Senior/Principal Fullstack Engineer

MCS Group; Belfast; Hybrid; GBP 55,000 - 75,000; Full time

Job summary

A global software company in Belfast is seeking a Senior Software Engineer to join their Cloud Platform team. The role involves designing and building features for a large-scale SaaS platform, enhancing CI/CD pipelines, and utilizing AI-assisted tools. Candidates should have strong Java and modern JavaScript skills, experience in cloud infrastructure, and the ability to work across the stack. This hybrid position offers a collaborative engineering culture with opportunities for growth and great benefits.

Benefits

Flexible work setup

Collaborative culture

Growth opportunities

Qualifications

• Experience in software development, preferably in SaaS or cloud environments.
• Strong skills in Java and modern JavaScript frameworks like React or TypeScript.
• Experience with cloud infrastructure and containerisation.
• Comfortable working across the stack and taking ownership of delivery.

Responsibilities

• Design and build new features for a large-scale SaaS platform.
• Enhance CI/CD pipelines and automate delivery to production.
• Use AI-assisted tools to boost productivity and innovation.
• Participate in code reviews and mentor other engineers.

Skills

Software development

Java

Modern JavaScript frameworks (React/TypeScript)

Cloud infrastructure

Containerisation

Tools

Java

Spring Boot

React

Python

Kubernetes

Terraform

Jenkins

AWS

SQL

Job description

Senior/Principal Software Engineer - Cloud Platform (Hybrid, Belfast)

We’re partnered with a global software company seeking a Senior Software Engineer to join their Cloud Platform team in Belfast. You’ll be part of a group driving transformation across the manufacturing and engineering sector through cutting‑edge cloud solutions.

What you’ll be doing:

• Designing and building new features for a large‑scale SaaS platform
• Enhancing CI/CD pipelines and automating delivery to production
• Using AI‑assisted tools to boost productivity and innovation
• Participating in code reviews and mentoring other engineers

Tech environment: Java, Spring Boot, React, Python, Kubernetes, Terraform, Jenkins, AWS, SQL

About you:

• experience in software development (SaaS or cloud environments)
• Strong skills in Java and modern JavaScript frameworks (React/TypeScript)
• Experience with cloud infrastructure and containerisation
• Comfortable working across the stack and taking ownership of delivery

Why apply?
You'll join a collaborative, forward‑thinking engineering culture with room to grow, great benefits, and a flexible hybrid setup in Belfast.

To speak in absolute confidence about this opportunity please send an up‑to‑date CV via the link provided or contact Senior Recruitment Consultant Ryan Archer at MCS Group on 028 904 90859 or [e-mail].

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 jobs.