Senior Full Stack Engineer (Belfast-Hybrid)

MCS Group is delighted to be working with a global fintech market leader as they continue to scale their next-generation platform team with the addition of a Senior Full Stack Engineer.

This is a unique opportunity to join a newly formed, high-performing engineering function building a greenfield platform in partnership with AWS. You'll work on cutting-edge, event-driven systems in a truly global environment, contributing across the full SDLC while mentoring junior engineers and influencing architectural decisions.

The Role:
You'll take ownership of design, development, testing, and deployment of scalable services, driving engineering best practice and contributing to a modern microservices architecture. This role offers strong exposure to AWS-native technologies and the chance to work closely with senior technical stakeholders.

Key Requirements:

5+ years' experience in full stack or backend engineering (TypeScript preferred)Strong experience with React, TypeScript, REST/GraphQL APIsSolid backend development experience (Node.js / C# / Java)Experience with AWS (Lambda, API Gateway, AppSync, Fargate)Microservices, event-driven architecture & messaging systemsStrong database experience (SQL & NoSQL)CI/CD, testing, and Agile delivery experienceDesirable:

Experience in financial systems or regulated environmentsC# / .NET exposureKnowledge of low-latency systemsThis is an excellent opportunity to work on a highly visible platform with real impact, within a collaborative, forward-thinking engineering culture.

To speak in absolute confidence about this opportunity, please send an up to date CV via the link provided or contact Matthew Rainey at

Even if this position is not right for you, we may have others that are. Please visit MCS Group to view a wide selection of our current and exclusive roles

MCS Group is committed to Equality, Diversity, and Inclusion for all, being the first recruitment agency in NI to achieve Bronze Diversity Mark accreditation, if you have a disability which means you require a reasonable adjustment to be considered at any stage of the recruitment process, please contact us and we will endeavour to facilitate the request.

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