend Engineer | Enterprise Platform Leader

A global financial services organisation is seeking a Senior Java Engineer to contribute to a vital enterprise platform. This hands-on role involves not only development but also shaping technical standards and collaborating with senior engineers to enhance platform quality. Ideal candidates should have strong e ...

Java Backend Engineer — Scalable Cloud APIs (Hybrid)

Jacobs is seeking a Java Developer in Glasgow to design and deliver scalable back-end services and APIs using modern Java practices. This full-time, permanent position offers a hybrid working model, emphasizing work-life balance and flexibility. The ideal candidate will have strong Java development exp ...

Java Full Stack Engineer: Cloud Native & Kubernetes

A technology consulting firm in Glasgow is seeking a passionate Full Stack Java Developer. In this role, you will design and maintain enterprise-grade applications. You will work extensively with Java, Spring Boot, and cloud technologies, helping to deliver scalable solutions. This position requires strong skill ...

Senior Java Engineer — Cloud Microservices & Spring Expert

Experian in Nottingham is seeking a skilled Java developer to join their team. The role involves delivering high-quality software solutions, building REST APIs, and conducting code reviews, all while adhering to agile principles. Ideal candidates have significant experience in Java development, familia ...

Java Engineer – Flexible Work & Growth in Belfast

慨正橡扯 is seeking a Junior Java Engineer in Belfast. This role offers the chance to join a leading firm in Digital Engineering, contributing to innovative solutions in technology consulting. You'll work in a diverse team, coding backend developments and ensuring code quality. A Bachelor's degree in a rel ...

SC Cleared Senior Java Backend Engineer (Hybrid)

Peregrine is seeking an experienced SC Cleared Senior Java Developer to contribute to the design, development, and enhancement of enterprise-scale applications. You will work within an Agile engineering team, delivering high-quality solutions throughout the software development lifecycle. The ideal can ...

Senior Java Engineer Low Latency FX Trading

A technology consulting firm in the City of London is seeking a Senior/Principal Java Developer specialized in low-latency systems for the financial services sector. The role involves developing high-performance Java applications, eliminating performance bottlenecks, and maintaining a flexible work schedule. Can ...

Java Backend Engineer Cloud Native & Scalable Systems

A technology company in Northern Ireland is seeking a passionate Backend Engineer to join their engineering group. The ideal candidate will have at least 3 years of experience in Java development and be capable of delivering robust backend solutions. Responsibilities include architecting backend services and sup ...

Java Cloud Engineer AWS, DevOps & CI/CD

A leading technology solutions provider in the UK is looking for a competent Java Developer to enhance and maintain software systems that meet user needs. This full-time role requires significant experience in AWS cloud services and various development tools including AngularJS and Jenkins. Candidates should pos ...

Staff Engineer: Lead Architect & Mentor (Java/Kafka)

We’d all like amazing work to do, and real work-life balance. That’s waiting for you at Sainsbury’s. Think about the scale it takes for us to feed the nation. The level of data, transactions and variety it involves. Then you’ll realise that ours is a modern software engineering environment because it has t ...

Senior Java Engineer (Azure) Finance Hybrid (London)

Salt Digital Recruitment is seeking a Senior Java Engineer with strong Core Java and Azure experience to join a banking client's team in London. The role involves freelance work with a daily rate of €500 - €700, primarily focused on server-side development within an Agile team. Key responsibilities inc ...

Equities Front Office Tech Engineer Java & FIX

A leading financial services firm is seeking a developer to work on key projects for their Equities business in London. This role involves supporting front-office trading teams and local middle office functions, along with developing applications critical to client reporting and trading operations. The ideal can ...

Lead Backend Engineer (Hybrid) — Java & Spring Microservices

Scrumconnect Consulting, a leading digital consultancy in Swansea, is looking for a skilled Lead Backend Developer to oversee the design and delivery of scalable backend systems using Java and Spring Boot. The role offers a flexible hybrid working environment and the opportunity to work in a collaborative agi ...

