Field Service Engineer (Defence / Secure Environments) Location: Woking (with some travel) Salary: Competitive benefits Were looking for a Field Service Engineer to support and maintain advanced technical systems across secure and defence environments in the UK and internationally. This is a hands-on role working at the forefront of complex systems, combining elements of IT infrastructure, networking, and electronic warfare technology. The Role Youll play a key role in delivering high-quality technical support to customers, both on-site and remotely. This will include maintaining, repairing, and upgrading systems, supporting live environments, and ensuring equipment performs reliably in critical scenarios. Key Responsibilities Carry out on-site maintenance, upgrades, and repairs of complex systems Support customer environments during exercises, trials, and deployments Provide 1st/2nd line remote support for technical issues Install, configure, and maintain IT infrastructure (Windows Server, virtualisation, networks) Diagnose faults and perform root cause analysis on hardware and systems Support system acceptance, testing, and training activities Participate in an on-call rota for urgent support requirements What Were Looking For Experience supporting technical systems in defence or secure environments Background in electronic warfare, RF systems, or similar technologies Strong understanding of IT infrastructure (servers, networks, virtualisation) Experience working with Windows/Linux environments Knowledge of LAN/WAN/VLAN networking and firewalls Ability to troubleshoot complex systems and perform hardware diagnostics Awareness of working in highly regulated, safety-critical environments Desirable Military background (e.g. signals, communications, EW) Knowledge of cryptographic systems Experience with MoD environments and processes Other Requirements Full UK driving licence Willingness to travel on occasion Eligibility for DV clearance (UK nationals only) Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients. If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.