1 to 25 of 33 Part-Time Java Software Engineer Jobs in the UK excluding London

Senior Java Software Engineer - Java, Spring boot, Terraform, AWS, React, TypeScipt Location: Remote, occasional travel to the office Salary: Up to £75,000 + benefits Why Apply? Play a pivotal role in designing, building, extending an end to end procurement platform aimed at customers in the … will provide technical leadership, mentor colleagues, and actively contribute to continuous improvement initiatives, making best use of modern cloud practices and innovative solutions. Senior Java Software Engineer - Responsibilities Design, develop, and maintain robust Java applications hosted in AWS, ensuring scalability and performance. Collaborate with team members … tested. Take ownership of troubleshooting, debugging, and resolving complex production issues. Mentor junior developers by providing guidance, conducting code reviews, and sharing knowledge about Java and AWS best practices. Proactively identify and implement improvements to development processes and infrastructure automation using CI/CD (e.g., GitHub Actions). Monitor More ❯

Java Engineer – Cloud (GCP or AWS) | Scalable Systems | Product Environment Are you a Java engineer who thrives on building scalable, cloud-native systems? Want to make a tangible impact on modern product development in a fast-moving team? My client is looking for a Java Engineer with strong experience in either Google Cloud Platform (GCP) or Amazon Web Services (AWS) to join their high-performing engineering team. You’ll be developing robust, distributed systems and contributing to cloud infrastructure in a product-focused environment. Key Responsibilities: Design, develop, and deploy high-performance backend … testing, and resilience of services. Take ownership of cloud infrastructure components using GCP or AWS services. Essential Skills and Experience: Strong commercial experience with Java (Java 11 or newer) . Hands-on experience with GCP or AWS , including services such as Cloud Run, Pub/Sub, BigQuery, S3 More ❯

Software Engineer - Java OR C++ Gloucestershire/London - 4 days on-site A global leader in aerospace, defense, and advanced technologies is looking for a permanent Software Engineer (Java/C++). This company is at the forefront of developing cutting-edge solutions for … across air, land, sea, and space domains, supporting both government and commercial clients worldwide You will play a key role in developing cutting edge software systems and applications. You may specialise in just one area or operate across multiple Software Development disciplines with a specific focus on the … British national with active SC or DV clearance. Candidates eligible and willing to undergo DV vetting will also be considered. Key requirements : Proficient in Java, and/or C++ Experience in JavaScript/TypeScript & React Experience of developing on Linux. Knowledge of mocking up and unit testing frameworks such More ❯

Senior Software Engineer - Full Stack Engineer- Java, React, Spring Boot An exciting opportunity to join an innovative SaaS provider in the online gaming space. Work with top-tier clients in the UK and USA, contributing to the development of new software solutions within a rapidly … expanding company. Work within their software engineering squads to develop new and modernize legacy applications using microservices. You'll primarily focus on Java backend, with a practical understanding of frontend development. As such you will need: Expertise in core Java development Spring Boot Commercial JavaScript experience Strong More ❯

Role: Senior Java Software Engineer Salary: £60,000 - £80,000 - DOE Location: Ipswich (Hybrid) Type: Permanent About the job: Are you an experienced Senior Software Developer who loves variety and still loves learning new things, while connecting with new people along the way? This role could … with key stakeholders within the business and estimating development timelines. I have partnered with a fantastic business who are looking to add a Senior Java focused Developer to the team. Senior Software Developer required skills: 5 year’s commercial experience minimum Strong Java background SQL HTML, CSS More ❯

Position: Lead Software Engineer Location: Manchester (Hybrid – 2 days per week in office) Salary Range: £85,000 – £140,000 Our client is shaping the next chapter of digital banking with one of the biggest and most innovative banking software projects in Europe. We’re looking for innovative … minds to help lead the way. If you're a hands-on Java engineer with a passion for scalable architecture and modern cloud-native development, this is your chance to work on something big. You’ll take a key role in a strategic engineering team that’s focused … by architecting/building performant services and APIs which support innovative financial products. What You’ll Do Lead engineering efforts on backend services in Java, built for cloud deployment and aligned with modern software architecture principles. Design and maintain integration layers and orchestration services that connect Vault with More ❯

