• United Kingdom Jobs Expertini profile avatar

    • Java Software Engineer Core Java Jobs in UK

    Professional job seekers finding United Kingdom jobs through Expertini
    750,000+ professionals on Expertini 750,000+ Candidates
    Join our global community
    Explore Leading Employers
    High-Paying Careers
    Expertini Penguin Mascot Resume Score™
    Resume Score™ Instantly
    Upload Your CV
    Quick 30-second process

    Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

    1. Expertini
    2. United Kingdom
    3. Jobs
    4. Java Software Engineer Core Java Jobs in United Kingdom

    5. Download PDF

    Reset

    Create Job Alert
      Add Alert

     
     
    Create Alert
     
    Reset

    Solutions Architect: Java, Event Driven Transformation Lead

    Bestman Solutions in Greater London is seeking a Solutions Architect to lead the transformation of legacy financial systems into a modern, scalable architecture. This role focuses on end-to-end design and hands-on Java development, requiring a proven background in solution architecture and strong object-oriented ...

    Backend Architect – Java Spring Boot & Python (Hybrid)

    Methods is seeking a skilled architect to lead the migration and rebuilding of core architecture in Java Spring Boot at their London office. This hybrid role requires three days on-site each week. Key responsibilities include optimizing technical connectors for various marketplaces and ensuring real-time synchro ...

    Back end Developer (Java &Spring Boot/Python)

    Salary: £55k to £65k London office. Hybrid role: three days a week on-site in London. Requirements Play a leading role in migrating and rebuilding core architecture in Java Spring Boot to align with a composable, cloud‑native landscape. Design and optimize technical connec ...

    Solutions Architect – Real Time Trading Platform (Java)

    Thomson Keene is seeking a Solutions Architect for their Synthetics Trading Platform in London. This hybrid role involves owning the architecture behind complex derivatives trading, defining an event-driven microservices architecture, and designing low-latency systems for real-time trading workflows. Candidates ...

    FX Risk Java Tech Lead — Hybrid/Remote

    Citi in Greater London is seeking an experienced FX Risk Java Tech Lead to drive technical excellence in developing high-performance risk calculation systems. Responsibilities include leading technical teams, guiding system architecture, and ensuring delivery of mission-critical infrastructure. The ideal candida ...

    Senior Developer Angular & Java (Active SC Clearance)

    Java Script Works is seeking a Senior Developer with strong expertise in Java v17, Angular, and Spring Boot to work in the public sector. The ideal candidate will demonstrate excellent development skills, particularly in JPA/Hibernate and REST APIs, along with experience in observability and monitoring. The role ...

    Senior Java Developer (Chinese Speaking) – Backoffice & Slot

    Eeze is seeking a Senior Java Developer (Chinese Speaking) to join the Slot Team in London. This role focuses on enhancing legacy Backoffice systems and developing a new Backoffice to support Slot game products. With a full-time contract, this position offers competitive compensation. The ideal candidate will be ...

    Java (Kotlin) Developer (Agile, Test Driven) AVP

    ## Java (Kotlin) Developer (Agile, Test-Driven) AVPApplyremote type: Hybridlocations: London United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every da ...

    Java Developer Spring Boot, Microservices & REST APIs

    Adepta Partners Limited is seeking a Java Developer based in Belfast, United Kingdom. The ideal candidate will have extensive experience in Java (version 11) and familiarity with Spring Boot, REST APIs, and microservices. This full-time role offers a competitive salary of £127,185.27 with no listed benefits. ...

    Cloud Solutions Architect AWS | Java, Python & Spark

    Barclays is looking for a Solution Architect based in Northampton, United Kingdom. The ideal candidate should have experience in solution architecture with technologies such as Java, Python, and AWS, with mandatory AWS Certified Solution Architecture Associate certification. This full-time role offers ...

    Travel Ready Customer Solutions Architect (Java/React)

    Java Script Works in Manchester is looking for a Customer Architect. This full-time role requires expertise in technologies including Java, J2EE, and React, along with experience in database systems such as Oracle and MongoDB. Candidates must be able and willing to travel. Compensation is competitive, but detail ...

    Low Latency Quant Developer (C/Java/HFT)

    Queueco is looking for a Quantitative Developer with over 3 years of experience in high-frequency trading (HFT). The ideal candidate should be skilled in writing low latency applications in Java and C++, and have a strong quantitative background. This is a full-time role based in Greater London. The successful c ...

