Sony - Lead Network Engineer

Duration : 12 - Month Contract

Role Purpose :

The Network Lead will be responsible for technical, operational governance and service availability of the enterprise network environment covering LAN, WAN, Wi-Fi, firewalls, internet/network links, Zscaler Proxy/VPN, load balancers and associated network services.

The role will act as the key technical escalation point across L1/L2/L3 teams, ISPs, OEMs and service partners.

Key Responsibilities :

- Network Operations : Lead partner team responsible for monitoring, management and troubleshooting of enterprise LAN, WAN, Wi-Fi, routers, switches, firewalls, WLCs, access points and network links, ensuring availability and performance.

- Check Point Firewall : Strong understanding of firewall administration, security policies/rules, upgrades, configuration backups, maintenance and troubleshooting.

- F5 & Radware Load Balancers : Good working understanding of F5 and Radware load-balancing environments, supporting operational troubleshooting and coordinating complex issues with L3/OEM teams.

- Zscaler Proxy/VPN : Support and govern Zscaler Proxy/VPN-related network services, web-access controls and URL-filtering requirements.

- Cisco ISE & Wi-Fi : Working understanding of Cisco ISE, enterprise network authentication, WLCs and enterprise wireless infrastructure.

- Incident & Problem Management : Lead technical troubleshooting for major network incidents, coordinate restoration across internal teams, NOC, ISPs and OEMs, and drive RCA and corrective actions for P1 incidents.

- Change & Configuration Management : Technically review network changes, configuration updates and upgrades, ensuring implementation through approved change-management processes.

- Network Performance & Optimisation : Proactively review network availability, utilisation, performance and capacity; identify risks and drive improvements in stability and resilience.

- ISP/OEM/Vendor Management : Coordinate technical escalations with ISPs, OEMs and managed-service partners and drive resolution in alignment with agreed SLAs.

- Network Architecture & Projects : Support infrastructure expansions, network migrations and new-office projects including WAN/LAN/Wi-Fi design, IP/VLAN architecture, rack requirements, routers, switches, firewalls, load balancers, access points and LLD documentation.

- Governance & Documentation : Maintain network documentation, configurations, operational procedures and technical records; drive SLA governance and provide periodic operational, risk and performance updates.

Required Technical Skills :

- Strong enterprise LAN/WAN, TCP/IP, routing and switching knowledge.

- Working knowledge of VLAN, STP/RSTP/MSTP, EtherChannel, BGP and VPN technologies.

- Check Point Firewall administration and troubleshooting.

- F5 / Radware Load Balancer understanding and troubleshooting.

- Zscaler Proxy/VPN knowledge.

- Cisco ISE, WLC, enterprise Wi-Fi and access-point infrastructure knowledge.

- Strong troubleshooting across network, security and application-connectivity layers.

- Understanding of network monitoring, configuration management, capacity management, RCA and SLA-driven operations.

- Ability to review network architecture, HLD/LLD, configurations and implementation plans.

- Strong coordination and communication skills for L1/L2/L3, ISP, OEM and business stakeholder management.