10 of 10 Permanent Java Developer Jobs in Portsmouth

Do you have a PhD in Computer Science? FULLY REMOTE Senior Java Developer – Sustainable Energy GreenTech Salary : £100-140k + benefits Location : fully remote from anywhere in the UK I am partnered with a unique energy software platform that is helping consumers transition towards a sustainable future … by producing energy as a services. They are in search of an enthusiastic and knowledgeable Senior Java Developer with a strong comprehension of the Core Java principles alongside a deep understanding in Advanced Computer Science: Algorithms Graph theory Interval graphs Compiler theory You will be a fantastic … Senior Java Developer if you have worked with Core Java and have extensive experience with Multithreading, Concurrency and Low Latency, because you will be building your own frameworks and designing new databases from scratch. Your role as a Senior Java Developer will include: - Domain modelling More ❯

Java Developer – Satellite Systems (Microservices, Agile, Spring Boot) Location: Portsmouth (Hybrid - x3 days per week on-site) 12 month contract Rates - Around £55 per hour (Inside IR35) Are you ready to work on technology that will launch the next generation of satellites? A leading global aerospace organisation is … seeking a skilled Java Developer to join a dynamic 7-person Scrum team, working on a critical software system for a new satellite platform. This is an exciting opportunity to contribute to cutting-edge space technology in a collaborative, agile environment. About the Role: You’ll be involved … throughout the full software development lifecycle, from design through to testing. The role will focus on building high-performance, secure, and scalable microservices using Java and Spring Boot, within a modern CI/CD DevOps setup. Key Responsibilities: Develop high-quality code as part of an Agile Scrum team More ❯

Java Developer – Satellite Systems (Microservices, Agile, Spring Boot) Location: Portsmouth (Hybrid - x3 days per week on-site) 12 month contract Rates - Around £55 per hour (Inside IR35) Are you ready to work on technology that will launch the next generation of satellites? A leading global aerospace organisation is … seeking a skilled Java Developer to join a dynamic 7-person Scrum team, working on a critical software system for a new satellite platform. This is an exciting opportunity to contribute to cutting-edge space technology in a collaborative, agile environment. About the Role: You’ll be involved … throughout the full software development lifecycle, from design through to testing. The role will focus on building high-performance, secure, and scalable microservices using Java and Spring Boot, within a modern CI/CD DevOps setup. Key Responsibilities: Develop high-quality code as part of an Agile Scrum team More ❯

Have you got a PhD background in Computer Science with a focus on Algorithms? Java Developer – Sustainable Energy 💰 £80,000 - £110,000 🚩 Fully Remote working from home anywhere in the UK We are so excited to be partnered with a Sustainable Energy Start-up on a mission to … and architectural decision-making when it comes the design and creation of new products, all while working from home. You will be an excellent Java Developer if you: Have worked in high-performing and low latency environments Are highly experienced using Core Java with multithreaded applications Possess … a highly flexible work-life balance, as well as unlimited potential to grow with the company as it grows itself, this is an unmissable Java Developer opportunity! If you would like to combine your deep understanding of algorithms and data structures with the ability to ‘do good’ and More ❯

Job Title: Senior Java Developer Location: Primarily Remote (with meet ups twice a month) Salary: £80,000 - £90,000 (Flexible based on experience) Are you an experienced Java developer looking for a new challenge? Do you thrive in an environment where you can take ownership of … Then this may be for you: Mostyn Chase are conducting an exclusive search for a well-established fintech in the payments space for Senior Java Developers to join this growing and dynamic team. The roles are designed to bring in developers who can work independently, solve complex problems, and … building scalable and secure web applications, and participating in the entire software lifecycle—from gathering requirements to deploying solutions. If you are an experienced developer who enjoys working autonomously and is comfortable working in a flexible, remote-first environment, this could be the perfect opportunity for you. The ideal More ❯

Job Description Java Developer – Satellite Systems (Microservices, Agile, Spring Boot) Location: Portsmouth (Hybrid - x3 days per week on-site) 12 month contract Rates - Around £55 per hour (Inside IR35) Are you ready to work on technology that will launch the next generation of satellites? A leading global aerospace … organisation is seeking a skilled Java Developer to join a dynamic 7-person Scrum team, working on a critical software system for a new satellite platform. This is an exciting opportunity to contribute to cutting-edge space technology in a collaborative, agile environment. About the Role: You’ll … throughout the full software development lifecycle, from design through to testing. The role will focus on building high-performance, secure, and scalable microservices using Java and Spring Boot, within a modern CI/CD DevOps setup. Key Responsibilities: Develop high-quality code as part of an Agile Scrum team More ❯

Title: Java Developer Length: 6 months (Remote) Day Rate: £300/350 (Outside IR35) Spinks have partnered up with a long standing consultancy client looking to bring on a Java developer to work client side on project. Key Skills: - Strong Java programming experience - Springboot - CI More ❯

iO Associates is looking for a Java Full Stack software developer, to work for a global pioneer in the aerospace industry, operating in the commercial aircraft, helicopters, defence, and space sectors. You'll play a key role in a cutting-edge satellite mission, developing scalable, distributed systems in … delivery are central to the programme's success. Location: Portmouth, UK Daily rate: up to £55 per hour Inside IR35 Working pattern: Hybrid Requirement: Java Core (8+), Spring Boot, Hibernate RESTful Web Services, Microservices UML/SysML (ideally Enterprise Architect) Agile/Scrum methodology, CI/CD practices GIT … Jira, distributed systems experience Aerospace, defence, or high-assurance systems background (highly preferred) Responsibilities: Develop high-quality, secure code in Java (8+) using Spring Boot and REST APIs Participate in UML-based design and architecture Implement microservices for satellite management systems Contribute to automated testing, sprint planning, and continuous More ❯

iO Associates is looking for a Java Full Stack software developer, to work for a global pioneer in the aerospace industry, operating in the commercial aircraft, helicopters, defence, and space sectors. You'll play a key role in a cutting-edge satellite mission, developing scalable, distributed systems in … delivery are central to the programme's success. Location: Portmouth, UK Daily rate: up to £55 per hour Inside IR35 Working pattern: Hybrid Requirement: Java Core (8+), Spring Boot, Hibernate RESTful Web Services, Microservices UML/SysML (ideally Enterprise Architect) Agile/Scrum methodology, CI/CD practices GIT … Jira, distributed systems experience Aerospace, defence, or high-assurance systems background (highly preferred) Responsibilities: Develop high-quality, secure code in Java (8+) using Spring Boot and REST APIs Participate in UML-based design and architecture Implement microservices for satellite management systems Contribute to automated testing, sprint planning, and continuous More ❯

Full-Stack Developer (HTML, CSS, Deluge, Java, Python) Portsmouth, United Kingdom Posted on 26/03/2025 At DIGITAL SCIENTISTS , we're business growth consultants who help companies thrive by mastering their online presence and digitally transforming their operations. From corporates to SMEs, micro-enterprises, and sole … that help businesses GROW and RUN more effectively. Job Description About the Role: Digital Scientists is looking for a versatile and motivated Full-Stack Developer to join our growing team. You'll work across our four specialist teams- Pixel Perfect (Web Design), AdSpark (Advertising), QuickFireSEO (SEO), and Fusion Flow … CSS , and modern frameworks. Write and maintain custom Deluge scripts to power ZOHO apps and workflows. Develop back-end solutions and API integrations using Java and Python . Collaborate with designers, marketers, and system architects across different teams. Troubleshoot, debug, and optimise code for performance and scalability. Integrate 3rd More ❯