    Engineering Manager/Technical Lead Java Capital Markets

    Engineering Manager/Technical Lead (Java) sought by leading financial services boutique based in the city of London. Extensive experience in Java development, with a strong focus on leading and mentoring teams Proven ability to manage offshore and geographically distributed teams effec ...

    London Java Engineering Manager & Tech Lead CapitalMarkets

    Gravitas Recruitment Group Ltd is seeking an Engineering Manager/Technical Lead (Java) to join a leading financial services boutique based in London. The successful candidate will oversee end-to-end software delivery, manage teams, and have extensive Java development experience. This role requires soli ...

    Hands On Tech Delivery Lead (Java/Angular)

    Java Script Works in Leeds, UK is seeking a skilled professional to oversee the technical delivery of digital products. The role involves working on the Java and Angular codebase, implementing new features in collaboration with Product Owners and Architects. The ideal candidate should have expertise in ...

    Risk Analytics Tech Consultant | SQL, Java & Crystal

    Quant Capital is looking for a Technical Consultant for Risk Analytics in London, United Kingdom. The ideal candidate will have strong skills in Microsoft SQL Server, Java, and XML, alongside experience with PL/SQL and ideally Crystal Reports. This is a full-time role focused on financial technology or front off ...

    Lead Java Developer (CIAM) | Spring, Kafka, Kubernetes

    GIOS Technology is hiring a Lead Java Developer in Northampton, UK. The candidate should have 8+ years of Java experience, with expertise in Spring, CIAM concepts, and modern Java technologies. Responsibilities include leading backend service development, ensuring security best practices, and mentoring teams. Th ...

    Hybrid AWS Cloud Architect Java Expert (Contract)

    N Consulting Ltd is seeking an AWS Cloud Architect in Portsmouth, United Kingdom. The role requires strong expertise in AWS and Java, along with experience in cloud solution design and implementation. You will work in a hybrid mode, spending three days per week in the office. This is a contract position aimed at ...

    Senior Java Developer FinTech & AI Driven Trading

    iSAM in Greater London is looking for a passionate Software Developer. In this hands-on full-stack role, you will create and enhance software solutions supporting both Asset Management and Securities. Ideal candidates will have strong Java skills, an interest in financial markets, and excellent communication abi ...

    Senior Java Developer: Spring Boot, Microservices, Cloud

    NTT DATA, Inc. is looking for a Senior Java Developer to join their team in the UK, specifically in London (Canary Wharf). The role requires strong experience in Spring Boot, Microservices architecture, and CI/CD practices. Responsibilities include developing Java applications, designing microservices, and manag ...

    Java Backend Developer AI Powered APIs (Remote)

    YO IT Consulting is seeking a Java Developer - AI Expert for a part-time remote role. You will design, implement, and improve backend APIs while collaborating with AI research teams. Responsibilities include optimizing REST and GraphQL endpoints, ensuring API security, and participating in testing of AI-powered ...

    Hybrid Automation Tester: SaaS, Java & Selenium (Newcastle)

    Limelight Health is looking for an Automation Tester in Newcastle Upon Tyne. The role involves automating functional testing of SaaS software and requires experience with various testing tools. The position offers a competitive salary and extensive benefits, including 25 days of vacation, private medical insuran ...

    Hybrid Java Developer Audio & Hardware (Desktop DSP)

    Redline Group - Specialist Recruitment for Technology & Electronics Companies is seeking a Java Developer for a hybrid role based in Kidderminster, Worcestershire. The successful candidate will work on a complex desktop application for audio control, developing new features and maintaining existing systems. You ...

    Senior Java Architect: Azure Microservices & Cloud Native

    Ampstek is seeking a talented architect to develop distributed systems in Java (17+) using Spring Boot. The candidate will deploy and manage applications in Azure, leverage Docker and Kubernetes, and implement event-driven architectures. A strong proficiency in Azure cloud services, CI/CD automation, and leaders ...

    Lead Java Developer — Hybrid & High Performance Backend

    Royal London is seeking a skilled Lead Java Developer to join their new engineering capability in Alderley Edge. The role involves leading the development of an innovative investment platform with a focus on enterprise Java solutions. Ideal candidates should have expertise in Java Spring, REST APIs, and cloud te ...

    Engineering Lead: Java/.NET | Cloud & Architecture (Hybrid)

    Gazelle Global is looking for an experienced Engineering Lead for a long-term contract in London or Bristol. This hybrid role focuses on leading engineering teams in cloud and enterprise delivery while being technically hands-on when necessary. Candidates should have strong experience with modern software engine ...

