85,552+ Junior Java Fullstack Developer Spring Boot React Jobs in UK — Top Companies Hiring July 2026

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Remote Java Microservices Engineer (6 Month Contract)

Rsgroup is seeking a Software Engineer to develop AWS-based APIs for B2B EDI solutions. This remote role requires a minimum of 5 years of technical experience in cloud computing and Java-based services. You'll embrace agile development, own the software life cycle from design to operation, and bring a ...

Java Backend Engineer — Fintech APIs & Microservices Hybrid

DolarApp is searching for a Backend Engineer to contribute to scalable backend systems that drive its innovative fintech products. The role emphasizes building REST APIs and microservices within a fast-paced environment. Ideal candidates will have strong Java expertise, a relevant Bachelor's Degree, an ...

Senior Software Engineer with Python and Java

Senior Software Engineer with Python and Java Our Client is looking to recruit brilliant Software Engineer with upwards of 5 to 10 years solid proven track record of developing complex applications with Python coupled with Machine Learning and ideally Go. We’re looking to recruit initially ...

Java Microservices Engineer 12 Month Contract (London)

TechNET IT Recruitment Ltd is currently supporting a major global financial services organization looking to hire multiple Mid-Level Java Developers for long-term contract assignments in London. The successful candidates will work in a modern software engineering environment, contributing to enterprise-scale ...

Staff Engineer: Cloud Native Java & DevOps Leader

Tata Consultancy Services is looking for a Staff Engineer in London, UK. The role involves building reliable software as part of a multi-disciplinary team. Candidates should possess strong backend development skills in Java 17+, coupled with a solid background in DevOps practices. In addition to techni ...

Senior Kotlin/Java Backend Engineer — FinTech Microservices

Hydrogen UK Ltd is seeking a Senior Software Engineer with strong skills in Kotlin and Java to support a major financial services programme. The ideal candidate will have proven experience in building scalable backend systems and microservices within regulated environments. This role offers hybrid work ...

DevOps Engineer — AWS, Bash & Java | Agile Ops

Richard Wheeler Associates seeks a dedicated DevOps Engineer to join their team in Newbury, United Kingdom. The role demands a comprehensive understanding of DevOps principles and expertise in various tools including AWS and Bash scripting. Ideal candidates will have experience in agile methodologies a ...

Senior Java Engineer – AI Driven Distributed Platform

Synechron is seeking a Senior Java Engineer in Greater London to design, build, and maintain complex Java and Python applications. This role involves developing AI-powered features and architecting scalable systems for critical index computation. We are looking for candidates with over 10 years of expe ...

Senior Software Engineer (Python/Java) – Life Sciences

A leading consulting firm in the United Kingdom is seeking a Senior Software Engineer with expertise in Python and Java. The ideal candidate will have 5 to 10 years of experience in developing complex applications, particularly within the Life Sciences domain. This role offers flexible remote working and a compe ...

DV Java Engineer: Cloud, AI & Big Data

Sanderson Government & Defence is seeking a candidate to engage in groundbreaking software development projects focusing on national security. You will design and develop high-quality software applications using modern technologies. The ideal candidate has a degree in a relevant field and experience in ...

Java Engineer – Camunda, Microservices & Cloud (Hybrid UK)

Sivara GmbH, located in Greater London, is seeking a skilled Java software engineer to design, develop, and deploy process automation solutions using Camunda. Applicants should possess a strong background in microservices, REST APIs, and containerization technologies like Docker and Kubernetes. This is ...

Hybrid Java Software Engineer — 4 Day Week

Sivara GmbH, based in Bradley Stoke, England, is seeking a skilled software engineer with experience in Java and a strong background in software development. The role involves designing software tools and collaborating with team members while adhering to industry standards. Offering a hybrid work model ...

Java Distributed Systems Engineer Global Scale Services

Omaze is seeking engineers for the Apple Services Engineering team in London. This role focuses on building and improving features for Apple services such as Podcasts and Apple Music. Successful candidates will work on data systems that serve millions of users globally. Candidates should have strong ex ...

Solutions Architect: Java/Node.js, Microservices & API Expert

Sivara GmbH, located in Wembley, is seeking a Solutions Architect to join their team. The successful candidate will work on-site five days a week and will be responsible for developing innovative technology solutions. A competitive salary package of up to £85,000 per annum is offered. Ideal candidates ...

CICS Liberty Middleware Engineer (Java/JVM) Hybrid

Sivara GmbH is looking for a Middleware Infrastructure Engineer specializing in CICS Liberty for a 6-12 month contract. This role involves supporting the engineering and optimisation of Java workloads running in CICS environments, primarily based in London or Edinburgh, with a hybrid work model. The id ...

Software Consultant (Java/Scala) – Hybrid UK Travel

True North Group is looking for skilled developers to deliver in complex client environments across the UK. You'll work with Java or Scala, employing strong testing practices and OO design to ensure maintainability and quality. The role supports hybrid work for locations in Newcastle, Manchester, Birmi ...

