Kinh nghiệm SD-WAN và mạng hybrid cloud trên Azure, AWS hoặc GCP
Thành thạo công cụ giám sát, NetBox, Wireshark, tcpdump; sẵn sàng on-call
Trách nhiệm
Vận hành hạ tầng mạng văn phòng, Data Center (Switching, Load Balancer, WAN, SD-WAN)
Quản trị hệ thống tường lửa đa hãng Palo Alto, Fortinet, Cisco và VPN
Xây dựng, duy trì kết nối Hybrid/Multi-Cloud trên Azure, AWS và GCP
Hỗ trợ xử lý sự cố mạng mức L2/L3, phân tích log, packet capture và viết báo cáo RCA
Có thì tốt
Tự động hóa mạng với Ansible, Terraform hoặc Python
CCNA/CCNP, Fortinet NSE, PCNSA/PCNSE hoặc chứng chỉ Cloud Networking
Quan tâm SASE, Zero Trust và Network-as-Code
Tóm tắt bằng AI từ JD gốc, đọc JD gốc trước khi ứng tuyển.
**About the Role**
Own the operation, monitoring, troubleshooting and maintenance of Masan's core network across our corporate office, selected Data Center domains and multi-cloud environments.
Beyond day-to-day multi-vendor operations, you will support IT teams across Masan's member companies with L2/L3 escalations, run periodic Network & Firewall Audits, and provide technical advisory to standardize network infrastructure across the Group.
**What You'll Do**
Operate, configure and maintain the office network and assigned Data Center domains (Core/Spine-Leaf switching, vPC/Stacking, Load Balancers), plus WAN and SD-WAN.
Manage the enterprise wireless estate (Access Points, Wireless Controllers): RF optimization, roaming, QoS, DHCP/DNS and 802.1X/NAC authentication.
Run multi-vendor firewalls (Palo Alto, Fortinet, Cisco) and their management platforms (Panorama, FortiManager, FortiAnalyzer): policy and NAT changes, IPsec/SSL VPN, IDS/IPS and network segmentation.
Build and maintain Hybrid/Multi-Cloud connectivity across Azure, AWS and GCP (ExpressRoute, Direct Connect, Cloud Interconnect, VPN Gateway, VNet/VPC routing, Transit Gateway, Load Balancer).
Support member-company IT teams with network operations and L2/L3 escalations; conduct periodic network/firewall configuration audits and recommend infrastructure optimizations.
Monitor availability, capacity and performance via NMS tools (Zabbix, PRTG, SolarWinds, SNMP, Syslog, NetFlow) to meet SLAs on uptime, latency and bandwidth.
Analyze logs and packet captures (Wireshark, tcpdump) to resolve complex incidents and author Root Cause Analysis (RCA) reports for major events.
Coordinate with ISPs on circuit quality and SLAs, and with vendors (Cisco, Fortinet, Palo Alto, Huawei, Juniper) on TAC cases and hardware RMA.
Perform scheduled maintenance: config backups, health checks, firmware/OS upgrades and CVE patching under Change Management.
Maintain accurate technical documentation (network diagrams, IPAM/NetBox, standard configs, SOPs/runbooks) and automate repetitive tasks with Ansible, Terraform and Python.
Join UAT, cutover and operational handover for new infrastructure and cloud migrations.
**What We're Looking For**
Bachelor's degree in IT, Computer Science, Electronics & Telecommunications or a related field.
**Experience:**
3–5 years (Network Engineer) or 5+ years (Senior Network Engineer) in enterprise network operations across office, multi-branch, Data Center or Cloud environments.
Hands-on configuration and troubleshooting of multi-vendor firewalls (Palo Alto, FortiGate, Cisco Firepower; Panorama, FortiManager/FortiAnalyzer), switches/routers (Cisco Catalyst/Nexus, FortiSwitch, Huawei, Juniper) and wireless (Cisco WLC/Meraki, FortiAP, Aruba).
