Senior Network Engineer

Key Responsibilities:

• Provide Level 2 troubleshooting and operational support for global network infrastructure, including WAN, LAN, WLAN, VLAN, NAC, Firewalls, Proxies, VPNs, and Partner Connections
• Monitor and maintain approximately 200 network devices across 11 offices/branches and a data center in Japan
• Coordinate with global IT teams and local infrastructure departments on network-related projects and operations
• Manage vendor interactions, equipment procurement, and circuit management for network upgrades and decommissions
• Support Firewall operations, including rule checks and log analysis
• Oversee Network Access Control (NAC) solutions and wireless access points
• Maintain inventory and documentation of network devices and configurations
• Respond to network issues and requests via a ticketing system
• Perform after-hours and weekend support for planned projects or urgent issues

Requirements:

• Bachelor’s degree in IT, Engineering, or Computer Science (or related field)
• 2-3 years of experience as a network engineer in a large enterprise environment
• Hands-on expertise in troubleshooting and configuring WAN, LAN, WLAN, VPNs, Firewalls, and Proxies
• Knowledge of routing protocols (EIGRP, BGP, MPLS) and Cisco LAN/WIFI technologies; Palo Alto Firewall knowledge is a plus
• Certifications such as CCNA or CCNP
• Familiarity with ITIL processes
• Fluency in English and Japanese, with strong communication and documentation skills
• Ability to plan, organize, and work collaboratively in a global environment

Technologies Supported:

• L2/L3 LAN and SD-WAN solutions
• Wireless LAN and Zero-Trust networks
• Cloud-based proxy systems
• Radius authentication and NAC solutions
• Microsoft security solutions