java software developer jobs in Newtownabbey

MCS Group is thrilled to be partnering exclusively with fast-growing technology company in the energy sector. They are expanding their Belfast engineering team and are looking for a Staff Software Engineer to join and hit the ground running. The company builds a platform connecting businesses with external partners, helping large-scale operations work more efficiently and reliably. Day-to-day...

Job description. Senior Software Engineer - Java Location: Belfast / Hybrid Eligibility: UK work authorisation required This role sits within a global technology business building large-scale platforms used by millions of people every day. You'll join a highly capable engineering team working on complex, high-throughput systems where reliability, performance, and clean design really matter. As a...

Role Overview We are seeking a Java Software Engineer to join a small, technically rigorous founding team building complex, data-intensive engineering systems. The role is remote-first, with periodic in-person collaboration in Oxford or San Francisco. The position involves close collaboration with the Founding Engineer on backend infrastructure, internal platforms, and system architecture. In...

I'm looking for a talented Software Engineer to join a growing engineering team and help build scalable, cloud-native applications. You’ll work across the full development lifecycle, designing and delivering high-quality solutions using Java, TypeScript, and AWS in a modern, agile environment. What You’ll Do - Design, develop, and maintain backend services using Java and cloud-native...

Software Engineer Location: Belfast, Northern Ireland (Hybrid) Compensation: Open to discussion on compensation based on experience + equity About Opinly At Opinly, we're revolutionizing competitor analysis and SEO automation for digital marketers. Our mission is to empower businesses to stay ahead in the competitive landscape through data-driven decisions. You can learn more about us at...

You should have hands-on experience with version control systems, CI/CD pipelines, testing frameworks, and possess a flexible mindset to adapt to evolving project requirements. Key Responsibilities: - Design, develop, and maintain web applications primarily using C#, ensuring alignment with financial industry standards and requirements.

Principal Developer - Belfast | Hybrid | Public & Private Sector Projects Join a leading technology solutions provider delivering complex case management and bespoke applications for government and private clients. I am working with my client to hire a Principal Developer to lead technical design and delivery of cloud-based software solutions. This is a key leadership role where you'll set...

MCS Group is working exclusively with a high-growth software company with deep roots in Belfast. We're seeking a Senior Software Engineer with strong expertise in Java to join a growing team within their engineering function in Belfast. As a Senior Java Developer, you'll be part of a group driving transformation across some pretty unique industries, helping global brands through the creation of...

You will collaborate with highly capable engineers across Belfast and the wider global engineering organisation, contributing to large scale distributed systems while helping shape engineering standards and best practices.

Principal Java Developer - Fully Remote The Opportunity Ocho is partnering with a fast-growing, product-led fintech that's building out a brand-new Development Centre from the ground up to deliver an innovative Greenfield payments platform. As a Principal Java Developer, you'll be hands-on in designing and developing backend, service, and portal systems that power secure, scalable payment...

MCS Group is delighted to be working with a global financial technology organisation as they expand their engineering team in Belfast with the addition of a Full-Stack Java Engineer This is an opportunity to join a highly regarded technology function within a large, established financial services environment, building robust, high-performance systems used by clients across international markets....

Senior Java Developer - 100% remote. * Salary: up to £70k + bonus+ benefits. About the Company: Our client is a global technology company operating in the payments space. They're investing heavily in their engineering capability across Northern Ireland, with a focus on building modern, scalable platforms that support businesses in managing and growing their operations. Their engineering teams...

You will work closely with Senior, Staff and Principal Engineers across Belfast and the wider global engineering organisation, contributing to large scale distributed systems while acting as a technical authority within the team. This role offers a strong mix of hands-on development, architectural decision making and mentorship.

You will work on platforms that demand reliability, performance and resilience, where software quality genuinely matters.

You will be involved in system design and architecture, as well as the hands on delivery of tools, reports and data feeds that enable the business to operate effectively.

About the Company: Our client is a fast-growing global trading firm with deep expertise across traditional and digital asset markets. Built by technologists and financial engineers, their platforms are designed for scale, resiliency, and high performance. They are now establishing a new engineering hub in Belfast as part of a long-term investment to build core trading systems and infrastructure...

Mid-Level Software Engineer (Java) Exciting new FDI About the Company: Our client is a global leader in digital asset innovation, building technology that bridges traditional finance and the emerging crypto economy. Their mission is to create trusted, high-performance systems that enable institutions to seamlessly integrate digital assets into their portfolios and operations. As part of their...

Principal Java Developers - Fintech The Opportunity Ocho is partnering with a fast-growing, product-led client, building out a brand-new Development team from scratch for an exciting Greenfield project. This is a hands-on role focused on designing, building, and scaling modern backend systems in a fully remote environment. Why Join? * You'll contribute to shaping the future of their product range...

About the Company: Our client is a fast growing global trading firm building a brand new engineering hub in Belfast in 2026. Founded by a team of technologists and financial experts, the company develops advanced trading platforms and enterprise systems that operate at scale, supporting a wide range of strategies and asset classes. Having successfully navigated multiple market cycles, they're now...

Principal Java Engineer - NI 100% remote * Salary: up to £100k + bonus+ benefits About the Company: Our client is a leading global payments business with a strong engineering presence in Northern Ireland. Their mission is to radically and responsibly deliver value to merchants by building a next-gen, merchant-first ecosystem. With a product-centric culture and a focus on technical excellence,...

You will work on site three days per week alongside experienced engineers, with two days remote to allow for uninterrupted delivery.