It infrastructure & security engineer

Salary: £31,000 - 71,000 per year Requirements: Proven experience in an Infrastructure Engineer, Security Engineer, or advanced 2nd/3rd line IT role Strong knowledge of Microsoft environments including M365, Active Directory, Entra ID, and Group Policy Proficient with endpoint management using Intune MDM and Autopilot deployments Experience supporting cloud environments, with Azure essential and AWS basics advantageous Experience working with RMM tools for monitoring, patching, and automation Good understanding of networking fundamentals including TCP/IP, VPNs, firewalls, DNS, and routing basics Experience supporting firewall platforms such as Palo Alto or similar Familiarity with Cloudflare services including DNS, WAF, CDN, and Zero Trust concepts Experience supporting endpoint and identity security including MFA, Defender, and conditional access Hands-on experience with Windows Server and virtualisation platforms such as Hyper-V or VMware Experience investigating issues using logs and monitoring tools, with a security-first mindset Comfortable using PowerShell for scripting and task automation Experience with patching, system maintenance, and vulnerability remediation Understanding of backup and disaster recovery concepts Familiarity with ITIL environments and structured change processes Strong troubleshooting skills with the ability to work independently and escalate when needed Strong understanding of Windows Clusters Strong understanding of Windows RDP Server Farms Clear communication skills and ability to document work effectively A proactive attitude with a willingness to learn and develop Exposure to security monitoring tools or SOC-style workflows is desirable Experience with Azure security tooling such as Defender for Cloud and Sentinel is desirable Basic Linux administration knowledge is desirable Relevant certifications in Microsoft, CompTIA, AWS, or similar are desirable Responsibilities: Act as a senior escalation point for our Service Desk, supporting complex infrastructure and security issues Provide day-to-day support and maintenance of core IT infrastructure including Windows Server, Active Directory, virtual environments, and business-critical systems Support and maintain security controls across our environment including MFA, VPN, endpoint protection, and access control Investigate and respond to security alerts, incidents, and vulnerabilities, ensuring timely remediation Assist with infrastructure and security projects and support delivery Monitor systems, logs, and alerts to identify issues, risks, and potential threats Perform regular infrastructure health checks, patching, and system updates to maintain stability and security Support firewall, network, and VPN configurations alongside senior engineers where required Assist with user access control, permission structures, and identity management within Microsoft 365, Entra ID, and Active Directory Support and manage endpoint environments using Intune MDM, Windows Autopilot, and RMM Provide support for cloud platforms including Azure and Microsoft 365, alongside basic AWS environments Assist with DNS, CDN, and security services such as Cloudflare Support RMM platforms for monitoring, automation, patching, and remote management of endpoints and servers Create and maintain technical documentation, knowledge base articles, and operational procedures Automate routine tasks and improvements using PowerShell or similar tools where possible Work closely with internal teams and international sites to support IT operations and minimise disruption Technologies: AWS Active Directory Azure Cloud Firewall Hyper-V Support ITIL Linux Microsoft 365 Network PowerShell Security TCP/IP VPN VMware WAF Windows Office 365 More: We are Executive Jet Support Ltd, a world-leading provider of commercial aircraft, engines, and airframe components to almost 300 operators in over 50 countries worldwide. We are a family-based company that values pride in our work, long-term customer relationships, trust, and loyalty. This is a full-time, permanent, on-site role based at Bumpers Farm, Chippenham, Wiltshire, working Monday to Friday. We offer a competitive salary dependent on experience, an annual bonus scheme, life assurance, private healthcare cover, incremental holiday entitlement, an extra paid day off for your birthday, company sick pay, attendance bonus, an employee assistance programme, Perkbox rewards, free weekly fruit, free onsite parking, and staff events. We are looking for a capable and driven IT Infrastructure & Security Engineer to join our growing, dynamic, and professional aviation company. last updated 25 week of 2026