Senior Network Engineer

Key Responsibilities 

• Identify gaps and deficiencies in the current network architecture and operations, propose improvement plans, and drive implementation  

• Troubleshoot and resolve complex network issues, including RCA (Root Cause Analysis), performance tuning, and incident management  

• Manage network infrastructure including routers, switches, firewalls, and wireless systems (configuration, maintenance, and security hardening)  

• Design, implement, and maintain data center and workplace network environments  

• Monitor network performance, identify bottlenecks and SPOF, and continuously optimize network quality and reliability  

• Establish and maintain network operation standards, documentation, and operational processes  

• Collaborate with cross-functional teams to ensure smooth project delivery and adherence to IT governance standards  

• Develop and maintain automation scripts, configuration templates, and backup strategies  

• Manage network monitoring, alerting, and reporting using tools such as Zabbix, Grafana, and ELK  

• Support capacity planning, scalability, and lifecycle management (Day 0, Day 1, Day 2 operations)  

• Ensure network security compliance and safe transmission of internal data  

Qualifications & Experience 

• Minimum 5 years of experience in network engineering, implementation, and operations  

• Strong hands-on experience in enterprise and/or data center network environments  

• Experience in global enterprise, large-scale environments, or consulting firms (e.g., Big4) is an advantage  

• Proven ability to troubleshoot complex network issues and deliver end-to-end solutions  

• Experience in network design, planning, and project implementation is preferred  

Technical Skills 

Network & Protocols 

• Strong knowledge of IP routing and switching (OSPF, BGP, MPLS VPN)  

• Experience with SD-WAN technologies (e.g., Velo SD-WAN)  

• Solid understanding of LAN/WAN architectures  

Devices & Platforms 

• Hands-on experience with Cisco, H3C, Aruba, and other mainstream vendors  

• Familiar with routers, switches, firewalls, and wireless solutions  

Security 

• Experience with Fortinet firewalls, WAF, NAC (ISE/FAC), and network security controls  

• Understanding of network security best practices and monitoring  

Tools & Automation 

• Experience with monitoring tools (Zabbix, Grafana, ELK)  

• Familiar with IPAM, configuration backup, and automation/orchestration tools  

Certifications (Preferred) 

• CCNA / CCNP or equivalent practical experience