end java developer jobs in Newtownabbey

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...

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....

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.

Position: Front End JavaScript Developer Reports to: Front End Development Team Lead Hours: 40 hours Location: 3 days in North London office (Monday – Wednesday) Salary: £60 - £80,000 + eligibility for performance bonus Start date: ASAP Purpose of the role: As a Front End Developer you will join one of our multinational Scrum teams to create state-of-the-art software solutions. In all...

About Aero Learn more about the general tasks related to this opportunity below, as well as required skills. A digital experience company, we sit at the intersection of insights, creativity and technology, crafting digital experiences that transform business performance. We're a small, fully remote team with big ambitions. We work hands-on with our clients, giving our teams genuine ownership...

Business Development Assistant – Join Our Growing Consultancy! Location: Greater Belfast - Hybrid: 1 day per week from home, occasional travel to visit clients Hours: Monday to Friday, 9am – 5pm Salary: Competitive, plus performance-based incentives We are a growing consultancy dedicated to helping organisations become stronger, safer, and more sustainable. We are looking for a proactive and...

You will be working closely with developers and QA to design, build, and maintain automated test solutions in a modern engineering environment.

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...

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...

MCS Group is delighted to be partnering with a global software company that is driving innovation within the manufacturing technology space. This business is on an exciting journey of modernising its legacy product portfolio and expanding its best-in-class automation solutions - and they are now seeking an experienced Senior Software Engineer (Tech Lead) to join their growing team. ?? Location:...

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...

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...

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.

You will be working closely with developers and QA to design, build, and maintain automated test solutions in a modern engineering environment.

You will have the opportunity to gain exposure in a forward-thinking technology company delivering platforms in a complex, data-driven domain Experience working with Playwright / Rest Assured would be beneficial but not essential.

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...

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 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.

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...

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.