1 to 25 of 39 Permanent Java Developer Jobs in Belfast

Citi Belfast, Northern Ireland, United Kingdom Join or sign in to find your next job Join to apply for the Lead Java Developer - VP (Belfast) role at Citi Citi Belfast, Northern Ireland, United Kingdom 1 week ago Be among the first 25 applicants Join to apply for the … Lead Java Developer - VP (Belfast) role at Citi The Account Master Central (AMC) team within Institutional Service Group (ISG) is seeking a core java senior developer to join our engineering team in Belfast, UK. Potential candidates MUST have experience with and are enthusiastic about developing all … areas of middle-tier and back-end system programming. The responsibilities of this position include but are not limited to: writing large scale Java programs in pure core Java to facilitate both batch and real-time processing. All processes will be deployed to Unix/Linux environments; therefore More ❯

Senior Java Developer Award-Winning Digital Agency Belfast Hybrid Up to £60K MCS Group is thrilled to be partnering with a cutting-edge Digital Agency that has been making waves across Belfast and beyond. With deep local roots and a reputation for delivering high-impact solutions, this agency … blends client-focused project work with the excitement of developing their own in-house products. Now, they're looking for a Senior Java Developer to join their talented, close-knit team, someone who's passionate about clean code, collaboration, and building innovative solutions that make a difference. Why … shape the future of their own product suite, you'll be making a real impact. What We're Looking For: Solid commercial experience with Java & Spring Boot Familiarity with AWS and container orchestration tools like Kubernetes Agile mindset with a focus on TDD and CI/CD workflows Excellent More ❯

Social network you want to login/join with: Lead Java Developer – Gaming | Hybrid (London – 3 days on-site) | Up to £95,000 per annum basic salary + Bonus & Benefits James Adams Recruitment has partnered with a fast-growing company at the forefront of the online gaming industry. … Our client is an innovator in the iGaming space, delivering cutting-edge online gaming to a global audience. They are looking for a Lead Java Developer t o play a pivotal role in shaping the architecture and development of their real-time gaming platform. The Role This is … designers, engineers, and product teams to deliver world-class gaming solutions. Key Responsibilities Develop & Lead – Drive the development of scalable, interactive gaming products using Java (11+), Scala & Spring Boot . Microservices & API Design – Design and implement modular microservices architecture with 3-tier API design . Cloud & DevOps – Work within More ❯

Social network you want to login/join with: Java Developer (for DevSecOps team), belfast col-narrow-left Client: RE Partners Location: belfast, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 10.06.2025 Expiry Date: 25.07.2025 col-wide Job Description … We are looking for a skilled Java Developer with DevOps knowledge to join our DevSecOps team. If you're passionate about automation, security, and scalable software development, this role offers the opportunity to build plugins, develop REST APIs, and enhance CI/CD workflows—all while ensuring security … ll Do: ? Develop Gradle/Maven/npm/PyPi plugins for SBOM collection and security scanning ? Build and maintain REST API microservices using Java 17 (and occasionally Go), deploying them on OpenShift/Kubernetes ? Integrate security tools like Snyk, BlackDuck, OWASP DependencyTrack, and Artifactory into our CI/ More ❯

Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 4 Posted: 04.06.2025 Expiry Date: 19.07.2025 col-wide Job Description: Java Developer (Contract) – Fintech Scale-Up | Outside IR35 Location: London (Hybrid – 3 days in office) Duration: 6 months About the Company We’re supporting … people and institutions make the most of their money by simplifying access to high-performing savings products. The Role We’re looking for a Java Developer to join their growing platform team on a 6-month Outside IR35 contract . This is a backend-focused role where you … environment, helping them scale to meet growing demand from financial institutions and end-users alike. Key Responsibilities Develop and maintain scalable backend services using Java Architect and implement service-oriented and event-driven systems Optimise and manage PostgreSQL databases Contribute to light React frontend work when needed Build and More ❯

larger and distributed team - with globally located colleagues for in APAC, EMEA, NAM regions. Key Responsibilities: • Design and develop functional enhancements for middle tier (Java) including introduction of new technologies and best practices • Provide SME support and assist in answering any client queries with Data Analytical and Problem solving … and analysts to understand the operational processes, to help translate the business requirements to technical design, develop solutions and deliver high quality code. • The developer is expected to be a Senior Development Member of the team with strong Java back-end experience as well as having proven ability … solutions who is also ready to step up to the next level and also assume leadership responsibilities. • The candidate will have a strong background Java Spring (Core, Integration, Batch) is a must-have, knowledge of Spring Integration Framework is highly desirable. • Ability to work in a high-pressure environment More ❯