    Hybrid Java Engineering Lead – High Performance Security

    CloudCo Solutions Ltd is seeking a Java Developer to take the lead on projects and develop high-quality software solutions. The role requires experience in designing secure Java solutions in complex environments and a commitment to engineering best practices. This position offers hybrid working, requiring at lea ...

    Senior Java Architect: GenAI & Cloud Native Solutions

    Multinational Company is seeking a Full Stack Architect in Greater London who possesses strong expertise in Java SpringBoot and React, alongside hands-on experience in building and deploying GenAI solutions on AWS. This role focuses on leading architecture design, driving scalable cloud-native solutions, and int ...

    FiTP Middle Office Senior Java Developer Citi

    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. Job O ...

    Lead SDET – AWS, Java & Spring Boot Automation

    GIOS Technology is hiring a Lead Test Engineer / Principal SDET to develop and implement effective test strategies within microservices environments. The position requires extensive experience in automation with Java and Selenium, solid skills in API and performance testing, and familiarity with CI/CD practices. ...

    Senior Java Developer – Microservices full stack developer

    Join Our Team as a Senior Java Developer –Microservices full stack developer We are seeking an experienced Senior Java Developer to design, build, and operate high-performance, scalable microservices within a regulated financial environment. If you have 7+ years of Java expertise, strong Spring B ...

    Java (Kotlin) Developer (Agile, Test Driven) AVP

    Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we ...

    FX Risk — Lead Java Developer | Vice President

    Citi’s Markets technology team is growing at lightning speed, and we’re looking for talented technologists to help build the future of global banking. Our teams are creating innovations used across the globe. As the world’s most global bank, Citi provides an opportunity to touch every corner of the globe a ...

    Remote Senior Java Developer – Crypto Exchange Connectivity

    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++. The ideal candidate has experience with crypto ...

    Senior Java Backend Lead — Build & Scale Platform

    An innovative firm is seeking a senior Java developer to join their pioneering team as they prepare for a beta launch of a cutting-edge, multi-platform solution. This role offers the unique opportunity to shape the development function and establish Agile standards within a collaborative environment. As the firs ...

    Hybrid Senior UI/UX Developer (React/Java)

    Project Recruit is seeking a Senior UI UX Developer for a 6+ month contract based in Sheffield, UK. This hybrid role allows remote work three days a week. The ideal candidate will have strong experience in UX design and proficiency in Java technologies and ReactJS. Responsibilities include delivering intuitive i ...

    Senior Java Backend Lead — Build & Scale Platform

    An innovative firm is seeking a senior Java developer to join their pioneering team as they prepare for a beta launch of a cutting-edge, multi-platform solution. This role offers the unique opportunity to shape the development function and establish Agile standards within a collaborative environment. As the firs ...

    Java Developer — Struts Master with Jakarta Migration

    Net2Source (N2S) is seeking an experienced Java Developer with expertise in Apache Struts to join their team in Greater London. The role involves hands-on development for enterprise applications, particularly focusing on Java 11/17 and migrations to Jakarta EE. Candidates should have a strong background in Hiber ...

    Senior Java Consultant Hybrid UK | Lead & Transformation

    Tenth Revolution Group seeks a Senior Java Consultant or Lead Consultant for a hybrid role in Manchester. The successful candidate will have over 5 years of experience, focusing on designing and delivering solutions within cross-functional teams. Responsibilities include Java application development, maintaining ...

    Engineering Manager, Java/Kotlin Scale & Product Driven

    Pulse Recruit is looking for an Engineering Manager to lead a dynamic team in London. The role entails guiding technical decisions and ensuring excellent delivery in a modern digital environment. The ideal candidate has substantial experience in Java or Kotlin, strong background in team development, and stakehol ...

    Senior Java Developer Microservices full stack developer

    Join Our Team as a Senior Java Developer –Microservices full stack developer We are seeking an experienced Senior Java Developer to design, build, and operate high-performance, scalable microservices within a regulated financial environment. If you have 7+ years of Java expertise, strong Spring Boot and ...

    Senior Java Developer (Low Latency Payments Systems)

    Who We Are: We are a fast growing business and technology consultant company co-founded in 2019. We offer a custom-tailored, white-glove engineering service fit for our clients, because a digital transformation is more than just technology. With a successful track record of being a preferr ...

    Java Backend Developer AI Powered APIs (Remote)

    YO IT Consulting seeks an experienced Java Developer - AI Expert for a part-time remote position. In this role, you'll design and enhance backend APIs while collaborating with AI research. Key responsibilities include developing scalable REST and GraphQL endpoints, ensuring data validation and security, and test ...

