Are you a Senior Backend Engineer who specialises in either Java or Go and enjoys building high-performance, security-focused systems at scale?

My client is a fast-growing organisation in the cybersecurity space, developing advanced platforms to detect, prevent, and respond to modern threats in real time. They are looking for a Senior Engineer with deep expertise in either Java or Go to join a high-impact backend team.

The Role

This role is focused on building and scaling core backend services that underpin security-critical applications. You will work on highly concurrent, distributed systems where performance, resilience, and security are paramount.

Whether your strength is in Java (Spring, JVM ecosystem) or Go (Golang, high-concurrency services), you will have the opportunity to work within a team that values clean design, efficiency, and engineering excellence.

What You’ll Be Doing

• Designing and building scalable backend services using Java or Go
• Developing high-throughput, low-latency systems in a distributed environment
• Working on real-time data pipelines and event-driven architectures
• Contributing to system design, architecture, and performance optimisation
• Writing clean, maintainable, and well-tested code
• Collaborating with security and infrastructure teams to build robust, secure systems
• Mentoring engineers and contributing to best practices

What We’re Looking For

• Strong commercial experience in either Java or Go (Golang)

• Deep understanding of backend engineering principles and system design

• Experience building distributed systems at scale

• Strong knowledge of:

  • Concurrency and performance optimisation
  • APIs (REST/gRPC)
  • Microservices architecture

• Experience with cloud platforms (AWS, GCP, or Azure)

• Familiarity with Docker and Kubernetes

• Experience in cybersecurity, fintech, or other high-security environments is a plus

Nice to Have

• Experience with low-latency or real-time processing systems
• Knowledge of security protocols, encryption, or threat detection systems
• Experience with Kafka or other streaming technologies
• Exposure to DevSecOps or secure development practices

Why Join?

• Work on cutting-edge cybersecurity products with real-world impact
• Join a strong, engineering-led team with a focus on quality and performance
• Opportunity to shape system architecture and technical direction
• Competitive salary and benefits
• Flexible or remote working options

Interested?

If you have any further questions on the role, please feel free to reach out to Brendan McCrory directly.

Benefits:
Work From Home