Overview

Senior Backend Engineer (Java) - Belfast - Hybrid role, 3 days per week in the Belfast office.

Salary: Attractive base + stock + market leading benefits.

About the Company

Our client is a rapidly scaling SaaS operating in the cloud security space. They are expanding their engineering function and hiring through the Belfast office to collaborate with international teams. This is a high-impact role where you will contribute to the development of core platform features while mentoring others and influencing architectural direction.

The Role

We are seeking a Senior Backend Engineer (Java) to join the team. You will be responsible for designing and delivering complex backend functionality, mentoring and onboarding new developers, and supporting technical leadership with architecture and design decisions. This role offers the opportunity to take real ownership of key areas within a cutting-edge product.

Key Responsibilities

• Mentor and onboard developers, conduct code reviews, and support knowledge sharing
• Design, implement, and optimise backend features using Java (Spring Boot)
• Work with microservices and distributed systems to ensure scalability and reliability
• Support the team lead with technical decision-making and architecture discussions
• Collaborate with cross-functional teams to deliver high-quality solutions

Essential Criteria

• 5-10 years' backend engineering experience
• Strong Java (Spring Boot) expertise and microservices experience
• Solid knowledge of HTTP, REST APIs, and message queues
• Hands-on cloud experience with AWS (critical requirement)
• Self-starter with strong ownership and accountability

Desired Criteria

• Understanding of DevOps practices (CI/CD pipelines, Kubernetes)
• Experience in SaaS or cloud security companies
• Low-level technical depth and ability to troubleshoot complex systems

Why Join

• Opportunity to take ownership in a high-impact backend engineering role
• Work with a scaling SaaS company at the forefront of cloud security
• Competitive salary and benefits package
• Hybrid/remote flexibility via Belfast office with strong integration into global teams
• Culture of autonomy, collaboration, and technical excellence

How to Apply

If you believe you meet the criteria for this role and are excited about the opportunity to join our client, please apply via the provided link. Alternatively, you can reach out for an informal chat via LinkedIn or WhatsApp.