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
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.

Reset

Create Job Alert

 
   
Reset

Staff Backend Engineer (FinTech) Bangkok Relocation

A leading online travel platform is seeking a Staff Software Engineer (FinTech) to design robust backend systems and scalable data pipelines. The ideal candidate has over 8 years of experience with Java, Kotlin, Scala, or C# and a passion for software craftsmanship. This role offers an opportunity to influence A ...

Hybrid Data Lead Engineer Python/TypeScript + GraphQL

Java Script Works is searching for a Lead Software Engineer - Data based in Greater London, United Kingdom. This hybrid role focuses on optimizing the platform's performance, requiring strong programming skills in Python and TypeScript, alongside knowledge of the full Software Development Life Cycle (SDLC). Remu ...

Hybrid Data Lead Engineer Python/TypeScript + GraphQL

Java Script Works is searching for a Lead Software Engineer - Data based in Greater London, United Kingdom. This hybrid role focuses on optimizing the platform's performance, requiring strong programming skills in Python and TypeScript, alongside knowledge of the full Software Development Life Cycle (SDLC). Remu ...

Senior Software Engineer: Lead & Mentor on Scalable Systems

A leading insurance provider in Greater London is seeking an experienced software engineer proficient in JAVA, .NET, and JavaScript. The role involves consulting with users, guiding teams, and developing innovative software solutions. Candidates must possess a strong programming background and be familiar with A ...

Staff Backend Engineer (FinTech) Bangkok Relocation

A leading online travel platform is seeking a Staff Software Engineer (FinTech) to design robust backend systems and scalable data pipelines. The ideal candidate has over 8 years of experience with Java, Kotlin, Scala, or C# and a passion for software craftsmanship. This role offers an opportunity to influence A ...

Tech Lead: Java & Cloud, Hybrid & High Impact

A global transactional solutions leader is looking for a Senior Software Engineer (Tech Lead) in London. The role involves leading a cross-functional agile team, guiding software development, and ensuring robust solutions. Ideal candidates have solid Java and Spring Boot experience, familiarity with cloud platfo ...

Senior Embedded Software Engineer On Site, DV Cleared

A leading defense technology company in Malvern is seeking a Senior Embedded Software Engineer to work on innovative solutions in the field of intelligence security. The ideal candidate will have extensive experience in software development, working with C, C++, Python, Java, or C#. This role is on-site and requ ...

Lead Software Engineer Build Secure, Scalable Systems

A leading technology firm in Cheltenham is seeking a Principal Software Engineer. This role involves leading a team, working through the software development lifecycle, and ensuring customer requirements are met. Candidates should have strong experience in Java or frontend technologies, excellent communication s ...

AI Driven Frontline Software Modernization Engineer

A leading enterprise software firm in the United Kingdom seeks an experienced Full-Stack Software Engineer to act as a Forward Deployed Engineer. This role involves embedding with teams to lead modernization efforts, drive AI-assisted SDLC practices, and manage technical changes. The ideal candidate will have ov ...

Java Tech Consultant: Derivatives & Trading Systems

A financial services firm in the United Kingdom is seeking a Java Technical Consultant to join their Technology Solutions team. The role focuses on coding in Java, assisting with data model mapping, and addressing technical queries in trading technology. Ideal candidates will have Java and Python proficiency, ex ...

Java Developer x4 Knutsford hybrid working

Java Developer x4 - Knutsford - hybrid working This range is provided by Adecco. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Java Developer x4 - Knutsford - hybrid working ...

Hybrid Java & PEGA BPM Developer (Contract)

A staffing agency is urgently seeking a Java & PEGA BPM Developer. This mid-senior level position requires strong experience with Java, Spring Boot, Microservices, and hands-on experience with PEGA BPM. The working model is hybrid, with 2 days on-site weekly. Interested candidates are encouraged to apply directl ...

Senior Java Developer — Low Latency & Performance

A global technology company in London is seeking a Mid-Senior Java Developer to lead the development of low-latency applications. The ideal candidate has a Bachelor's degree in Computer Science and proven expertise in Java development. Responsibilities include optimizing performance, mentoring junior developers, ...

Technical Design Lead AWS & Java Microservices

Tata Consultancy Services is hiring a Technical Design Lead in Luton, UK. This permanent role involves serving as the primary point of contact for technical support, developing RESTful APIs and microservices with Java and Spring Boot, and utilizing AWS for cloud-native application design. Seeking candidates with ...

IMS Core Engineer

Position: IMS Core EngineerLocation: Reading and customer offices as requiredSalary: On ApplicationDuration: OngoingHours: Monday-Friday, 9am-5:30pm Overview of an IMS Core Engineer As an IMS Core Engineer, you'll be part of a specialist technical team responsible for ...

Backend Engineer

Back End Software Engineer at Revolution Technology An award‑winning SaaS customer loyalty platform are currently seeking a Back End Software Engineer to join their growing team in London. The company has been recognised by the Financial Times as one of the fastest‑growing companies in th ...

