COR-262 Network Engineer ネットワークエンジニア（拠点NW・閉域網・AWS）

📋 Job Overview

Drive end-to-end network projects for R&D—from architecture to execution across branch networks, private networks, and AWS connectivity. This position is responsible for designing and operating the branch networks, private networks, on-premises infrastructure, and AWS connectivity that support our R&D and office environments. While this is not a Cloud SRE role, AWS networking is within your scope. You will primarily focus on on-premises and private networks, while expanding your coverage to the entire network architecture, including AWS.

🏢 About [Company]

We are an organization focused on AI and robotics R&D, requiring robust network infrastructure to support our cutting-edge research and development activities.

🎯 The Role

You will be responsible for designing, implementing, and maintaining network infrastructure that spans both on-premises and cloud environments. This includes branch networks, private networks, and AWS connectivity. Your work will directly support our R&D and office environments, ensuring seamless connectivity and high performance.

✅ Key Responsibilities

• Design and operate internal LANs, branch networks, and private networks (closed networks).
• Define network requirements for new office setups, relocations, and floor expansions.
• Determine hardware configurations and equipment sizing based on user count, device count, traffic volume, required bandwidth, port density, PoE requirements, redundancy, and wireless AP density.
• Design and operate Layer 2 and Layer 3 networks.
• Configure and maintain VLANs, routing protocols, and firewall rules.
• Hands-on operation and management of FortiGate and Cisco Meraki hardware.
• Design and review connections between on-premises / private networks and AWS network components (VPC, Subnet, Route Table, Security Group/NACL, VPN, Direct Connect, etc.).
• Perform network troubleshooting and manage incident response.
• Coordinate with telecom carriers and network vendors.
• Plan and manage network projects, including tracking issues, monitoring progress, and coordinating across stakeholders.
• Manage on-premises infrastructure, such as Linux servers and NAS storage.
• Create and maintain network topology diagrams and standard operating procedures (SOPs).
• Design and operate networks with a strong focus on information security best practices.

📌 Required Qualifications

• Strong foundational knowledge of networking concepts (TCP/IP, Routing, VLANs, etc.).
• Hands-on experience designing and operating L2/L3 switches, routers, and firewalls.
• Proven track record in network troubleshooting and issue isolation.
• Operational experience with on-premises systems and infrastructure.

⭐ Desirable Experience

• Experience with AWS networking components (VPC, Subnet, Route Table, Security Group/NACL, VPN, Direct Connect, etc.).
• Experience with FortiGate and Cisco Meraki hardware.
• Experience with Linux servers and NAS storage.
• Project management experience.

🎁 Benefits

Competitive salary and benefits package.

🛂 Visa & Eligibility

Eligibility to work in Japan is required.