2 Dec 2025 BBBH60191 Senior & Staff Fullstack Engineer - Java/Kotlin £70000.00 -

MCS Group is thrilled to be partnering exclusively with

fast-growing technology company in the energy sector.

They are expanding their Belfast engineering team and are looking for

2 Senior Backend Engineers

to join and hit the ground running. The company builds a

platform connecting businesses with external partners , helping large-scale operations work more efficiently and reliably.

Day-to-day responsibilities:

Design and build scalable backend services powering the platform

Collaborate with Product, Design, and Engineering to deliver new features

Improve processes and enhance team collaboration

Mentor and support other engineers

What you need:

5+ years experience building high-quality, scalable solutions

Proficient in languages such as Kotlin, Java, Scala (also open to strong engineers from Java, Go, Python, Scala, or C# backgrounds eager to cross-train)

SOA/Microservices & CI/CD exposure

Cloud experience (GCP/AWS/Azure)

Comfortable collaborating with remote teams

Quick learner, adaptable with new technologies and tools

What's in it for you:

High-impact role on a growing platform

Flexible, modern ways of working with strong career progression

Competitive package with + 15% bonus, equity, pension, and health cover

25 days annual leave + statutory holidays

Group Critical Illness & Life Cover, Employee Assistance Program

Flexible working, WFH support, and wellness allowanceCollaborative engineering culture focused on learning, mentoring, and growth

To speak in absolute confidence about this opportunity please contact Rachael Walker, IT Recruitment Manager at MCS Group02896935487or click the apply button below.

If this position is not right for you, we have others that are.

Please visit MCS Group www.mcsgroup.jobs to view a wide selection of our current jobs or give us a call028 9023 5456.

All conversations will be treated in the strictest of confidence.

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