    Junior Developer – Salesforce & JavaScript/Java Growth Path

    The Portfolio Group is seeking a motivated junior developer to join a growing technology team in Manchester. Ideal candidates will have 1-2 years of experience, eager to enhance skills in Salesforce or full-stack development. The role involves assisting in application design and development, writing cl ...

    Senior Java Developer: Cloud Native Microservices & DevOps

    NTT DATA North America is looking for an experienced Senior Java Developer to join their team. The role involves designing, developing, and maintaining scalable, cloud-native applications using Java and Spring Boot, alongside CI/CD and DevOps methodologies. Candidates should have significant experience ...

    Senior Solutions Architect Cloud, Java & Data Platforms

    Royal London Group is looking for a Senior Solutions Architect in Alderley Edge, United Kingdom. This full-time role requires a strong technical background in Java, .NET, Azure, and CI/CD, along with hands-on experience in architectural frameworks. Ideal candidates should be knowledgeable in data platforms like ...

    Senior Java Architect – Scalable Gaming Backend (London)

    Eeze is looking for an experienced Java Architect based in London, United Kingdom, who can lead the architectural design and technical evolution of our gaming platform. This role will require building a robust, scalable backend ecosystem capable of supporting high concurrency. The position is full-time, with a c ...

    Java Developer in Manchester Nextech Group Ltd

    Java Developer Manchester, UnitedKingdom Posted 9 months ago Tech Stack Java Spring Framework Salary £45,000 - 70,000 per year Requirements Strong Java development experience using Spring-based frameworks. Knowl ...

    Senior Java Backend Architect Payments, Cloud Native

    Verifone is seeking a Senior Developer in London to design and implement high-performance backend services for its payment gateway. This role requires expertise in Java 17, Spring Boot and microservice architectures. You will collaborate closely with cross-functional teams, ensuring security and reliability in a ...

    Graduate Web Developer (ASP.NET/Java/C#) – London

    Graduate Recruitment Bureau is seeking a Graduate Web Developer in Greater London. The role requires in-depth experience with major programming languages like C#, Java, or C++, as well as exposure to object-oriented programming. Ideal candidates should also have a knowledge of ASP.NET and the .NET framework. The ...

    🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

    Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

    To-Do Planner

    Organize your job search and personal tasks. All data is confidential.

    Open Planner →

    Wellbeing Center

    Access your confidential wellness report and resources to manage job search stress.

    Check Wellbeing →

    Skill Coach

    Plan your skill development with O*NET support to stay competitive in your field.

    Start Coaching →

    Outfit Helper

    Get AI-powered suggestions on what to wear for your next interview.

    Find Outfit →

    Income Tax Calculator

    Plan your finances with our calculator, updated for 2025 tax regulations.

    Calculate Tax →

    Salary Benchmark

    Get accurate, AI-supported salary trends to know your worth and negotiate better.

    Check Salaries →

    Interview Practice

    Practice for any interview with AI-enabled Q&A sessions. All data is private.

    Start Practicing →

    Interview Predictor

    Use our AI-supported tool to predict potential interview questions based on your resume.

    Predict Questions →

    Interview Practice Timer

    Use our mock interview trainer to perfect your answers under timed conditions.

    Start Timer →

    Behavioral Mastery

    Ace tricky behavioral interviews with our AI-powered practice module.

    Master Answers →

    Question Journal

    Confidentially record interview questions you were asked for future reference.

    Open Journal →

    Interview Ace

    A comprehensive tool to help you master every aspect of your interviews.

    Become an Ace →

    Q&A Logs

    Confidentially track your answers to common questions and refine them over time.

    View Logs →

    Application Planner

    Schedule and organize your job applications in one confidential planner.

    Open Planner →

    Cover Letter Tool

    Create perfect, tailored cover letters for each application with AI support.

    Generate Letter →

    Resume Score

    Get instant feedback on your resume with our NLP-supported analysis tool.

    Check My Score →

    ATS Score

    Check your resume's compatibility with Applicant Tracking Systems (ATS).

    Check ATS Score →

    Application Analyzer

    Use AI to analyze job descriptions and optimize your application materials.

    Analyze Application →

    Career Visualizer

    Confidentially plan and visualize your long-term career path and goals.

    Visualize My Career →

    Offer Genius

    Get intelligent insights and strategies to confidently negotiate job offers.

