6 of 6 Legacy Systems Jobs in Northern Ireland

Software Engineer II - Payment Systems Location: 100% Remote (Ireland or UK) Salary: £/€ 60-70K We're partnering with a leading payments company to help grow their engineering team with a key hire - a Software Engineer II who can contribute to the design and build of modern backend services and customer-facing portals. This is a hands-on … focused on solving real-world challenges in the payments space. It's essential that you bring commercial experience in the payments domain, with a strong understanding of how payment systems operate - authorisation flows, settlement, compliance, and security are all part of your toolkit. What you'll be working on: Building and enhancing backend services and platform tooling used across … a global payment infrastructure Contributing to projects ranging from greenfield builds to modernising legacy systems Working with modern software techniques including BDD and CI/CD Collaborating with product and platform teams to solve real customer problems Supporting deployments across test and production environments What you'll bring: 3-5 years' experience in a software engineering role More ❯

Stack Developer to join their small, agile development team. This is a fantastic opportunity to work in a fast-paced environment where your input genuinely shapes both internal business systems and innovative new product development. You will have the opportunity to work on a Greenfield project later on in the year too! This is a hands-on development role … stakeholders to translate business requirements into technical solutions. Mentor and guide junior developers through code reviews and best practices. Play a key role in architectural decisions and modernising legacy systems. Ideal Candidate Profile 4+ years' commercial experience in full-stack software development. Strong proficiency in C#/.NET (Core and/or Framework), MS SQL, and Angular (or … and containerisation via Docker. Familiarity with AWS ECS, CI/CD pipelines, and Git-based workflows. Comfortable building and consuming RESTful APIs. Proven ability to refactor and modernise legacy codebases responsibly. What's on Offer A supportive, close-knit engineering team Real ownership of work and the ability to influence tech stack and architecture Hybrid working model with More ❯

contract (6 months with the view to extension). Excellent hourly rate - £13.54 ph + benefits. The Role To support the migration of payroll data from an existing legacy system to a new HR and payroll platform. This is a project role requiring advanced Excel skills and strong analytical capabilities. The successful candidate will work closely with the … after migration to iTrent. Assist in system testing and validation exercises to ensure accurate functionality of the new platform. Collaborate with payroll colleagues to clarify data inconsistencies or legacy system queries. Maintain clear audit trails and documentation of migration processes. Support knowledge transfer and participate in user training and handover procedures as required. The Person: Demonstrated experience in More ❯

23.65 ph + benefits. The Role: As Finance Business Partner, you will be supporting the organisation on a project basis as they migrate the finance function from a legacy system to the new platform, and as such, previous system migration experience would be desirable. The role will include: Financial & Resource Management: providing a complete financial management service across … as required. Continuous Improvement: Support the organisations drive for continuous improvement through data led insights and information. System Implementation : Support the finance function with the migration from their legacy system to the new tech platform. This role would suit an experienced … Finance professional (with CCAB recognised qualifications), with previous experience in producing comprehensive management accounting and analysis to senior management, coupled with strong excel skills. Previous project based experience of systems migration would be highly desirable. To discuss the role in confidence, contact Meghan Hamilton on or email your CV via the link below. MCS Group are an equal opportunities More ❯

What You'll Be Doing: Creating modern web interfaces using React and TypeScript Translating design mockups into production-ready code Enhancing and maintaining legacy UIs while modernising systems Collaborating with UX designers and back-end engineers to build flows Integrating APIs and ensuring robust front-end testing Contributing to UX decisions with a user-first mindset About More ❯

What You'll Be Doing: Creating modern web interfaces using React and TypeScript Translating design mockups into production-ready code Enhancing and maintaining legacy UIs while modernising systems Collaborating with UX designers and back-end engineers to build flows Integrating APIs and ensuring robust front-end testing Contributing to UX decisions with a user-first mindset About More ❯