Overview
Principal / Staff Java Developer - (Cybersecurity)
The Ocho Exclusive opportunity for a Principal Java Developer to play a foundational role in a greenfield backend team at a fast-scaling, cloud-first business. Joining a new backend function, with the chance to set the tone for engineering standards, own key parts of the architecture, and mentor incoming talent as the team scales. You'll bring deep experience in Core Java and cloud systems, and use it to lead by example, from system design through to hands-on coding and mentoring.
Responsibilities
* Designing and delivering complex backend services using Java / Spring Boot
* Supporting architectural decisions, scaling discussions and performance tuning
* Collaborating closely with the technical lead to define best practices
* Mentoring developers, conducting code reviews, and supporting onboarding as the team grows
* Building services that scale in cloud-native environments (AWS) using modern DevOps practices
Essential Experience
* 5-10 years of experience in backend engineering roles
* Proven track record of building scalable services in Java (preferably 11+)
* Hands-on experience with microservices architecture, REST APIs, and message queues (Kafka, SQS or similar)
* Deep understanding of AWS and how to build with cloud in mind (ECS, Lambda, CloudWatch, etc.)
* Experience with CI/CD, Docker, and ideally Kubernetes
Bonus points for
* Experience in security, infrastructure or SaaS product environments
* Comfortable with ownership, ambiguity and early-stage team environments
What\'s on offer?
* Salary up to £110k
* Hybrid working (Belfast office)
* Industry-leading benefits package
To apply, connect with Neill Ferguson on LinkedIn or submit your CV via the link below.
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