Principal Java Engineer Low Latency Payments Platform

RE Partners is seeking an experienced Principal Java Engineer to join our engineering team in the UK. This role involves designing and optimizing low-latency systems for payment processing, utilizing modern technologies. With over 10 years of experience required, candidates must have expertise in Core ...

Senior Java Payments Engineer Hybrid, Scale & Reliability

Starling is looking for highly motivated engineers to join their Payment Schemes team. With a primary focus on Java, you will play a key role in building and maintaining systems for payment integrations to ensure stability and accuracy. Your work will help in delivering mission-critical services, worki ...

Senior Java Team Lead: Scale, Mentor & Deliver

TXP is expanding its Java capability and seeks an experienced Java Team Lead to manage Java teams across the UK and oversee offshore delivery centers. This senior role emphasizes high-quality outcomes, technical leadership, and fostering a supportive culture. The ideal candidate should possess a strong ...

Lead Public Cloud Platform Engineer Java/Python

United States Digital Space LLC is looking for a Lead Software Engineer to join the Cloud Engineering Acceleration team. You'll contribute to strategic public cloud solutions, guiding architecture direction and ensuring engineering excellence. Your role involves collaborating with teams, optimizing ser ...

Senior Java Backend Engineer IAM & Security (Hybrid)

PeopleWorks is seeking an experienced backend engineer in Basildon to design and build high-scale backend services. The role entails serving as a technical lead while ensuring secure and resilient platform standards. Ideal applicants will have over 8 years of experience with Java, web development, and ...

Senior Backend Engineer (Java) — Hybrid Platform Lead

Starling Bank is looking for Backend Software Engineers to enhance the Engine Platform, which powers innovative banking solutions globally. The role entails contributing to product development, leading projects, and fostering a culture of collaboration and learning. Ideal candidates will be engaged and ...

Software Engineer – Java, Python, Cloud, FinTech Focus

Aspect Capital, based in London, is seeking an experienced Software Engineer to enhance their Software Development team. The role focuses on utilizing technology to address business challenges in a fast-paced environment. The ideal candidate will have 4-6 years of software engineering experience, with ...

Senior Backend Java IAM Engineer – Identity Platform

Peopleworks is looking for a Software Engineer to join their Identity Management Services team in Essex. This role involves working on the core platform that powers identity infrastructure for a major banking and finance branch of a global manufacturing leader. The successful candidate will ensure the ...

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 ...

Lead Cloud AI/ML Engineer (Java & Python)

JPMorgan Chase & Co. is seeking a skilled professional to design and implement cloud-based applications. Responsibilities include collaborating with engineering teams and optimizing applications for performance and security. The ideal candidate possesses strong skills in cloud development, particularly AWS, a ...

Senior Java Full Stack Engineer & Transformation Consultant

United States Digital Space LLC is looking for a Java Full Stack Engineer to drive digital transformation initiatives. The role involves collaborating with clients to create innovative digital solutions with a clear focus on business value. Applicants should hold active SC Clearance and possess over 5 years o ...

Core Trading Java Engineer Low Latency Systems

IG KnowHow is seeking a Software Engineer for their Core Trading team to build low-latency, high-throughput trading systems. The ideal candidate will possess strong Java skills and contribute to the performance of financial products. This role emphasizes collaboration within a dynamic team and follows ...

Senior Java Lead for Equities Algo Trading

JPMorgan Chase is seeking a Lead Software Engineer to join their Equities Trading Technology Organization in London. The role involves designing and developing algorithmic trading strategies and a state-of-the-art execution platform. Candidates should have strong Java expertise, experience with low latency sy ...

Java Software Engineer (Hybrid) Build Scalable Solutions

Causeway Technologies in Tees Valley is looking for a Software Engineer to enhance software quality through automated and manual tests. You will work in a hybrid environment contributing to software that impacts thousands of lives. The ideal candidate will have experience in Java, MySQL, and Agile meth ...

Java SDE II Cloud, CI/CD + Leadership

Tesco UK is hiring an SDE2 to join their team in Welwyn Garden City. In this role, you will develop high-quality software solutions using Java, advocate CI/CD best practices, and mentor fellow engineers. This position is designed for career and technical growth, preparing you for advancement to SDE3. T ...

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 Cloud Software Engineer – Agile, DevSecOps Focus

Advanced Resource Managers Ltd is seeking a Software Engineer for a 12-month contract based in either Newcastle or Guildford. The role involves developing high-quality, scalable Java code and contributing to Agile ceremonies. Candidates should have experience in cloud services, unit testing, and DevSecOps pra ...

