Your experience maintaining complex airfield systems translates directly to the responsibilities of an SRE. You understand system modeling, degraded-mode operations, and the importance of procedural compliance to ensure uptime and performance. Focus on learning infrastructure-as-code (e.g., Terraform), containerization (Docker, Kubernetes), and monitoring tools (Prometheus, Grafana).

Your background in ground-to-air radio systems and navigational aids maintenance provides a solid foundation for network engineering. You're familiar with troubleshooting, diagnostics, and maintaining critical communication infrastructure. Develop skills in network protocols (TCP/IP, BGP), routing and switching, and network security.

As an Airfield Systems Superintendent, you oversaw the maintenance and repair of various systems, managed equipment, and ensured compliance with procedures. This experience aligns well with the responsibilities of a systems administrator. To enhance your qualifications, focus on learning Linux system administration, scripting (e.g., Bash, Python), and virtualization technologies (e.g., VMware, KVM).

Your experience with maintaining secure communication systems and troubleshooting complex technical issues gives you a head start in security. You're accustomed to following strict procedures and ensuring system integrity. Learn security fundamentals, including network security, cryptography, and security tools (e.g., Wireshark, Nmap).