129,081+ Core Java Developer Jobs in UK — Top Companies Hiring June 2026

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Fullstack Java Developer

Job Description Anticipated Contract End Date/Length: December 31, 2026Work Set Up: HybridClearance required: BPSS Our client in the Information Technology and Services industry is looking for a Fullstack Java Developer to design and build dynamic, scalab ...

Java/Kafka Developer

Overview We are looking for a Java Developer to enhance and support an existing suite of enterprise Java applications. You will primarily work on: A Spring Boot–based Java application that hosts microservice web pages used to view static data and submit trade lifecycle actions. ...

Java Application Developer

Location: Bournemouth (5 days/week work from office) Required Skills/Experience: Strong full stack engineering background with deep expertise in Java and Spring/Spring Boot Hands‑on experience with cloud technologies (preferenc ...

Java Developer eDV

At IBM CIC, we deliver deep technical and industry expertise to a wide range of public and private sector clients in the UK. A career in IBM CIC means you’ll have the opportunity to work with visionaries across multiple industries to improve the hybrid cloud and AI journey for the most innovative and valua ...

Senior Java Developer

Main Purpose and Responsibilities As a Senior Java Developer at Kainos, you’ll be responsible for developing high‑quality solutions which delight our customers and impact the lives of users worldwide. It’s a fast‑paced environment so it is important for you to make sound, reasoned decisions. You’ ...

Java Backend Developer

About the Role: Job Title – Java Backend Developer Location – London, UK Mode of Work – Hybrid (3 Days Onsite Per Week) -Must Type of Hiring – Fixed Term Employment (FTE) Project Duration – 12 Months (Possible Extension) ...

Java UI Developer

Job Role: Java UI DeveloperJob Location: London, UK (4 days per week from office)Job Type : Contract (6 months ) / PermJob Description:Role Overview:Full Stack Developer with expertise in Java Spring Boot and React JS to build scalable microservices and modern front-end applications, leveraging AI-assisted tools ...

Junior Java Developer

Our talented people are creating the technology of the future From scheduling to maintenance to keeping people safe, 2.7 million people are helped by our software daily. Technology makes it possible; people make it happen and you could be part of that. The Tracsis Group has grown ra ...

Java & .NET Developer

We believe in better. And we make it happen. Better content. Better products. And better careers. Working in Tech, Product or Data at Sky is about building the next and the new. From broadband to broadcast, streaming to mobile, SkyQ to Sky Glass, we never stand still. We optimise and innovate. We a ...

Java Developer (React)

Talan is looking for a talented Java Developer with React experience to join our team delivering cutting‑edge Front Office solutions within Global Markets environments. You will play a key role in designing and enhancing regulatory, alerting, and sales enablement platforms , ...

Java Developer React

Talan is looking for a talented Java Developer with React experience to join our team delivering cutting‑edge Front Office solutions within Global Markets environments. You will play a key role in designing and enhancing regulatory, alerting, and sales enablement platforms , ...

Senior Java Developer

Salary: £? - ? per year Requirements Proficiency in Java 8 and above, with strong knowledge of the Spring Framework Experience developing web-based applications using Java technologies, frameworks, and tools Experience with ReactJS/Redux and NodeJS is preferred ...

Senior Java Developer

Salary: £40,000 - 65,000 per year Requirements Active SC Clearance is required. Minimum 5 years of proven experience in software engineering. Strong hands‑on experience with Java. Strong hands‑on experience with Spring Boot. Strong han ...

DV Java Developer

An exciting opportunity to work on unique projects using the latest technologies. Working as part of a team, you will be involved in designing & developing software applications to a high standard across a variety of projects. Working within the national security sector, you will be using the most modern a ...

Java React Developer

Seeking a Specialist with experience in Java and React to design develop and maintain scalable cloudnative applications with expertise in core Java multithreading Kafka Kubernetes AWS and investment banking domain knowledge Job Description Design and develop robust applications usin ...

Lead Java Developer

We're looking for an experienced, hands-on Java/Microservices Tech Lead to join our client's team on a contract basis in Glasgow. This is an exciting opportunity for a senior technologist who enjoys staying close to the code while providing technical leadership and direction to a development team. ...