Java/Full Stack Developer - C12 - BELFAST Citi Belfast, Northern Ireland, United Kingdom Join or sign in to find your next job Join to apply for the Java/Full Stack Developer - C12 - BELFAST role at Citi Java/Full Stack Developer - C12 - BELFAST … Citi Belfast, Northern Ireland, United Kingdom 2 days ago Be among the first 25 applicants Join to apply for the Java/Full Stack Developer - C12 - BELFAST role at Citi Java/Full Stack Developer - C12 – BELFAST The overall objective of this role is to contribute … reporting, dashboarding, rules based decision engines, database management and data governance tooling with a primary focus on user experience and outcome based delivery. The Java/Full Stack developer is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems More ❯

About the Role: We are seeking a Senior Java Developer/Lead who could drive technology transformation in the team. This role involves taking ownership of key projects and components throughout the entire Software Development Life Cycle (SDLC). A primary focus will be on design, development & maintenance … of components under Price Master Central systems which would require expertise in Java, Spring, SQL, API development, Kafka, Kubernetes, and Cloud technologies. You will guide & mentor team of engineers, providing technical expertise and direction, and ensure adherence to best practices. A strong understanding of system and enterprise architecture is … adjust priorities quickly as circumstances dictate Demonstrated leadership and project management skills Consistently demonstrates clear and concise written and verbal communication Strong command on Java (Core, JDBC, MT, Collections, I/O), Spring Boot, REST, GraphQL web services Sound understanding of SQL/PL-SQL on Oracle DB Extensive More ❯

Exclusive Ocho partnership- Golang/Java developers Hybrid roles (***New Cloud Security company that recently set up in NI with 16 staff hired earlier in the year ! ) We are currently seeking to appoint a number of Senior Golang AND Java Developers to the team. In this role you … with major cloud platforms (AWS, GCP, Azure) and leverages advanced technologies including Go, Kubernetes, Docker, eBPF, and more. The Role: As a Golang/Java Developer with our client, you'll play a pivotal role in developing and securing their ground breaking products. We're seeking individuals who … understanding of operating system internals, Linux networking, and file systems. 3+ years of experience in software engineering using high-level programming languages (e.g., Golang, Java, C, Python). Proficiency with cloud platforms (AWS, GCP, Azure). Experience building data-intensive systems such as databases, event systems, or messaging systems. More ❯

Social network you want to login/join with: Job Summary: We are actively seeking several Junior and Mid-Level Java Developers to become an integral part of our expanding team based in Belfast. As a Java Developer in our company, you will join a dynamic global … project or program at hand. Apply expertise in automated deployment and DevOps practices as suitable for the role. Technical Skills: Core Development: Proficiency in Java and .NET programming languages. Experience with Spring Boot framework. DevOps and Automation: Familiarity with CI/CD principles and tools. Demonstrable experience with automated … deployment processes. Experience: For Junior Developers: Entry-level with demonstrable knowledge or experience in Java and related technologies. For Mid-Level Developers: 2-4 years of hands-on experience in Java development and a solid understanding of .NET and Spring Boot within a professional setting. Day-to-Day More ❯

Exclusive Ocho partnership- Golang/Java developers Hybrid roles (***New Cloud Security company that recently set up in NI with 16 staff hired earlier in the year ! ) We are currently seeking to appoint a number of Senior Golang AND Java Developers to the team. In this role you … with major cloud platforms (AWS, GCP, Azure) and leverages advanced technologies including Go, Kubernetes, Docker, eBPF, and more. The Role: As a Golang/Java Developer with our client, you'll play a pivotal role in developing and securing their ground breaking products. We're seeking individuals who … understanding of operating system internals, Linux networking, and file systems. 3+ years of experience in software engineering using high-level programming languages (e.g., Golang, Java, C, Python). Proficiency with cloud platforms (AWS, GCP, Azure). Experience building data-intensive systems such as databases, event systems, or messaging systems. More ❯