Senior Fullstack Engineer in London Shamaazi

Senior Fullstack Engineer London, United Kingdom Posted about 1 year ago Tech stack React Java Go Node.js JavaScript Full-stack Frontend Development Engineering Culture Build across the sta ...

Senior Fullstack Engineer in London Shamaazi

Senior Fullstack Engineer London, United Kingdom Posted about 1 year ago Tech stack React Java Go Node.js JavaScript Full-stack Frontend Development Engineering Culture Build across the sta ...

Senior AI Native Engineer — Frontline Client Delivery

Indicium Tech is seeking a Forward Deployed Software Engineer to join their team in Greater London. You will lead engagements that revolutionize how enterprises build software, embedding AI native development at every stage. The ideal candidate has at least 5 years of experience in software engineering, a solid ...

Windows on Snapdragon: Software Apps Engineer

Qualcomm in Farnborough is seeking a Software Application Engineer to provide technical expertise on software systems. Responsibilities include collaborating with teams to debug issues, creating technical presentations, and driving customizations tailored to customer requirements. Candidates should have a Bachel ...

Senior Software Engineer Transit Tech & Scalable Systems

A global transit solutions provider is seeking a Senior Software Engineer to join their dynamic team in Manchester. The ideal candidate will have over 5 years of software development experience, focusing on technologies like C++ and Java, as well as proficiency with AWS serverless architecture. Responsibilities ...

Senior SRE Engineer Reliability, Automation & Cloud

JPMorgan Chase & Co. seeks a Software Engineer III in Keynsham, tasked with addressing complex business challenges through effective software solutions. The role emphasizes system reliability, availability, and performance. Key responsibilities encompass designing and implementing software solutions, d ...

Senior AI Driven Software Engineer – Multi Agent Systems

A leading software development company in Greater Manchester is seeking a Senior Software Engineer specializing in AI-enabled engineering. This role requires over 5 years of experience in software engineering and proficiency in Java, TypeScript, and MySQL. The candidate will design multi-agent systems and refine ...

Senior Backend Architect & Tech Lead (Relocation Included)

Agoda is seeking a seasoned software engineer in Greater London to architect and develop scalable backend systems. With over 10 years of experience in software engineering, you will lead large-scale initiatives, foster collaboration across teams, and ensure high-quality software practices. Strong backend skills ...

Senior SRE Engineer Reliability, Automation & Cloud

JPMorgan Chase & Co. seeks a Software Engineer III in Keynsham, tasked with addressing complex business challenges through effective software solutions. The role emphasizes system reliability, availability, and performance. Key responsibilities encompass designing and implementing software solutions, d ...

Java Backend Engineer II — Growth in Secure, Scalable Apps

A prominent financial services firm in Glasgow is seeking a Software Engineer II to enhance and deliver software components securely. This role involves Java development and technical troubleshooting in a collaborative team environment. Ideal candidates have formal software engineering training and hands-on expe ...

Senior Data Integration Platform Engineer

DRW Holdings, LLC. is looking for a Senior Software Engineer specializing in Data Integration, located in London. The ideal candidate will have 8+ years of experience in developing data-heavy software and expertise in Python, Java, or C#. Responsibilities include designing software services, driving architectura ...

DV Cleared Senior Software Engineer Cloud/Microservices

Energy Jobline ZR is seeking a Senior Software Engineer to join a leading defense/cyber security company in London. This permanent role offers a salary up to £100,000 plus a clearance bonus. The ideal candidate will hold current DV clearance and have experience with programming languages including Java, Python, ...

DV Cleared Senior Software Engineer Cloud/Microservices

Energy Jobline ZR is seeking a Senior Software Engineer to join a leading defense/cyber security company in London. This permanent role offers a salary up to £100,000 plus a clearance bonus. The ideal candidate will hold current DV clearance and have experience with programming languages including Java, Python, ...

Software Engineer Web Apps (Agile + DevOps)

Java Script Works is seeking an innovative and detail-oriented Software Engineer to join their team in Greater London, United Kingdom. The role is focused on developing software applications that meet client needs while ensuring the highest quality standards. Ideal candidates should have experience with modern w ...

Java Backend Engineer II — Growth in Secure, Scalable Apps

A prominent financial services firm in Glasgow is seeking a Software Engineer II to enhance and deliver software components securely. This role involves Java development and technical troubleshooting in a collaborative team environment. Ideal candidates have formal software engineering training and hands-on expe ...

Senior Software Engineer Transit Tech & Scalable Systems

A global transit solutions provider is seeking a Senior Software Engineer to join their dynamic team in Manchester. The ideal candidate will have over 5 years of software development experience, focusing on technologies like C++ and Java, as well as proficiency with AWS serverless architecture. Responsibilities ...

Vice President, Senior Backend Architect – Aladdin Platform

ENGINEERINGUK is seeking a Backend Software Engineer to drive high-performance systems on their Aladdin trading platform. The ideal candidate will have a strong foundation in Java and 8+ years of software engineering experience, focusing on building resilient and well-tested software. The position requires colla ...