Senior Java Developer

Senior Java Engineer Cardiff (4 days per month onsite) – £60,000 – £75,000 + Benefits – SC Clearance Eligibility Required – Face‑to‑face interviews: 6th or 7th July We're looking for experienced Senior Java Engineers to join a growing team delivering complex, enterprise-scale solu ...

Senior Java Developer

About the Job Join the company’s Financial Services (FS) Business Unit within the Cloud & Custom Applications (C&A) practice as a Senior Java Developer. In this role, you will help architect tomorrow by delivering scalable, high‑quality applications that drive meaningful business outcomes. As par ...

Jr. Java Developer

Job Title Jr Developer Job Summary This hybrid role is for a junior developer with experience in Java Springboot, Java and Core Java focusing on building secure, scalable and maintainable enterprise applications for a global organization while collaborating with cross‑functional ...

Java Developer / Lead

Salary: £40,000 - 46,000 per year Requirements Java 11/17+ Spring Boot Camunda REST APIs Microservices Architecture Workflow Design and Process Orchestration Error Handling / Exception Management Event-Bas ...

Java Developer / Lead

Salary: £40,000 - 46,000 per year Requirements Java 11/17+ Spring Boot Camunda REST APIs Microservices Architecture Workflow Design and Process Orchestration Error Handling / Exception Management Event-Bas ...

Senior Java Developer

Senior Software Engineer Vix Technology is a global leader in providing innovative solutions for public transit, believing that accessibility should be a standard. With over 35 years of experience and systems deployed in more than 200 cities worldwide, we take a modular approach to integrate vari ...

Java UI Developer

Job Role: Java UI Developer Job Location: London, UK (4 days per week from office) Job Type : Contract (6 months ) / Perm Job Description: Role Overview: Full Stac ...

Senior Java Developer

We are a leading global asset management firm with over 3,000 employees across 20 offices in 15 countries; we help millions of investors around the world pursue their financial goals.We hire critical thinkers. People who thrive in a collaborative culture like ours where we solve real problems while bui ...

Java Developer React

Job DescriptionJava Developer ReactLocation - LondonOn-Prem 3 Days per WeekTalan is looking for a talented Java Developer with React experience to join our team delivering cutting-edge Front Office solutions within Global Markets environments.You ...

Senior Java Developer

Senior Java Developer - Digital & Public Services A growing digital consultancy delivering complex, high-impact services into the public sector is looking for a Senior Java Developer to join its engineering capability. This is an opportunity to work on meaningful projects, contributing to the development of scal ...

Senior Java Developer

Senior Java Developer Location: Glasgow Work Schedule: 2 to 3 days per week onsite (Hybrid) Rate: up to £300 inside IR35 Industry: Banking & Financial Services Company Work Schedule: 2 to 3 days per week onsite (Hybrid) Contract Duration: 1st July 2026 - Dec 2026 Join a leading UK Banking and technology services ...

Sr. Java Developer

# Sr. Java DeveloperDeveloperLondonAugust 20, 202588400 - 98700 / monthFull TimeApplication ends: **May 12, 2026**Apply Now### Job DescriptionA Sr. Java Developer is responsible for designing, developing, and maintaining high-quality Java applications. They collaborate with cross-functional teams to deliver sca ...

Java Quantitative Developer

Java Quantitative DeveloperLondon – HybridJava, Low Latency, Algo Trading, Pricing, Hedging, FX/Crypto, DeFi, AWSThe companyThis is an unmissable opportunity for an experienced Java Quantitative Developer to join the crypto trading desk of one of the leadin ...

Senior Java Developer

About the Job you are considering Join Capgemini's Financial Services (FS) Business Unit within the Cloud & Custom Applications (C&CA) practice as a Senior Java Developer. In this role, you will help architect tomorrow by delivering scalable, high-quality applications that drive meaningful busine ...

Backend Java Developer

Backend Java Developer Max Supplier Charge rate: 585 Clearance required: SC (It needs to be an active SC with a government agency used within the last 6 months or a HO SC) Location: London, Croydon (Remote, with occasional, infrequent office days) Experience of Java ...

Java Developer eDV

Introduction At IBM CIC, we deliver deep technical and industry expertise to a wide range of public and private sector clients in the UK. A career in IBM CIC means you’ll have the opportunity to work with visionaries across multiple industries to improve the hybrid cloud and AI journey fo ...