We are seeking to recruit a Senior Java developer and team lead responsible for building out the firm's strategic reference data platforms used by the Institutional Clients Group in Citi. The successful applicant will take ownership of key projects and components and will be responsible for all … phases of the SDLC including analysis and design, development, testing and deployment. As a senior developer, the candidate will be responsible for providing technical guidance to junior developers, including overseeing their deliverables, provide architectural guidance, enforce Citi best practices, and conduct code reviews. A potential candidate will need to … to satisfy new requirements in terms of performance and scalability Provide level 3 (escalation) support for the application Preferred Skills and Experience: Expertise in Java development, with a strong focus on Spring Boot and REST API architecture Strong experience with Oracle PL/SQL and database performance analysis and More ❯

Java Developer Equity Finance Technology - VP (BELFAST) The Equity Finance Technology team are seeking a software engineer for the Trading technology team Belfast. This role requires strong expertise in Java and the ability to work with traders in building business added value through agile delivery. Responsibilities: Resolve … adjust priorities quickly as circumstances dictate Demonstrated leadership and project management skills Consistently demonstrates clear and concise written and verbal communication Essential Skills: Strong Java Core & Enterprise JMS, TIBCO, Kafka Oracle RDBMS Unix and scripting skills (Bash/PERL) Experience in performing QA Git or equivalent JUnit Desirable: Equity More ❯

Core Java Developer (AVP) Belfast Overview Citi is a world-leading global bank. We have approximately 200 million customer accounts and a presence in more than 160 countries and jurisdictions worldwide. We provide consumers, corporations, governments, and institutions with a broad range of financial products and services, including … second line support, including out of hours, for the processes and components you develop. Key Skills and Experience required Primary development expertise in core Java development, including knowledge of collections, IO, multi-threading and generic You will be a highly motivated self-starter who is comfortable taking on new … will have experience working with build tools such as Gradle and Maven. You will be comfortable working with Linux and be familiar with standard developer tooling, such as Git, BitBucket/GitHub, Jira, Confluence, etc. Bonus points for Experience or Familiarity working on Equities trading platform This job description More ❯

Social network you want to login/join with: Senior Java Analyst Developer/Technical Consultant Quant Capital is urgently looking for a Java Analyst Developer/Technical Consultant to join our high profile client. Our client is a global trading platform software business. Its products More ❯

driven approach, our clients come to us with problems that need genuine thought, intelligence and knowledge. We are looking for a hands-on Senior Java Developer with some architectural experience to join our growing team in Belfast. You will be part of a global dynamic team building in … the prod support on any issues and taking it to logical closure with actions. Design - Develop and implement high-level architecture and design for Java-based applications, ensuring scalability, performance, and security. Documentation - Create comprehensive design documentations, walkthrough the same with the team SMEs , arrive on an option and … and efficient use of resources. Performance Optimization - Identify bottlenecks and optimize application performance through code improvements and architectural changes. Strong hands-on knowledge in Java, Microservices, Kafka Very good knowledge in SQL Very good knowledge of OpenShift, ECS, Docker, Kubernetes Remote Working/Office Presence This hire would need More ❯

set up in NI with 16 staff hired earlier in the year ! ) We are currently seeking to appoint a number of Senior Golang AND Java Developers to the team. In this role you'll tackle complex challenges daily, working on both innovative new solutions and continuous improvement of existing … with major cloud platforms (AWS, GCP, Azure) and leverages advanced technologies including Go, Kubernetes, Docker, eBPF, and more. The Role: As a Golang/Java Developer with our client, you'll play a pivotal role in developing and securing their ground breaking products. We're seeking individuals who … understanding of operating system internals, Linux networking, and file systems. 3+ years of experience in software engineering using high-level programming languages (e.g., Golang, Java, C, Python). Proficiency with cloud platforms (AWS, GCP, Azure). Experience building data-intensive systems such as databases, event systems, or messaging systems. More ❯

Social network you want to login/join with: Senior Full Stack Java Developer, belfast col-narrow-left Client: Location: belfast, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 07.06.2025 Expiry Date: 22.07.2025 col-wide Job Description: Senior Software … standards and solutions such as OAuth2, OpenID Connect, SAML, Google Sign-In, or Facebook Login Proficiency in general-purpose programming languages; strong preference for Java Experience working in cloud-native environments (AWS, Azure, or GCP) Flexibility to work across multiple technology stacks and application domains Why Join: You'll … standards and solutions such as OAuth2, OpenID Connect, SAML, Google Sign-In, or Facebook Login Proficiency in general-purpose programming languages; strong preference for Java Experience working in cloud-native environments (AWS, Azure, or GCP) Flexibility to work across multiple technology stacks and application domains Why Join: You'll More ❯

sector project focused on building secure, high-performance digital services using enterprise-grade microservice architecture. We are currently looking for an Actively SC-cleared Java Developer to join a high-impact team working on a mission-critical government platform. This is a fantastic opportunity to contribute to meaningful More ❯

