Network Engineer

Responsibilities • Manage, maintain, and support enterprise network infrastructure (routers, switches, firewalls, load balancers) in 24/7 production environments. • Design, implement, and troubleshoot hybrid network connectivity between on-premises data centres and AWS cloud environments, including VPCs, VPNs, and Direct Connect. • Configure and maintain network security controls such as firewalls, security groups, NACLs, segmentation, and zoning in compliance with security standards. • Monitor network performance, availability, and capacity using network monitoring tools; identify and resolve performance bottlenecks. • Investigate and resolve network incidents, outages, latency, and connectivity issues, performing root cause analysis (RCA) and collaborating with internal teams and vendors. • Execute network deployments, configuration changes, and upgrades following change management (CAB) processes with validation and rollback planning. • Manage external connectivity with telecom providers, payment gateways, and third-party vendors while ensuring reliable service delivery. • Maintain network documentation, disaster recovery (DR) readiness, operational procedures, and provide after-hours support for critical incidents and maintenance. Requirements • Minimum 3 years of experience supporting enterprise or mission-critical hybrid network environments (on-premises and cloud). • Strong hands-on experience with AWS networking, including VPCs, subnets, route tables, security groups, NACLs, VPNs, and Direct Connect. • Solid knowledge of TCP/IP, routing and switching (Layer 2/3), DNS, DHCP, BGP, OSPF, VPNs, network security, high availability, and disaster recovery. • Experience managing enterprise firewalls (e.g., Palo Alto, Fortinet, Check Point), load balancers, and network troubleshooting tools such as Wireshark and traceroute. • Relevant certifications such as CCNA/CCNP, AWS Certified Cloud Operations Engineer – Associate, Check Point (CCSA/CCSE), or Fortinet (FCA/FCP) are preferred. Willingness to support after-hours operations, including deployments, maintenance, and incident response. GMP Recruitment Services (S) Pte Ltd | EA Licence: 09C3051 | VO UYEN AI LINH | Registration No: R22109232