Java Developer eDV

Introduction At IBM CIC, we deliver deep technical and industry expertise to a wide range of public and private sector clients in the UK. A career in IBM CIC means you’ll have the opportunity to work with visionaries across multiple industries to improve the hybrid cloud and AI journey fo ...

Senior Java Developer

Requirements If you’re someone who thrives in collaborative environments, enjoys solving meaningful problems, and wants to make a real impact - this could be the perfect next step in your career Proven hands‑on experience with Java, including designing and implementing RESTful API ...

Senior Java Developer

Software Engineer | Java | Java Developer | J2EE | C# | C++ *In Cambridge office once, every 1-2 weeks* Highly desirable Software Engineer position has become available with one of my key clients based in Central London. The client, a forward‑thinking software company in the Machine Learnin ...

DV Java Developer

Salary: £65,000 - 65,000 per year Requirements Degree or equivalent in computer science, engineering, or a scientific discipline Experience in design, development, test, and integration of quality software Experience working in a cloud environment, such a ...

Junior Java Developer

Junior Java Developer – DAX Exchange Are you an early‑career engineer who wants to build high‑performance systems that power digital advertising at scale? As a Junior Java Developer – DAX Exchange at Global, you’ll join a small, focused team building performance‑critical services ...

Lead Java Developer

HCL is a $11 billion leading global technology enterprise consisting of over 200,000 professionals operating from 52 countries. Founded in 1976, HCL is one of India's original IT garage start-ups. For more on HCL, please visit Job Role Job Title: Senior Java Backend Develop erExp ...

Java Developer (eDV)

Software Engineer | Building Intelligent Systems That Make an Impact London, Manchester or Cheltenham 4 or 5 days a week on site Existing SC or DV Clearance is required National Security Sector Tech: JAVA/C++/Python - or Devops/Data Background An exciting opp ...

Java Developer Contract

Job Description We are looking for very strong Java Developers. Do you think you have what it takes? We are looking for Java developers who have in depth knowledge of backend development with Java. You are going to work on one of Europe’s most exciting financial services products. Y ...

Java Developer (React)

Talan is looking for a talented Java Developer with React experience to join our team delivering cutting‑edge Front Office solutions within Global Markets environments. You will play a key role in designing and enhancing regulatory, alerting, and sales enablement platforms , ...

Java Software Developer

Job Description This is an exciting opportunity within technology consultancy, which offers you fast-track career development opportunities, as well as the opportunity to explore new and cutting-edge technologies. This role supports the full life cycle of software development, and includes the op ...

Backend Developer (Java)

Backend Software Engineer - Java at Capco Location: Glasgow (Hybrid) | Type: Permanent The Role Capco is growing our Engineering team and we’re looking for experienced Backend Engineers with strong Java skills and a passion for delivering innovative solutions in ...

Java Developer/ Lead

Job Description Experience in Enterprise Java/J2EE Technologies using Core Java, Spring Core, Spring JDBC template, Hibernate, Spring Batch etc. Experience with Restful Web services Good understanding and working knowledge of API Management and analytics platform i.e. AP ...

Java Software Developer

Job Description This is an exciting opportunity within technology consultancy, which offers you fast-track career development opportunities, as well as the opportunity to explore new and cutting‑edge technologies. This role supports the full life cycle of software development, and includes the op ...

Lead Java Developer

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact. <h3 ...

Java Software Developer

Job Description This is an exciting opportunity within technology consultancy, which offers you fast-track career development opportunities, as well as the opportunity to explore new and cutting-edge technologies. This role supports the full life cycle of software development, and includes the op ...

Contract Java Developer

Job Description We’re looking for a Java Developer for one of the most exciting financial service projects in Europe. We ideally need someone experienced in Java development in banking/finance. You will be a massive part of the development of a brand‑new digital bank, a great opportunity ...

Java Software Developer

Job Description This is an exciting opportunity within technology consultancy, which offers you fast-track career development opportunities, as well as the opportunity to explore new and cutting‑edge technologies. This role supports the full life cycle of software development, and includes the op ...

Java Software Developer

A superb opportunity for a dynamic Java Software Developer to become a key player in a rapidly expanding company. A genuinely friendly and enjoyable working environment, reporting into a Manager that wants to help you succeed! You will receive the best product training available and be heavily supported th ...

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    Core Java Developer Jobs in United Kingdom Job Search Guide, Trends and Insights