Core Technical Jobs in Belfast

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,...

Senior C++ Software EngineerStaff-level individual C++ contributor with a clear path to technical leadership C++ server-side engineering handling global transaction volumes Hybrid working with genuine flexibility to work from home 35 days holiday, private medical, pension matched to 5%, and more An engineering-led environment, free of bureaucracy, ...

Senior Java Developer | Belfast | £65,000-£80,000Senior back-end developer role within a newly established Belfast trading technology hub Java-focused; real-time exchange connectivity, event-driven architecture, distributed systems Small founding team of 4 engineers; site lead already in place (placed by Ocho) £65,000-£80,000 | Belfast based Ground...

Senior TypeScript Engineer Belfast | 3 Days Onsite At a Glance Senior-level full stack, frontend, or backend TypeScript engineer (5+ years) React, Node.js, AWS serverless stack 3 days onsite in Belfast Building the unified platform that powers a major global financial institution's core broker revenue Who You'll Work For One of the world's larg...

Senior Frontend Engineer - TypeScript / React / AWS At a Glance Senior Frontend Engineer role on a modern, cloud-native product platform TypeScript / React ecosystem with AWS integration and serverless architecture Hybrid working - Belfast Real ownership of UI architecture, not just shipping screens About the Company Our client is a fast-moving...

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...

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...

Full Stack Python Developer Join during an exciting period of expansion, where your contribution will help influence the future direction of the platform and wider engineering team. Belfast (Hybrid) Permanent The Opportunity A leading organisation experiencing significant growth across Northern Ireland and the UK, with major investment underway...

Staff Software Engineer with C++ Location: Belfast | Hybrid At a Glance Staff-level C++ engineering role focused on high-level, object-oriented development rather than low-level systems programming Design and development of a high-volume payment processing gateway Technical leadership: mentoring, driving best practice, shaping the roadmap Coll...

Senior Python Developer needed to join the worlds newest IoT company Are you a Senior/Principal level Python developer looking for a new challenge? Do you want to work with some of the brightest minds in Northern Ireland? Want to work on true greenfield projects that nobody has done before? The Role In this hands on role, you'll be joining...