PE Global is recruiting a Java Software Engineer for our industrial manufacturing client based in Wrexham. The role is an initial 12-month contract and the role is hybrid. The rates for this role is between £26.52 and £35.27 per hour. Responsibilities: Be a hands-on technologist … often exploring the inner workings of the tools and libraries you use to understand how they work Requirements: Demonstrable understanding of best practices in software engineering Good communication skills demonstrating the process and progress to stakeholders, as well as internal team communication Proficiency in at least one general purpose … programming language (Java or JavaScript/Typescript) with willingness to learn new languages and technologies Experience or familiarity with some of the core platform frameworks and libraries: Spring Boot, ReactJS, React Native, Docker Familiarity with Linux environment Enjoy participating in the full lifecycle of the software product: from More ❯

low latency pre-trade credit component we deliver a performant, cost effective solution to your eFX needs. Role Lucera Financial Infrastructures is hiring a Java Software Engineer for our Belfast office to work on our core infrastructure as a service platform, used by some of the top … pick up new technologies Background in taking products from design right through to delivery Strong sense of writing quality maintainable code Commercial experience in Java (8+) Use of Micronaut/Spring (or equivalent) Frameworks Developing against Relational and NoSQL Database (MongoDB, Postgres etc) Experience with unit testing methodologies and More ❯

Senior Java Engineer – Core Java, Algo, Distributed Systems Location: Belfast – 2/3 days per week needs to be possible (only considering candidates in NI) Type: Contract Industry: Investment Banking Duration: ASAP – long term (12 months to start with extensions) We’re seeking Senior/Lead Java … systems that support trading across Equity Swaps, Delta One, and Prime Brokerage. While low-latency expertise is not essential, a deep command of Core Java and algorithmic/data structure proficiency is critical to succeed in this complex and performance-sensitive environment. Key Responsibilities: Design and enhance trading engines … microservices architecture , and contribute to distributed system designs. Lead database migrations from legacy systems (e.g., Sybase , DB2 ) to modern platforms. Required Skills: Strong Core Java expertise, with a focus on performance tuning and optimisation . Solid understanding of algorithms , data structures , and concurrent distributed environments . Proven experience with More ❯

Java Developer - Java, Swing, Networking Location: West Midlands, UK (2 days on-site per week) Salary: £60,000 - £70,000 Would you like to work with engineers who have built award-winning products? Are you excited by challenging greenfield projects? Do you want to work on a product … used by thousands of professionals worldwide? We have partnered with an international leader in aviation and transportation software solutions. As they continue to grow, they are looking for Java Developers with experience in large-scale desktop applications and critical operational software. Why This Role? Work on high-impact … aviation and transportation software used globally. Join a team building mission-critical systems in a cutting-edge tech environment. Key Skills & Requirements: 3+ years of experience in Java-based software development Proven track record in large-scale desktop and client/server applications Hands-on experience in More ❯

Java Developer You must be eligible for SC Clearance London based - Hybrid Working My Client is the leading innovation and transformation consultancy in the UK and they are currently in search of a highly talented Java Developer to join their offices in London. Successful candidates will be helping … of clients such as law enforcement agencies, telecommunications companies and compliance agencies. What will you be doing Apply strong object-oriented programming principles in Java to design and implement robust and scalable solutions. Leverage Java 8 features, including streams, functional interfaces, and collections, to enhance code readability and … solutions and implement scheduling using Jenkins/Ansible. Use a combination of Cucumber, JUnit, Selenium, and Postman for comprehensive testing. Requirements for the ideal Java Developer Minimum of 3+ years of hands-on experience in Java software development Extensive experience in the specified technologies and tools. Proven More ❯

a well-known technology business based in Edinburgh who are looking to grow their hugely successful engineering team and are looking for a Senior Software Engineer in the Java space to work on customer facing applications and systems. There is a huge focus on innovation with some … major projects in the works. You will have experience developing highly scalable and available back-end systems & API’s using Java and Cloud based infrastructure and technologies ideally AWS. Although this is predominantly a back-end role, there will also be the option to get involved in some front … operate a Hybrid model where it is usually 1 day a week onsite in their modern Edinburgh office. Experience Strong back-end experience with Java Experience with AWS as well as understanding DevOps concepts such as IaC (we use Terraform) Experience with Kafka and event streaming Experience working on More ❯

Location: UK Remote (occasional travel to HQ once per quarter) A leading SaaS organisation is looking for a Senior Java Developer to join its expanding technology team. You’ll contribute to the ongoing development of a next-generation platform, with a strong focus on high-performance search capabilities and … data processing. This is a fantastic opportunity to work on impactful technology in a forward-thinking, data-driven environment. Your Role As a Senior Java Developer, you’ll be instrumental in building and evolving a resilient data platform that underpins key SaaS offerings. You’ll work closely with engineers … real value from complex data. Key Responsibilities Write clean, maintainable, and well-tested code following Agile and TDD practices Contribute to both backend services (Java) and modern front-end frameworks (React/TypeScript) Develop and fine-tune search functionality using technologies like Lucene, Solr, or OpenSearch Collaborate with Data More ❯

