About me

Veteran Network Engineer and IT Administrator at KDDI HCM GNOC Viet Nam.

Senior Network Engineer with 2+ years of experience in the field of Networking.
Senior IT Administrator with 2+ years of experience in network implementation, security monitoring and helpdesk.
Strong ability to comprehend and construct network systems, not only utilizing traditional technologies across L2 and L3 networks such as MPLS, VPLS and IPSEC, but also specializing in cutting-edge technologies like Cisco Software-Defined WAN and Aryaka Software-Defined WAN.

Education

Bachelor's degree in Computer and information systems security major.

Main research topics:

Charged with network planning, implementation and testing on WAN side for international customers:

Perform Configuration for many networking platforms, mainly on Cisco and Juniper.
Perform testing to ensure network connection and quality of service.
Cooperate with both KDDI engineers and oversea carriers to troubleshoot and maintain quality of network.
Maintain comprehensive documentation of network configurations and troubleshooting procedures to facilitate knowledge and transfer to other members.

Specialist in Cisco SD-WAN technology:

Implement Cisco SD-WAN architecture within KDDI specifications.
Configuring security and control of traffic on SD-WAN.
Experience in upgrading SD-WAN appliances with latest software and configuration.
Develop documentation and proficiency in conveying knowledge to colleagues.

Provide IT helpdesk for 150+ users:

Conduct troubleshooting to resolve IT-related issues to users.
Developed and implemented a ticketing system to monito tickets, track incidents, and troubleshoot issues.
Provide information to users about policy and changes in company system.

IT Administrator for network implementation and security monitoring:

Installed, configured and operated networking systems and provided beneficial technological support to colleagues.
Working with colleagues and outside contractors to build company network in 2021 and 2024.
Experienced in working with Microsoft server and Azure AD.
Experienced in working with Linux server configuration.
Experienced in working with DELL and IBM servers.
Experienced in working with Juniper SRX and Palo Alto Firewalls.
Experienced in cabling, rack mounting and server construction.
Maintained the company's security systems based on ISO/IEC 27001:2022.

Network protocols knowledge: Understanding of protocols like TCP/IP, HTTP, DNS, SMTP, and more.
Network architecture: Ability to design and implement both LANs and WANs.
Troubleshooting: Proficiency in identifying and resolving network issues to ensure minimal downtime and maintain high levels of operational efficiency.
Security: Knowledge of network security measures, including firewalls and anti-virus systems to protect sensitive data.
Software and hardware familiarity: Experience with specific network hardware and software in Cisco and Juniper and Microsoft Server.

Problem-solving: Ability to analyze complex technical issues and devise effective solutions, maintaining network performance and reliability.
Communication: Proficiency in explaining technical concepts in simple, understandable language to non-technical colleagues and clients.
Teamwork: Ability to collaborate effectively with other IT professionals in project implementation and problem-solving scenarios.
Time management: Skilled in prioritizing tasks, managing workload, and working in a fast-paced work environment.