AI Driven Software Engineer: Design, Automate & Impact

AHK Group Ltd has an exciting opportunity for a Software Engineer to join our IT – Software Engineering Team in Liverpool. The role involves developing AI-driven software, with responsibilities including writing and auditing code, creating automation tests, and providing technical support. Candidates should poss ...

Senior AI Driven Software Engineer – Multi Agent Systems

A leading software development company in Greater Manchester is seeking a Senior Software Engineer specializing in AI-enabled engineering. This role requires over 5 years of experience in software engineering and proficiency in Java, TypeScript, and MySQL. The candidate will design multi-agent systems and refine ...

Senior Software Engineer, Services & Automation

A leading financial services company is seeking a Senior Software Development Engineer in Nottingham. The successful candidate will design and develop software solutions that enhance business processes, work collaboratively with stakeholders, and provide technical leadership. This role is ideal for someone with ...

Senior Java Architect & Tech Lead (AWS)

A leading retail company in the United Kingdom is seeking a Principal Software Engineer to lead the software development lifecycle. This role involves hands-on designing, implementing, and improving software solutions in collaboration with various teams. Ideal candidates will have extensive experience in Java an ...

Executive AI Governance Platform Architect

JPMorganChase in Bournemouth seeks a Principal Software Engineer to design and build platforms for AI Governance Engineering. The role involves developing best-in-class tooling, integrating compliance into workflows, and mentoring other engineers. Ideal candidates will have extensive software engineering experie ...

Platform Engineer, Apollo Deployment & Orchestration

A leading tech company in the UK is seeking a Software Engineer for their Apollo platform. This role involves building software at scale, collaborating closely with teams to solve complex problems, and participating throughout the product lifecycle. Ideal candidates will have experience in software engineering, ...

Senior Platform Engineer AI Driven DevOps & Infra

A leading AI software delivery platform is seeking an experienced Infrastructure as Code Management engineer in Belfast. This role involves designing, developing, and maintaining critical software solutions while mentoring teams. Candidates should have over 7 years of experience in Java and Golang, strong analyt ...

Principal Engineer: Logistics & Fulfilment Orchestration

A leading digital retailer in Liverpool is seeking a Principal Software Engineer to design and build front-end and back-end solutions in an agile team. The role involves leading the software development life cycle, mentoring engineers, and influencing engineering standards. The ideal candidate has extensive expe ...

BMDS Software Engineer – Onsite (Secret Clearance)

A leading defense technology company is seeking a BMDS Software Engineer in the United Kingdom, England, Tipton. The role involves designing and implementing software for mission-critical defense systems in a collaborative Agile setting. Ideal candidates will have a STEM degree, significant experience in softwar ...

Senior Fullstack Developer/Tech Lead with Java and React

Senior Full stack Developer / Tech Lead (Java & React) PermanentGlasgow (Hybrid) Join an innovative, fast‑moving technology team building modern SaaS solutions that drive meaningful impact across complex business environments. As a Principal Engineer / Tech Lead, yo ...

Senior Fullstack Developer/Tech Lead with Java and React

Senior Full stack Developer / Tech Lead (Java & React) PermanentGlasgow (Hybrid) Join an innovative, fast‑moving technology team building modern SaaS solutions that drive meaningful impact across complex business environments. As a Principal Engineer / Tech Lead, yo ...

Senior Java Architect: Platform & Microservices Leader

A leading financial markets infrastructure provider is seeking a Principal Java Architect. This role involves architectural leadership for Java-based platforms, ensuring alignment with business goals and mentoring engineers. The ideal candidate has extensive expertise in Java and architectural practices, emphasi ...

Junior Java Full Stack Associate Consultant

Role Details Global Grade - A At Capgemini Invent, we believe difference drives change. As inventive transformation consultants, we blend our strategic, creative and scientific capabilities, collaborating closely with clients to deliver cutting‑edge solutions. Join us to drive tra ...

Java Developer: Regulatory Systems & Crypto Security

bet365 is seeking a Java Developer in Manchester to create and maintain critical regulatory systems. This role involves developing high-availability Java systems that ensure compliance with regulations. Candidates should have commercial DevOps experience and be comfortable with XML or XSD validation. You will wo ...

Java Developer Algo Trading | Front Office

Contact email: Job ref: JDAG/FF/0202 Startdate: ASAP Are you a skilled Java developer with a passion for financial markets and algorithmic trading? This is a rare opportunity to step into a front-office role where you'll work at the intersection of software development and q ...

Java Developer — Regulatory Systems & Security (Hybrid)

Bet365 is seeking a Java Developer to create and maintain critical regulatory systems in Java. This role involves developing highly available Java systems that ensure compliance with regulatory traceability requirements. You will work in a collaborative and fast-paced environment, with responsibilities including ...

Java Developer with Apache Struts Migration

Net2Source Inc. is one of the fastest growing diversities certified global workforce solutions companies with an unprecedented YoY growth of over 100% for last 6 years working with Fortune 1000/Global 2000 across 34 countries and 5 continents including North America, South America, Europe, Asia, Australia, ...

🚀 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

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