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Senior Network Specialist (SD-WAN)

D14 Geylang, Eunos, Singapore
Permanent, Full TimeInformation Technology

Job Description

  • Handle regular preventive maintenance on the SD-WAN Platform Operations. 
  • Support the expansion, upgrades and rollouts of new network and systems infrastructure involving hardware such as routers, switches, firewalls, virtual appliances, VNFs, network monitoring and management systems.
  • Support engineering teams on new product/ feature implementation, node deployment, and technical support matters. 
  • Responsible for troubleshooting and timely resolution of faults/issues within the SD-WAN platforms services. 
  • Analyze SD-WAN platforms performance and take proactive actions and preventive measures to monitor and enhance the network performance including software and hardware upgrades, etc. 
  • Prepare statistical reports on network and equipment performance.
  • Analyzing financial information (e.g. revenues, expenditures and cash management) to ensure all operations are within budget.
  • Presenting annual budgets to management.
  • Vendor negotiation and preparation of cost analysis and justifications.
  • Perform SD-WAN platforms performance analysis.
  • Proactively engage Engineering teams and recommend courses of actions to prevent incidents that may be caused by performance issues.
  • Archive prepared reports for future reference of job performance.

Skills for Success:

  • A Bachelor’s degree Electrical / Electronic / Computer Engineering / Computer Science / Information Systems from a recognized institution. 
  • 8 years minimum IP network experience
  • 3-5 years' experience with SD-WAN systems
  • Possess expertise with routers and switches installation e.g. Cisco, Juniper, Mellanox, Dell.
  • Possess expertise with Cisco SD-WAN, VMware VeloCloud SD-WAN, HPE Aruba SilverPeak SD-WAN, Fortinet SD-WAN, FortiSASE etc.
  • Good understanding of Internet routing protocols and technologies including TCP/IP, BGP, MPLS/VPN.
  • Knowledge of routers/switches architecture and software upgrade    procedure.  Good analytical and trouble-shooting skills in the area of technical fault isolation and rectification
  • Knowledge of hypervisors such as eSXI, Adva, proxmox and KVM.

About Singapore Telecommunications Limited

First seen: June 15, 2026
Last updated: June 15, 2026