Senior Backend Software Engineer Up to £70,000 + 15% Bonus + Stock Options Join a fast-growing tech company that's reimagining how modern marketplaces are built. We're looking for a hands-on Senior Backend Engineer to help evolve a highly scalable platform powered by … world problems. Help shape engineering practices and mentor junior developers. Collaborate with a remote-first, high-performing team across time zones. Tech Stack: Kotlin, Java (or other JVM), Spring Boot, GCP, Kubernetes, Docker, Kafka, PostgreSQL, MongoDB, CI/CD pipelines. Experience in Go, Python, or C# also welcomed. What More ❯

Lead Java Developer with AWS A unique development opportunity to work on a Public Sector Based Large Scale program with an innovative market leader as Lead Java Developer. Requires a Lead Java developer with strong Java experience to create and implement solutions for our portfolio of … as well as supporting live systems and diagnosing incidents. You will join a team that prides itself on collaboration and engineering the best possible Java code. Essential: Java 17+, Spring Boot, Spring DataJPA, Spring Integration, Spring Batch, Microservices, Quartz, SQL Database (PostgreSQL), JPA (Hibernate), REST and SOAP Web … Jaspersoft, Spring extension projects (Data, Cloud, Batch, Security), Angular. • Public sector experience • 8-10 years of hands-on experience with large scale Spring based java projects. • Must have experience of supporting live systems and diagnosing incidents. • Experience in large scale integration projects involving microservices, messaging, web-services and distributed More ❯

Java Developer- Glasgow My Consultancy client is looking for several Java Developers to join them Up to £60k, benefits such as Bonus, 25 days Holiday, Paid for Certifications, Healthcare, Flexible hours and much more Hybrid working 2 says per week onsite in Glasgow Java, Spring, Spring Boot … techniques such as TDD, CI and Paired Programming. THE BENEFITS Bonus 25 days Holiday Paid for Certifications Healthcare Flexible hours Annual trips abroad THE JAVA DEVELOPER ROLE: You’ll be joining a Financial Service client in Glasgow, 2 days per week onsite. In this role, a developer will be … between external groups and the project team, while also tracking project progress, offering timely feedback, and fostering a culture of agility and continuous learning. JAVA DEVELOPER ESSENTIAL SKILLS: Java 8+ Spring/Spring Boot SQL REST CI/CD Leadership qualities Critical thinking skills TO BE CONSIDERED: Please More ❯

Java Developer- Glasgow My Consultancy client is looking for several Java Developers to join them Up to £80k, benefits such as Bonus, 25 days Holiday, Paid for Certifications, Healthcare, Flexible hours and much more Hybrid working 2 says per week onsite in Glasgow Java, Spring, Spring Boot … techniques such as TDD, CI and Paired Programming. THE BENEFITS Bonus 25 days Holiday Paid for Certifications Healthcare Flexible hours Annual trips abroad THE JAVA DEVELOPER ROLE: You’ll be joining a Financial Service client in Glasgow, 2 days per week onsite. In this role, a developer will be … between external groups and the project team, while also tracking project progress, offering timely feedback, and fostering a culture of agility and continuous learning. JAVA DEVELOPER ESSENTIAL SKILLS: Java 8+ Spring/Spring Boot SQL REST CI/CD Leadership qualities Critical thinking skills More ❯

Java Developer - Cheltenham - £40k - £60k On-site/Hybrid (MUST BE DV CLEARED) My client headquartered in Cheltenham, who deliver smart software solutions within sectors such as cyber technology, science, and engineering are actively seeking a Java Developer to join their ever growing team. You’ll have … fantastic opportunities to grow your skills in a dynamic and supportive environment. We offer a variety of software development roles, working on meaningful and high-impact projects for impressive clients. But that’s just one part of what makes this a great opportunity. It’s also about the people … and the culture – collaborative, inclusive, and genuinely focused on your development. Responsibilities: Develop, test, and maintain Java applications. Collaborate with team members to define and implement software solutions. Participate in code reviews and contribute to best practices. Troubleshoot and resolve software issues as they arise. Benefits: Flexible More ❯

Senior Java Developer 🌍 £100k–£150k 💸 - Remote Working 🏡 – 6+ years experience (PhD Required) Our client, a GreenTech specialising in optimum renewable energy software, is revolutionising the energy industry by making sustainable living accessible and effortless for both suppliers and consumers. They’re looking for a Senior Java Developer … passionate about new, advanced technologies, being able to create impactful solutions in a fast-paced, collaborative environment. Role Highlights 🌟 Design and implement high-performance software systems using Core Java, without relying on frameworks. Tackle multi-threaded, low-latency challenges, manage extensive data streams, and optimise asynchronous programming for … sustainable energy solutions, contributing to a greener future. Key Requirements ✅ Compulsory: A PhD in Computer Science and the ability to demonstrate extensive knowledge in Software Development. 6+ years with extensive hands-on experience in Core Java, developing systems from the ground up without frameworks. Advanced proficiency in multi More ❯

