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As a digital transformation partner to more than 750 clients, LTM brings extensive domain and technology expertise to help drive superior competitive differentiation, customer experiences, and business outcomes in a converging world. Powered by nearly 90,000 talented and entrepreneurial professionals across more than 30 countries, LTM - a Larsen & Toubro Group company - combines the industry-acclaimed strengths of erstwhile Larsen and Toubro Infotech and Mindtree in solving the most complex business challenges and delivering transformation at scale. For more information, please visit .\nWe are seeking a minimum of 8 years of experience for the position of Network Security Lead BPSS Compliant with strong expertise in enterprise and Campus networking network security cloud networking and Software Defined Networks SDN. The candidate will be responsible for leading network and security operations managing complex enterprise environments driving incident and change management and ensuring compliance with organizational security standards including BPSS controlled environments\nNetwork Security Lead BPSS Compliant\nLondon UK - Hybrid - 2 days a week \nKey Responsibilities \nLead and manage enterprise Network Security Operations across LAN WAN WLAN SDWAN Firewall VPN NAC and Cloud environments\nProvide L3 technical SME support and act as the primary escalation point for critical incidents outages and complex troubleshooting\nAdminister and support Palo Alto FortiGate Cisco FTD and Meraki security platforms including policy management VPNs upgrades and security hardening\nManage and troubleshoot Cisco Nexus Aruba Dell and HP routing and switching infrastructure\nSupport and maintain Wireless Networks using Cisco Aruba and Meraki wireless controllers and access points\nImplement and maintain Network Access Control NAC solutions including Cisco ISE 8021X authentication and MFA integrations\nDesign configure and troubleshoot advanced networking technologies including BGP OSPF EIGRP VXLAN EVPN DMVPN HSRP GLBP VPC and IPsec VPNsDrive Incident Change Problem and Service Request Management processes while ensuring adherence to operational SLAsAssess security vulnerabilities review advisories implement remediation plans and ensure network security complianceLead infrastructure upgrades patching activities and lifecycle management of network and security devicesDevelop operational documentation SOPs KT materials and knowledge repositoriesIdentify and implement automation opportunities using Python PowerShell or other automation tools to improve operational efficiencyMentor and guide network and security engineers providing technical leadership and governanceEnsure compliance with BPSS security requirements access controls audit standards and customer security policiesParticipate in customer 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