Experienced Network Operations Officer with a strong background in enterprise network infrastructure, system administration, and virtualization. Proven expertise in configuring and maintaining complex networks, implementing secure and scalable routing and switching solutions (CCNP-certified), and administering Linux-based systems. Adept at troubleshooting, performance optimization, and ensuring high availability across IT environments. Enthusiastic about continuous learning and cross-cultural communication, with working proficiency in Japanese (JLPT N4).

Technical Skills & Expertise :
Cisco Networking:

Routers: Cisco 7200, 3725, 2900 series Juniper MX series

Switches: Cisco Catalyst 2950, 2960, 3550, 3560

Routing Protocols: EIGRP, OSPF, BGP

Network Features & Security: ACL, VTP, STP, Secure administrative access on Cisco Routers, ASA

Management: Proficient in configuring and managing Cisco devices for optimized performance, security, and scalability.

MikroTik Networking:

Routers: MikroTik RouterBoard 450G, 1000, 1100

Services: Configuration and maintenance of DHCP, NAT, PPTP server, VPN services, IP-IP Tunnel, EoIP Tunnel, Bridge, Wireless networks, Time Scheduler

Linux Systems Administration (RedHat/CentOS/Fedora):

Servers: Proficient in managing CentOS/Fedora Linux environments

Services: DNS, Web Mail, Sendmail, CBQ, HTB, Cacti, DHCP, Iptables, FTP, Squid, and Web Servers

Tools: Advanced expertise in using Linux-based tools for network management, monitoring, and optimization.

Fiber Optics:

Expertise in fiber optic point-to-point links (single-mode and multi-mode)

Familiar with underground networking and infrastructure deployment.

IP Address Management:

Managing IP blocks: 103.221.252.0/21
Advanced knowledge in IP address allocation and network design.

Application Software:
Microsoft Office Suite, Eudora, Outlook Express, and various other software applications.