    Negotiate Offers →

    JobFlow

    Track your entire job search progress from application to offer with this intelligent tool.

    Track My Flow →

    JobSense

    Our intelligent matching engine that provides smart job recommendations.

    Get Smart Matches →

    Networking Toolkit

    Tools to build and manage your professional connections. All data is confidential.

    Build Network →

    Professional CV

    A classic, O*NET supported template for corporate and professional roles.

    Use This Template →

    Executive CV

    A premium, O*NET supported template designed for senior and C-level positions.

    Use This Template →

    Modern CV

    A fresh, stylish, O*NET supported template perfect for tech and modern industries.

    Use This Template →

    Creative CV

    A visually distinct, O*NET supported template for design and artistic roles.

    Use This Template →

    Minimalist CV

    A clean, simple, O*NET supported template that focuses purely on content.

    Use This Template →

    Europass CV

    The standard European Union recommended format for wide compatibility.

    Use This Template →

    Student CV

    An institution-recommended template perfect for internships and first jobs.

    Use This Template →

    Graduate CV

    An institution-recommended template for recent graduates entering the workforce.

    Use This Template →

    Academic CV

    The researcher-recommended format for roles in academia and research.

    Use This Template →

    Developer/IT CV

    A tech-savvy recommended template to highlight your technical skills.

    Use This Template →

    Skilled Worker CV

    A trades-recommended template to showcase hands-on skills and experience.

    Use This Template →

    Monochrome CV

    A sleek, black-and-white, O*NET supported template for a professional look.

    Use This Template →

    Art CV

    An artist-recommended template that allows your creativity to shine.

    Use This Template →

    Harvard CV

    A researcher-recommended template based on the classic Harvard format.

    Use This Template →

    Volunteer Research

    Help us improve our platform by joining our community research program.

    Join Research →

    Review Us

    Share your experience with our tools to help other job seekers.

    Share Experience →

    Register

    Create your free account to save jobs, build your profile, and track applications.

    Create Account →

    Login

    Access your dashboard, manage applications, and continue your job search.

    Access Your Account →

    Profile Builder

    Create a comprehensive professional profile that attracts recruiters and showcases your skills.

    Build Your Profile →

    View Profile

    See your public profile exactly as employers will see it. Make sure it's perfect.

    Preview Profile →

    Bookmarked Jobs

    Keep track of all your saved job opportunities in one organized place.

    View Saved Jobs →

    Your Reviews

    View and manage all the company reviews you've submitted.

    See Your Reviews →

    Following

    Manage the list of companies you follow to stay updated on their new openings.

    Manage Following →

    Find Companies

    Discover and research top employers in your country and industry.

    Discover Employers →

    Standalone CV Builder

    Use our O*NET supported CV builder to create a professional resume from scratch.

    Build Your CV →

    PDF to DOC (Beta)

    Convert your PDF resumes or documents into editable Word (DOC) format.

    Convert PDF →

    DOC to PDF (Beta)

    Create universally compatible PDF documents from your Word (DOC) files.

    Create PDF →

    General FAQ

    Find answers to common questions about our job site and platform.

    Read FAQ →

    Job Seekers FAQ

    Get help and find answers to questions specifically for job seekers.

    Get Help →

    Job Matching

    Learn about the technology and algorithms behind how we match you to jobs.

    Learn How →

    Personalized Matching

    Discover how we use your profile and activity to provide customized job suggestions.

    Learn More →

    Quick Apply

    Understand our fast application process and how to make the most of it.

    Learn More →

    Alert Frequency

    Learn how to manage your job alert settings so you get the updates you want.

    Manage Settings →

    Job Alerts Guide

    A complete guide to understanding how job alerts work and how to use them effectively.

    Read Guide →

    Resume Matching

    Learn how our system matches your resume to job requirements.

    Learn More →

    Ethical Branding

    Read our guide to building a professional and ethical personal brand.

    Read Guide →

    Candidate Visibility

    Learn how to increase your visibility to recruiters on our platform.

    Increase Visibility →

    Verified Badge

    Find out how you can get a verified badge to build trust with employers.

    Get Verified →

    AI ATS Technology

    Learn about the advanced AI and ATS technology that powers our platform.

    Learn More →

    ATS Ranking

    Understand how Applicant Tracking Systems rank you as an applicant.

    Learn More →

    Semantic Matching

    Learn how our AI-powered semantic matching goes beyond keywords.

    Learn More →

    💡 Tools that really enhance your application chances and career growth.

    Go to Your Dashboard →

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