QA Automation Engineer – Java, JEST, AWS Serverless

N Consulting Limited is seeking a passionate QA Automation Engineer to enhance quality across cloud-native applications. The ideal candidate will have a strong background in building robust automation frameworks using Java and JEST, apply TDD and BDD practices, and validate AWS backend services. The ro ...

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 ...

Real time Java Trade Processing & Reconciliation Engineer

Brevan Howard is seeking a skilled engineer for their systematic trading team to design and implement trade capture and middle office systems. The role involves building scalable trade booking and reconciliation platforms while collaborating with trading technology and finance teams. The ideal candidat ...

Java Engineer — High Performance FinTech Platform (London)

Hunter Bond is seeking a Java Software Engineer to join their innovative fintech company in London. The role involves hands-on development of a cutting-edge distributed trading platform with a focus on high-quality code and agile practices. With a strong engineering culture and commitment to modern tec ...

Senior Java Engineer Lead Microservices & Cloud Migration

Halian | Managed Services, Recruitment Agency & Contract Staffing is seeking a candidate with strong systems development and solutions design skills for a role focused on migrating legacy applications to a new event-based architecture. The successful candidate will work within an Agile team, ensuring complian ...

Full Stack AI Engineer (Java/Python/React)

Fairygodboss is seeking a Full Stack Engineer to design, build, and support scalable web applications and integrations. You will leverage technologies like Java, Python, and React to deliver impactful features. This role requires collaboration across teams, contributing to AI initiatives, and ensuring ...

Platform Engineer: Backend Java for Data Fabric

A leading consultancy firm is looking for a Backend Java Developer for a hybrid role in London. You will build core backend services for a Data Fabric platform, implementing rule engines and working with SQL parsing and distributed data systems. Ideal candidates should have strong experience in Java (17/21), Spr ...

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 ...

Java Microservices Engineer Spring, AWS & AI Tools

Ascendion is seeking a skilled full stack engineer based in Bournemouth to join our team. You will be responsible for designing, developing, and troubleshooting software solutions for complex business challenges. The ideal candidate will have expertise in Java, Spring/Spring Boot, and experience with A ...

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 ...

Java Engineer Up to £200,000 + Bonus London

Salary: Up to £200,000 + Bonus + Benefits Location: London About the Company Our client is an innovative and award-winning fintech company based in London, operating at the forefront of the electronic trading (eTrading) space . They are building adva ...

Cybersecurity Backend Engineer (Java/JS/Python) Cloud

MCS Group is seeking multiple Software Engineers to support a global technology organization's Cyber Security Engineering teams in Belfast. This opportunity involves designing and developing scalable backend services, APIs, and cloud-native applications in a collaborative environment. Candidates should have 3+ y ...

Senior Java Full Stack Engineer – Microservices & Cloud

Stealth iT Consulting is seeking Java Full Stack Engineers (Consultant / Senior Consultant) for permanent positions across London, Manchester, and Glasgow with flexible working options. Ideal candidates must be eligible for SC Clearance and possess 5 years of UK residency. The role involves building in ...

Senior Backend Engineer Java/Spring, SC Clearance

Coltech is seeking an experienced Software Developer / Engineer to join a secure, large-scale financial services programme in Greater London. This role involves hands-on engineering within a collaborative team, enhancing critical backend services in a distributed architecture. The ideal candidate will ...

Senior Java Engineer: Spring Boot, AWS & Leadership

Universal Music Group is seeking a Senior Java Developer to lead a greenfield project that will be utilized globally by UMG staff. The ideal candidate will have strong proficiency in Java and Spring Boot, experience with relational databases, and a solid background in service-oriented architectures. This role ...

Lead AI Trading Tech Engineer (Python/Java)

JPMorganChase is searching for a Lead Software Engineer within Credit Technology to drive the development of market-leading technology products. The role involves architecting new systems leveraging AI-assisted coding while enhancing existing platforms. Candidates should have 5+ years of experience in Python, ...