Senior Backend Architect Cloud Native SaaS (Java)

LinuxRecruit is looking for an engineer to redefine the market by crafting features in a cloud-native environment. You will design and build distributed services and APIs while tackling complex engineering challenges and working with large datasets. The role requires strong proficiency in the Java ecos ...

Senior Lead Software Engineer Python & Java (Markets)

JPMorganChase is seeking a Lead Software Engineer to enhance their Markets Technology team. In this role, you will design and implement secure technology solutions, ensuring the highest standards of quality. You'll collaborate with various functions to deliver trusted products and enhance application performa ...

Lead Java Engineer — Ultra Low Latency Systems

Orbis Group is seeking a Technical Lead - Low Latency Java Engineer based in London. You will join a specialized engineering team responsible for constructing high-performance exchange systems from scratch. This is a unique opportunity to design and optimize systems with performance levels measured in ...

Technical Lead Low Latency Java Engineer Greenfield

Technical Lead - Low Latency Java Engineer - Greenfield London | 4 Days Onsite We're partnered with a technology-driven trading and market infrastructure business building the next generation of high-performance exchange systems. This is an opportunity to join a small, highly spec ...

Strategic Enterprise Architect: Java J2EE & Cloud (BFSI)

A leading technology firm in Greater London is seeking an experienced Enterprise Architect (Java J2EE) for a contract role in the BFSI domain. Responsibilities include driving architectural discussions, leading application modernization, and designing cloud solutions on Microsoft Azure. Ideal candidates will hav ...

Lead Java Engineer: Low Latency Trading Systems

Grid Dynamics is seeking Senior and Principal Java Developers to work on a high-performance trading project for a major financial institution. Candidates should have deep knowledge of Java and the JVM, strong experience with low-latency systems, and familiarity with microservice architectures. You’ll be part of ...

Java & Clojure Engineer for Fintech Data Platform

S&P Global is looking for a Java/Clojure Engineer to join their OTC Derivatives Data team in Greater London. You will develop new software and enhance existing applications, collaborating closely with product specialists. The role requires a depth of knowledge in Java and a willingness to learn Clojure. < ...

Java Engineer AI Driven Supply Chain & Systems

Urbanic, located in Greater London, is seeking a passionate Java Engineer to design and develop next-generation Supply Chain Management systems. In this role, you will troubleshoot production issues and collaborate closely with the Product, Operations, and Business teams. The ideal candidate has over 3 ...

Lead Technical Architect Java AWS Agentic AI

Lead Technical Architect Java AWS Agentic AI London, Greater London | £100k - £130k per year Lead Technical Architect (Java AWS Agentic AI) London / WFH to £130k Do you have experience of architecting and leading the modernisation of Payments, FX or Core Banking platforms? ...

Senior Java Backend Engineer: Fintech Microservices Impact

Castleisland is looking for a Backend Engineer to join our innovative fintech team in Greater London. This role involves designing and maintaining scalable backend systems that power our financial products. You'll collaborate in creating high-quality solutions focused on financial inclusion. The ideal ...

Staff Java Backend Engineer APIs & Banking Tech

Java Script Works is seeking a Staff Software Engineer specializing in Java backend development, based in Belfast, United Kingdom. The ideal candidate must have expertise in Core Java, JEE technologies, and API Development, with knowledge in Banking or similar sectors. This full-time role offers a comp ...

Software Engineer Java/Python for Trading Tech

Aspect Capital, located in London, is seeking a Software Engineer to join their Software Development team. The role involves developing features on various systems using Java, Python, and MATLAB within a collaborative culture aimed at solving business problems. Applicants should have 3-5 years of exper ...

Senior Java Automation Engineer — FX eTrading Backend

Citi is looking for a Senior Automation Engineer to join their Tech team in Greater London. This role involves owning the backend automation capability within the FX eTrading technology stack, ensuring quality delivery for critical applications. Candidates will need significant experience in backend test auto ...

Java SDE II: Design, Deliver & Elevate Systems

Limelight Health is seeking a Software Development Engineer II - Java based in Greater London. This mid-level role focuses on implementing and delivering software solutions using Java and cloud technologies. The ideal candidate will mentor other engineers and ensure high-quality standards in development. ...

Senior Architect Java & AWS, Agentic AI Modernisation

Client Server is seeking a Lead Technical Architect (Java AWS Agentic AI) in London. In this hybrid role, you'll work three days in the office and have flexibility to work from home. You'll architect and lead the modernization of Core Banking platforms, collaborating with Teams across the business. The ...

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 Data Platform Engineer – Java/Micronaut (Hybrid)

Marks & Spencer Plc is seeking a Senior Software Engineer to enhance their M&S Foods Product team. This role involves building and evolving reliable data services, shaping the technical direction of food data platforms, and ensuring technical excellence within an inclusive culture. Ideal candidates hav ...

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    Junior Java Fullstack Developer Spring Boot React Jobs in United Kingdom Job Search Guide, Trends and Insights