Job Title

AtKeolisAmey Docklands (KAD) , we operate the iconic Docklands Light Railway (DLR), delivering service excellence in one of London's most critical transport systems. We are now looking for a skilledOperational Technology (OT) Network Engineerto join our team and help maintain a secure and resilient OT network infrastructure that supports safe and efficient rail operations.As anOT Network Engineer , you will play a key role in maintaining, developing, and optimising KAD's OT network systems. This involves working with cutting-edge networking and virtualisation technologies in a safety-critical railway environment. You'll collaborate with IT, OT, security teams, external suppliers, and Transport for London to ensure seamless OT system performance and cybersecurity compliance.What You'll DoDeploy and maintainCisco Nexus switches, OT firewalls, Juniper internet firewalls, and Dell servers . ManageVMware ESXi environmentsandStorMagic SvSAN storage solutions . Oversee OT network segmentation, VLAN and subnet management, firewall rules, and security zoning following thePurdue model . AdministerActive Directory, DNS, DHCP, SIEM, Cisco ISE, SolarWinds, and Splunk . Supportremote access, VPNs, endpoint security , and manage dual ISP circuits at depot locations. Implement and maintaincybersecurity best practicesincluding system hardening, antivirus, patch management, and compliance with standards such asIEC 62443 and ISO27001 . Provide technical support for systems includingCCTV servers, CIS/ASC workstations, AIMS, and OTMR log management . Participate inFactory Acceptance Tests (FAT)andSite Acceptance Tests (SAT)to ensure system integrity pre-deployment. Document technical processes, conduct system audits, and support incident response activities. What You'll NeedEssential Skills & Experience:• Bachelor's degree inNetwork Engineering, IT, or related field • Minimum5-7 years' experiencein network engineering, ideally in OT/ICS environmentsHands-on experiencewith: Cisco Networking Firewalls (Cisco/Juniper) Windows Server (AD, NPS, WSUS) & Red Hat Linux VMware Virtualisation & Dell Servers • Strong knowledge ofIP networking, VLANs, VPNs, routing, and network security • Experience innetwork hardening and cybersecurity best practices • Excellentproblem-solving skillsand attention to detail Desirable (but not essential): Certifications such asCCNP, CCIE, JNCIS/JNCIP, VCP Experience withnetwork monitoring and security tools(SolarWinds, Splunk, SIEM) Understanding ofrailway, transport, or safety-critical environments Familiarity withEMC standards and OT system lifecycle management What We OfferAs part of theTransport for London (TfL) family , KAD provides competitive benefits including: Free travelacross TfL for you and a household member 75% discounton National Rail season tickets Interest-free season ticket loan Up to10% employer pension contribution Access toPerkbox , private GP services viaDoctor Care Anywhere , and anEmployee Assistance Programme Commitment to your professional growth in a dynamic, collaborative environment Join UsAt KAD, we value diversity and inclusion, recognising that varied perspectives drive innovation. We welcome applicants from all backgrounds.Please read the full job description before applyingand ensure yourCV and cover letter clearly align to the essential criteria .Closing Date:3rd August 2025 #J-18808-Ljbffr