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Senior Network & Security Engineer

Senior Network & Security Engineer

GOLDTECH RESOURCES PTE LTDIslandwide, SG
4 days ago
Job description

Roles & Responsibilities

We are seeking an experienced Senior Network & Security Engineer to join our team. You will play a key role in designing and delivering complex network and security solutions for enterprise clients, leading troubleshooting efforts and ensuring successful project deployments. In this role, you’ll also act as a trusted advisor to clients while collaborating closely with internal teams to drive project success.

What You’ll Do

  • Design & Implementation – Plan, design, and deploy enterprise network and security solutions, including routers, switches, wireless controllers, firewalls, load balancers and Cisco SD-WAN .
  • Project Delivery – Lead mid-sized to large-scale implementations, including racking and stacking devices, configuring systems and ensuring on-time delivery.
  • Troubleshooting – Diagnose and resolve connectivity, configuration, and performance issues; analyze network traffic to identify root causes.
  • Client Engagement – Build and maintain client relationships, align solutions with business needs and provide ongoing deployment support.
  • Collaboration – Work closely with project managers, operations, and cross-functional teams to ensure seamless delivery.
  • Documentation – Develop technical documents (LLD, TDS, As-Built, UAT, SAT) and secure client sign-offs for project closure.
  • Knowledge Transfer & Mentorship – Conduct project handovers, provide guidance to operations teams and run knowledge-sharing sessions.

What We’re Looking For

Must-Haves :

  • Diploma / Degree in Computer Science, Information Technology or related field.
  • 5–10 years’ experience in enterprise network design and deployment.
  • Strong expertise in Routing & Switching (BGP, OSPF, MPLS L3VPN, VSS, Spanning Tree, Multicast).
  • Experience with Cisco SD-WAN (Viptela, Meraki) , including design, deployment and troubleshooting.
  • Experience with wireless technologies : Cisco WLC, Aruba, DNAC, Ekahau, Prime, MSE / CMX.
  • Knowledge of data center technologies : Cisco Nexus (VDC, VPC, FEX), VXLAN, ACI.
  • Hands-on experience with firewalls & security : Cisco ASA, Firepower, Fortigate, IPSEC / SSL VPN, IPS / IDS.
  • Familiarity with NAC solutions : Cisco ISE, Aruba ClearPass.
  • Excellent communication and client-facing skills.
  • CCNP certification required; CCIE is a plus.
  • Please send your detailed resume in MS Word format to resume@goldtecHRs.com with

  • Education Level
  • Working experiences
  • Each employment background
  • Reason for leaving each employment
  • Last drawn salary
  • Expected salary
  • Date of availability
  • Tell employers what skills you have

    Switches

    OSPF

    Troubleshooting

    MPLS

    Data Center

    VSS

    CCNP

    Information Technology

    Routing

    Wireless

    Network Design

    Mentorship

    ASA

    Routers

    Project Delivery

    VPN

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