Senior Java jobs in Belfast

Requirements Must have: - Strong commercial experience developing backend systems using Java (Spring Boot or similar frameworks) - Proven experience building distributed systems and microservices architectures - Experience designing and implementing event-driven architectures using messaging or stre

*Company Description** We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our teams of interdisciplinary experts combine innovative thinking and breakthrough technologies to progress furth

About Engineering Excellence (EE) Engineering Excellence (EE) enables Citi engineers to do their best work by providing modern tools, platforms, and practices that enhance productivity, technical capability, and cross‑team collaboration. EE partners closely with the CTO organization to deliver peopl

Prinacple Full stack Remote (Anywhere in NI) Excellent Salary bonus and package Join a pioneering leader in sustainable energy management, recognised globally for their innovative IoT solutions. This award-winning, cloud-based IoT technology provider is redefining smart automation across industries,

Requirements Must have: - Strong experience designing and building distributed, event-driven, cloud-native systems - Expertise in .NET technologies (.NET Framework and .NET Core) using C# - Strong API development experience (REST, GraphQL) - Solid experience with relational databases (SQL Server, My

Requirements Must have: - Demonstrated and proven experience as a senior QA automation engineer. - Hands-on experience with UI automation tools (Selenium, Cypress, Playwright, TestComplete). - Proficient in Java, JavaScript, or similar scripting languages. - Strong experience designing and maintaini

Requirements Must have: - 10+ years in software engineering with deep experience across .NET and distributed systems - Proven leadership as an Engineering Manager, Architect, Principal Engineer, or Site Lead - Track record modernizing enterprise systems from Web Forms to modular monoliths or microse

WHO WE ARE Apex Fintech Solutions (Apex) powers innovation and the future of digital wealth management by building tech-forward solutions that help simplify, automate, and facilitate access to financial markets for all. Our robust suite of fintech software enables us to support clients such as Stash

Requirements Must have: - Proven track record of building and managing high-performing, cross-functional engineering teams in an Agile environment. - Extensive experience designing, developing, and maintaining distributed, event-driven, cloud-native systems. - Expert-level proficiency in .NET Framew

Requirements Must have: - A proven track record delivering complex features across both backend and frontend. - Strong professional experience with React including component architecture and state management. - Solid backend engineering experience using a modern language and framework. - Experience

At OpenNMS, a wholly owned subsidiary of NantHealth, we are looking for the best people who share our deep passion for collaboration and innovation, and our commitment to open source. OpenNMS is the world’s first fully open source enterprise-grade network service monitoring platform, and hundreds of

Job Summary: Job Description : Who Are We At Wellington IT? At Wellington IT we provide the most successful range of Credit Union software in Northern Ireland/Ireland, currently moving billions each year and managing funds for more than 1 in 4 people. Our customers use our software to power every as

WHO WE ARE Apex Fintech Solutions (Apex) powers innovation and the future of digital wealth management by building tech-forward solutions that help simplify, automate, and facilitate access to financial markets for all. Our robust suite of fintech software enables us to support clients such as Stash

At Allstate, great things happen when our people work together to protect families and their belongings from life’s uncertainties. And for more than 90 years, our innovative drive has kept us a step ahead of our customers’ evolving needs. From advocating for seat belts, air bags and graduated drivin

At Allstate, great things happen when our people work together to protect families and their belongings from life’s uncertainties. And for more than 90 years, our innovative drive has kept us a step ahead of our customers’ evolving needs. From advocating for seat belts, air bags and graduated drivin

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 Overview Engi

Role-Senior Engineer in Production Management Mode-Hybrid-3 Days from Belfast, UK Salary- GBP 70k/Annum Permanent/FTE Mandatory Skills : Application Security (application security framework/ threat modelling/ Secure SDLC/ DevSecOps/Application Security Architecture Review), Java, Java Microservices,

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 Overview Engi

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About ISx4 ISx4 is a dynamic and innovative team, we harness the power of artificial intelligence and cloud computing to drive real-world impact. We work at the forefront of AI technology, leveraging leading cloud platforms to build scalable, intelligent solutions. We provide Insight through Strateg