Network Solutions Architect

[Job Responsibilities] • Requirements definition, solution development, design, and implementation in the network field. • Preparation of due diligence documents, RFPs, and RFP responses related to various network technologies. • Responsibility for effort estimation, contract term development, and resource management. • Management and troubleshooting of Zscaler security solutions (including internet security policies and traffic filtering). • Configuration, maintenance, and support of Palo Alto firewalls (including security rules, VPN, and threat prevention). • Management and optimization of F5 load balancers (LTM, GTM) to ensure high availability and performance. • Deploy, configure, and manage Fortinet firewalls to ensure secure network operation. • Maintain and troubleshoot DNS and DHCP infrastructure for seamless network connectivity. • Collaborate with cross-functional teams to enhance security policies and network functionality. • Monitor and resolve network performance, security events, and incidents. • Document configurations, network diagrams, and operational procedures. • Provide L2 support for network incidents. [Other Information] Start Date: Immediately Duration: Long-term Location: Roppongi, fully on-site work *Project Background: Network Center of Excellence (oversees all network projects) Working Hours: 9:00 - 18:00 [Job Requirements] [Required Skills] • 4-7 years of practical experience in network security and infrastructure. • Practical experience with Zscaler, Palo Alto Networks, F5 load balancers, Fortinet, DNS, and DHCP • Deep knowledge of firewall policies, security rules, VPNs, and threat prevention • Extensive experience in managing Palo Alto Prisma Access and SaaS inline applications • Experience configuring and troubleshooting F5 load balancers (LTM, GTM) • Proficiency in DNS (Bind, Infoblox) and DHCP (Windows and Linux-based solutions) • Knowledge of network protocols (TCP/IP, BGP, OSPF, etc.) and security best practices • Thorough understanding of zero-trust security models and cloud security • Problem-solving skills to perform in a fast-paced environment • Excellent communication and documentation skills • Proficiency in Japanese and business-level English [Recommended Certifications (Not Required, but Preferred)] • Zscaler Certified Professional (ZCCP) • Palo Alto Networks Certified Network Security Engineer (PCNSE) • F5 Certified Administrator (F5-CA) • Fortinet NSE 4 or higher • Cisco Certified Network Associate (CCNA), CCNP Security, or CCIE English Level: Business Conversation Level (TOEIC 735-860) Japanese Level: Native Level Job Contract Period: full-time employee