Principal Java Engineer - Hybrid (South Belfast) | £90k-£95k

Join a leading global security company building scalable, resilient platforms used by enterprise clients worldwide. We're expanding our Belfast engineering hub and seeking a Principal Java Engineer to take ownership of complex distributed systems, drive architectural direction, and mentor high-performing teams.

This is a hybrid role based in South Belfast, with two days per week onsite, offering the chance to be part of a collaborative engineering culture while retaining flexibility.

What you'll be doing

• Leading the design and delivery of large-scale, cloud-native systems using Java and Spring Boot

• Defining technical architecture and influencing long-term engineering strategy

• Building and optimising high-performance microservices deployed on Kubernetes (EKS)

• Designing and implementing CI/CD pipelines, deployment automation, and observability practices

• Mentoring engineers, shaping hiring decisions, and raising the technical bar across the team

• Collaborating closely with product and InfoSec teams to deliver secure, customer-focused solutions

What we're looking for

• Extensive commercial experience as a Principal / Lead Java Engineer

• Expertise with Java 17+ (ideally Java 21), Spring Boot, and modern distributed systems design

• Strong track record delivering microservice architectures on Kubernetes and AWS

• Hands-on experience with CI/CD, automation, monitoring, and cost-optimisation at scale

• Background in mentoring and leading engineering teams within agile environments

• Previous exposure to security, fintech, or other high-throughput systems a plus

What's on offer

• Salary £90k-£95k depending on experience

• Hybrid working with 2 days onsite in South Belfast

• Opportunity to shape technical direction in a high-impact security platform

• Collaborative engineering culture with strong career progression pathways

Apply here or reach out to Aaron Somers at Ocho for more information via LinkedIn.