Job Description

We are looking for an IT Security Engineer, with strong experience in designing, implementing, and maintaining existing security systems. You will be working on both online and air gapped networks and should have a strong knowledge of Windows and Linux operating systems and have an in-depth knowledge of network security design and operation. This is a technical role which requires the candidate to be confident in implementation of systems from the ground up, and their on-going maintenance.

As part of a small team, you will work closely with the IT systems engineers and our security consultants to suggest and roll out configurations across our infrastructure, and on occasion be required to support the systems engineers in their role. Security is a key priority for First Light Fusion and this role will be ideal for those looking to implement creative and robust ideas to a multi-layered function.

Responsibilities will include
  • Vulnerability scanning
  • Penetration testing
  • Monitoring and logging
  • Patch management
  • Antivirus/malware
  • Hardware and software firewall configuration
  • Network access control
  • Running phishing exercises


  • Degree in Cyber Security, Computer Science, or similar
  • In depth understanding of both Windows and Linux security
  • In depth knowledge of network infrastructure security
  • Understanding of current threat environment and attack vectors
  • Understanding of multi-layered security approach and how each system interacts
  • Fast and effective problem-solving skills and a methodical approach to work
  • Strong communication and interpersonal skills


  • Prior work on air-gapped networks
  • Experience in vulnerability scanning software. Training in the specific software used at First Light (Nessus Vulnerability Scanner) can provided if necessary
  • Experience of Cyber Essentials Plus certification
  • Education and training of end users
  • Knowledge of ISO 27001 framework
  • Creation of procedural documentation
  • Experience of Laboratory equipment, e.g. Oscilloscopes, High Speed Cameras, and Embedded Systems/FPGA