Java Developer is sought on a remote basis by a market leading professional services organisation based near Birmingham. This Java Developer would be joining the innovation arm of the business tasked with building complex, highly scalable greenfield solutions utilised by governments around the world to deliver key public … services. Due to the R&D driven culture within this team this Java Developer will be given opportunities to learn and work with the latest AI & machine learning technologies developing applications using a modern microservices, automated architecture. With a real commitment to employee wellbeing and personal development this Java … with 4 self promotion opportunities a year alongside companywide commitment to wellbeing by providing a best in class physical and mental wellbeing program. This Java Developer based near Birmingham should have most of the following key skills: 3 years plus of Java experience Strong Spring Boot framework experience More ❯

Senior Java Developer 🌍 Up to £150k 💸 - Remote Working 🏡 – 6+ years experience Our client, a GreenTech specialising in optimum renewable energy software, is revolutionising the energy industry by making sustainable living accessible and effortless for both suppliers and consumers. They’re looking for a Senior Java Developer who … is able to leverage advanced technologies to create impactful solutions in a fast-paced, collaborative environment. Role Highlights 🌟 Design and implement high-performance software systems using Core Java , without relying on frameworks. Tackle multi-threaded, low-latency challenges, manage extensive data streams, and optimise asynchronous programming for real … scalability. Drive projects that advance sustainable energy solutions, contributing to a greener future. Key Requirements ✅ 6+ years with extensive hands-on experience in Core Java, developing systems from the ground up without frameworks. Advanced proficiency in multi-threading, low-latency solutions, and data stream management. Strong understanding and practical More ❯

Position Overview: We are seeking a highly skilled and experienced Senior Fullstack Java Developer to join our growing team. The ideal candidate will have a deep understanding of Java and its ecosystem, with a proven track record of building robust, scalable, and efficient applications. As a Senior Java Developer, you will play a crucial role in the design, development, and deployment of our software solutions, working closely with cross-functional teams to deliver high-quality products. Mandatory Skillsets: They need hands-on developer with the below skills: Java Spring Boot Cassandra or any alternative NoSQL … now. Good to have: Individual Contributor Quick Learner Good communication skills Team Player ------------------------------------------------------------------------------------- About us Ascendion is a Global, leading provider of AI-first software engineering services, delivering transformative solutions across North America, APAC, and Europe. We are headquartered in New Jersey. We combine technology and talent to deliver More ❯

Month Contract Worker Type: Inside - Umbrella Interview process: 3 rounds Day to day: Insight Global is looking for Java Engineers to join a leading financial institution in Birmingham for a 1-year ongoing contract. The chosen candidate will be sitting in the Corporate Treasury Engineering group and be involved … technical stakeholders and as such, strong written and verbal communication are required for this role. Must haves: • 4+ years of experience in coding with Java and building and delivery software at scale • Experience with Spring and Hibernate • Experience with database technologies such as DB2, SQL, Mongo, and microservices More ❯

We're Hiring: Java Developer(s) | £50-80K + Benefits – Hybrid - Shropshire Join a leading digital consultancy that's reshaping how great software gets built. If you're driven by curiosity, collaboration, and continuous learning, they will want to talk to you. This role is hybrid with … to get to the office 2 days per week and eligible to undergo SC clearance. 🔧 What You'll Do Build robust, scalable microservices using Java and Spring Boot Deliver high-quality code through TDD, BDD, and pair programming Create and maintain RESTful APIs and asynchronous services Get hands-on … designers, and fellow engineers in Agile teams Contribute to a culture of innovation, knowledge-sharing, and continuous improvement ✅ What You Bring Strong experience with Java, Spring Boot, and integration frameworks Solid grasp of TDD, unit testing, and CI/CD practices Experience building synchronous and asynchronous microservices Familiarity with More ❯

We're Hiring: Java Developer(s) £50,000-£80,000 (multiple seniority levels available) Hybrid Working- Shropshire Join a leading consultancy! If you're driven by curiosity, collaboration, and continuous learning, this role is for you! You'll join a large, long-term digital transformation programme to modernise key … s office on a hybrid basis (average 2/3 days per week, rest from home) 🔧 What You'll Do Build scalable microservices using Java and Spring Boot Deliver high-quality code through TDD, BDD, and pair programming Create and maintain RESTful APIs and asynchronous services Get hands-on … implement cloud-native solutions Collaborate with analysts, designers, and engineers in Agile teams ✅ What You'll Bring Eligibility for SC Clearance Strong experience with Java, Spring Boot, and integration frameworks Solid grasp of TDD, unit testing, and CI/CD practices Experience building synchronous and asynchronous microservices Knowledge of More ❯