Geylang - Senior Network & Security Architect - Telecommunications

placeGeylang descriptionTemporary calendar_month 

Senior Network & Security Architect – Telecommunications - 12-month contract

TECS are looking for a highly experienced Senior Network & Security Architect to lead the architecture, deployment, and optimization of cutting-edge telecom infrastructure across Southeast Asia. This strategic role demands deep technical expertise in 4G/5G mobile networks, core IP/MPLS infrastructure, and cybersecurity, with a proven ability to manage large-scale transformations for Tier-1 telcos.

Key Responsibilities:

  • Design and deliver high-performance network architectures for telecom service providers including 4G/5G Core, IMS, MPLS, and NFVI.
  • Lead end-to-end solutioning for major rollouts and upgrades (e.g., 5G labs, IP/MPLS cores, CGNAT, security gateways).
  • Act as a senior technical advisor for telecom clients on infrastructure modernization and security compliance.
  • Collaborate with pre-sales and delivery teams to support customer engagements, technical presentations, and PoCs.
  • Guide network operations support for live mobile network environments, ensuring resilience and regulatory alignment.
  • Manage RFP/RFQ technical responses, project scoping, and multi-vendor solution integration.

Core Requirements:

  • 15+ years in telecom and enterprise network infrastructure roles, including solution architecture and operations.
  • Extensive experience with mobile networks (3G/4G/5G), IP/MPLS, SDN/NFV, and IMS.
  • Deep knowledge of Cisco (CCIE R&S #3351), Juniper, Fortinet, Checkpoint, and advanced routing protocols (BGP, OSPF, IS-IS).
  • Hands-on delivery of projects for major telcos such as Singtel, Maxis, DNB Malaysia, Celcom, and TM.
  • Strong background in DDoS mitigation, secure gateway design, CGNAT, CDN, and telecom security architecture.
  • Familiarity with compliance and regulatory frameworks for telecom infrastructure.
  • Excellent communication skills across technical and executive stakeholders.

Preferred Certifications:

  • Cisco Certified Internetwork Expert (CCIE R&S)
  • Juniper JNCIS, Ericsson Router Certified Engineer, Citrix NSCA
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Senior Network & Security Architect – Telecommunications - 12-month contract TECS are looking for a highly experienced Senior Network & Security Architect to lead the architecture, deployment, and optimization of cutting-edge telecom infrastructure...