AWS. API security aspects: Strong knowledge of authentication and identity related technologies and protocols is an advantage – e.g. OIDC, OAuth2 Web technologies and containerisation: Java Spring, Docker, Kubernetes and with a heavy focus on automation and CI/CD practises. Agile software engineering: strong skills and experience building software … function Job function Engineering and Information Technology Industries Telecommunications Referrals increase your chances of interviewing at BT Group by 2x Get notified about new Java Software Engineer jobs in Belfast, Northern Ireland, United Kingdom . Belfast, Northern Ireland, United Kingdom £70,000.00-£100,000.00 2 weeks ago Belfast, Northern … 000.00-£80,000.00 2 weeks ago Belfast, Northern Ireland, United Kingdom 8 hours ago Belfast, Northern Ireland, United Kingdom 3 days ago Senior Java/Python Software Engineer, VP Belfast, Northern Ireland, United Kingdom 1 day ago Belfast, Northern Ireland, United Kingdom 1 week ago Belfast, Northern Ireland, United More ❯

Category: Other - EU work permit required: Yes col-narrow-right Job Views: 1 Posted: 04.06.2025 Expiry Date: 19.07.2025 col-wide Job Description: A Backend Java Microservice Engineer to manage a critical project for one of our biggest clients in banking domain. The Individual should be passionate about technology, experienced … in developing and managing cutting edge technology applications. Technical Skills: · Proficiency in Java, including Java 8 and above. · Experience in designing microservices, developing, and deploying microservices. · Strong knowledge of Spring Boot, Spring Cloud, and other Spring components. · Expertise in building and consuming RESTful microservice · Experience with SQL and More ❯

to be working with an innovative, rapidly scaling technology organisation whose products are used globally across many industries in their search for a Principal Java Developer. The Principal Java Engineer will join an existing, scaling software engineering team to take on responsibility for the a specific function of … role which will encompass development, architecture and the mentoring and coaching of junior software engineers This is a fantastic opportunity for an experienced Principal Java Engineer to join a small, yet hugely successful team headed up an incredibly passionate Head of Engineering. You'll get the chance to work … to scale significantly in 2025 and beyond. The Role: The Principal Engineer will lead the design and architecture of complex, high-scale applications using Java and AWS . Yiu'll set engineering best practices and drive adoption of cloud-native solutions. You'll collaborate with cross-functional teams (interfacing More ❯

We Do/The Team We are a global team responsible for a markets-wide strategic risk management platform. We're looking for skilled Java Developers to enhance our platform and integrate it with trading systems across markets. Role Overview/What You'll Do Collaborate with management to … integrate functions and identify system enhancements. Solve critical issues by evaluating complex business and system processes. Apply your Java expertise and ensure architectural alignment. Develop coding standards for testing, debugging, and implementation. Understand the integration of business areas, architecture, and infrastructure. Analyse problems and create innovative solutions. Mentor junior … developers and analysts. Key Skills and Experience Required Extensive Core Java experience with strong knowledge of data structures, design patterns, and SOLID principles. Experience with messaging systems like Kafka and Solace. Proficiency in Spring framework and cloud technologies (Docker/Kubernetes/OpenShift). Familiarity with Jira, Bitbucket, and More ❯

priorities quickly as circumstances dictate Demonstrated leadership and project management skills Consistently demonstrates clear and concise written and verbal communication Required Skills: Expertise in Java development, with a strong focus on Spring Boot and REST API architecture Strong experience with Oracle PL/SQL and database performance analysis and More ❯

Senior Software Engineer - Belfast (Hybrid) Up to £80,000 + Exceptional Benefits Backend Java Global Impact Flexible Working MCS are delighted to be partnering with a forward-thinking global tech leader. This company is hiring for a Senior Software Engineer to join a highly collaborative engineering team tackling critical … real-time transactional services used by some of the most recognisable global brands. What You'll Be Doing Designing and implementing backend microservices using Java and Spring Boot Building and refining RESTful APIs that power secure, real-time payment flows Writing clean, testable code with a focus on quality … reviews, automated testing, and continuous integration Mentoring Junior Developers What You Bring Extensive experience as a backend or full stack engineer Strong skills in Java and Spring Boot Proven background in scalable microservices architecture and REST APIs Test-driven development mindset with attention to quality and security Experience with More ❯