Persistent Systems Jobs in Belfast

MCS Group delighted to be working with an innovative and rapidly growing technology organisation as they look to appoint a Senior Software Developer to join their expanding engineering team in Belfast.This is an excellent opportunity for an experienced engineer who enjoys working across complex systems, influencing technical direction, and building...

Principal Java Engineer - Microservices / Event-Driven ArchitectureAt a GlancePrincipal-level Java engineering role at a high-growth scaleup Event-driven microservices architecture - leading legacy monolith decomposition Flexible / hybrid working Salary: 75-85k Architecture ownership, mentorship, and real engineering leadership from day one About ...

Principal Python Engineer Northern Ireland ( Remote ) Permanent Full-time Engineering The Opportunity Our client builds software that operates at the sharp end of energy markets ,trading platforms, monitoring systems, and optimisation tools running across the UK, Ireland, and Europe. The infrastructure is complex, the data volumes are serious,...

Java Contractor Location: Belfast (Hybrid - 2 days per week onsite)Contract: 6 MonthsStart Date: Immediate (notice periods accommodated) Join a leading global FinTech organisation developing high-performance, scalable applications in Java. We are seeking an experienced Java Contractor with strong hands-on experience in Google Cloud Platform (G...

Every query matters. Every millisecond counts. Every system you build shapes the future of data-driven finance. At Data Intellect , we thrive on solving complex data challenges in high-stakes environments. We're a team of engineers, problem-solvers, and collaborators who believe in pushing boundaries, not egos.If you're a seasoned kdb+ developer re...

Principal Software Architect / Engineering Manager Belfast | Hybrid | Permanent | Competitive + Leadership Bonus This one is different. Most architecture roles are advisory. This one has teeth. Our client is on a genuine platform transformation journey, moving away from complex legacy systems toward a modern, cloud-native architecture,and they n...

Staff .NET Developer / Principal Engineer - Cloud & Platform Architecture At a Glance Principal / Staff-level engineering role leading a full platform transformation Deep .NET / C# stack with modern cloud-native architecture (Azure / AWS) Hybrid working - Belfast city centre office Real ownership over technical direction, this role has teeth Abo...

MCS Group are delighted to be partnering with a high-growth technology business building a modern, data-driven platform that helps large organisations make smarter, faster decisions through real-time insights. With strong backing and ambitious growth plans, the company is establishing a brand-new engineering hub in Belfast as part of its internatio...

Senior Java Developer - Build at Scale, Shape What's NextBelfast | Hybrid | Multiple Roles | Highly Competitive Package ?? Why This Role? If you're a strong Java engineer who wants to do more than just code, this is your opportunity to work on some of the most complex, high-impact technology programmes in the UK & Ireland. You'll be joining a fast-...

MCS Group delighted to be working with an innovative and rapidly growing technology organisation as they look to appoint a Senior Software Developer to join their expanding engineering team in Belfast. This is an excellent opportunity for an experienced engineer who enjoys working across complex systems, influencing technical direction, and buildin...