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 ...

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 ...

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 ...

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 Lead Java Engineer Equities Algo Trading

JPMorgan Chase & Co. is seeking a Lead Software Engineer for their Equities Algo Trading team in London. The role involves designing and developing algo trading strategies, enhancing real-time processing solutions, and working closely with quant teams and traders. The successful candidate will have adv ...

Senior Java Backend Engineer – Live Casino Platform

Team Creation is seeking a Senior Java Developer to join our Core Platform Team in Greater London. This role is essential for developing the scalable backend infrastructure supporting our Live Casino platform, ensuring smooth gameplay and real-time interactions. The ideal candidate will have over 5 yea ...

Principal Java & AWS Engineer for Cloud Performance

LSEG is seeking a Principal Engineer to be the senior technical expert in our Risk Screening platform based in Greater London. You will lead implementations and ensure that designs meet high standards for performance and scalability. The ideal candidate will bring extensive experience with Java, AWS, a ...

Java Backend Engineer — Cloud Native & Distributed Systems

VanRath in Dundonald is seeking a Backend Software Engineer to join their established engineering team. You will be involved in developing backend systems and contributing to platform re-engineering initiatives. The ideal candidate will have a Bachelor's degree, 3+ years of Java experience, and strong ...

Java Desktop Engineer – Audio/DSP, Hybrid UK

Redline Group is working with a small engineering business in Kidderminster, Worcestershire, seeking a Java Developer for their R&D team. This role involves developing features for a complex desktop application used in audio control, requiring travel to their HQ. The ideal candidate has experience with ...

Junior Java Engineer — Hybrid London, Rail Tech

Manchester Digital is seeking a Junior Java Developer for a hybrid role based in London. You will work on prestigious projects in the rail industry, impacting around 2.7 million people daily. This position offers a collaborative environment where you can grow your skills and shape the role to suit your talent ...

Senior Java Engineer — Spring Boot, Azure, Hybrid

Searchability® is seeking a Senior Java Engineer in Welwyn Garden City to design and maintain backend services for high-traffic systems. The role offers full ownership of services, utilizing Java, Spring Boot, and Azure, with a hybrid working model of 2 to 3 days a week at the office. With a focus on s ...

Senior Full Stack Engineer: Lead, React/Java

CreateFuture in Edinburgh is looking for a Senior Software Engineer (Full Stack) with expertise in React and Node.js. You will collaborate within a cross-functional agile team, mentoring junior engineers and driving technical improvements to ensure successful project outcomes. This hybrid role requires ...

Senior Java Engineer FinTech Cloud Apps (Hybrid)

United States Digital Space LLC is looking for a Senior Java Developer to join their Financial Services Business Unit in Greater London. In this role, you will architect high-quality applications that drive meaningful business outcomes, working within a collaborative engineering community. This opportu ...

Lead Java Engineer: FX Payments & Global Transactions

United States Digital Space LLC is seeking a Lead Software Engineer to shape the future of payments technology. In this pivotal role, you will lead technical initiatives, foster innovation, and drive solutions that meet business objectives. You will work closely with cross-functional teams to develop s ...

Senior Java Backend Engineer — Hybrid & Growth Path

Recommended Recruitment LTD is seeking a Senior Java Backend Engineer in Greater London. In this role, you will design and develop modern Java services using Spring Boot and play a significant part in shaping the next generation of backend services in a hybrid working environment. The position offers a ...

Lead Java Backend Engineer — Workflow Orchestration & Microservices

DCV Technologies is seeking Java Developers at Mid to Lead level for a contract role in Burgess Hill, UK. This position offers a hybrid working arrangement with 2 days on-site. The ideal candidates will have strong Java backend expertise, focusing on enterprise-scale workflow automation and digital transforma ...

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    Java Software Engineer Cloudnative Api Security Jobs in United Kingdom Job Search Guide, Trends and Insights