Network Infrastructure and Security Engineer Milton Keynes (hybrid considered) Salary: £60,000 + Bonuses + BenefitsWe are seeking a hands-on Network Infrastructure and Security Engineer to support and improve a mix of cloud and on-prem environments. You''ll work across systems, networking, and security, contributing to both operations and design.ResponsibilitiesManage AWS/Azure infrastructureSupport Windows/Linux systems and virtualisation (VMware, Hyper-V, KVM, Proxmox)Maintain networking (firewalls, routing, switching, VPNs)Implement monitoring, logging, and backup solutions (e.g. Zabbix, Graylog, Veeam)Support security tooling (Cloudflare WAF/Zero Trust, vulnerability scanning, patching, PKI)Administer Microsoft 365Produce technical documentation (HLD/LLD)Skills and ExperienceStrong infrastructure background across cloud and on-premExperience with monitoring, logging, and backup toolsKnowledge of networking and security principlesFamiliarity with vulnerability management and VPNsDesirableITIL processesSIEM/EDR tools (e.g. Microsoft Sentinel/Defender)Scripting (PowerShell, Bash, Python)Jira/Confluence, IBM iDue to the volume of applications received for positions, it will not be possible to respond to all applications and only applicants who are considered suitable for interview will be contacted. Proactive Appointments Limited operates as an employment agency and employment business and is an equal opportunities organisationWe take our obligations to protect your personal