Senior Network & Security Engineer Job Singapore Singapore,IT/Tech

About the Role

Our client is a well-established technology company operating in the managed services and cloud infrastructure space, with a strong presence across enterprise and public sector environments. They are looking for a

Senior Network & Security Engineer

to join their Network Operations and Engineering function, playing a central role in maintaining and advancing a complex, multi-site network infrastructure. This is a hands-on technical position offering broad exposure to enterprise networking, security, and emerging AI-driven operations tooling — making it an excellent opportunity for a seasoned network professional looking to work at the forefront of modern infrastructure engineering.

Key Responsibilities

Lead
network deployment projects
end-to-end, ensuring timely delivery and successful implementation of network solutions across data centre, campus, remote office, and public cloud environments
Collaborate with vendors and third-party providers on solution architecture, equipment procurement, and installation
Provide Tier-3 support for network and security incidents, participating in a rotating on-call schedule (including weekends) to sustain a stable, multi-vendor enterprise network
Develop and maintain High-Level Design (HLD), Low-Level Design (LLD), and operational documentation and standards across the team
Drive operational efficiency through
network automation
, streamlining day-to-day tasks and processes
Deploy and manage AI-assisted network operations tools, including AIOps platforms, AI-driven troubleshooting workflows, and anomaly detection systems
Configure and implement Model Context Protocol (MCP) servers to enable large language models to interface with and query network infrastructure and operational data
Engage effectively with non-technical stakeholders and senior management to communicate network strategy, risks, and recommendations clearly

Requirements

Bachelor's degree in a relevant field with at least 8 years of hands-on experience in enterprise network technologies, including
Cisco ACI
, Checkpoint and Palo Alto firewalls, and F5 load balancers and WAF
Demonstrated experience leading complex network projects involving data centre builds or public cloud migrations, with a proven ability to manage large-scale deployments
Holding one or more of the following certifications: CCIE, CCNP, PCNSE, CCSE, or AWS Certified Advanced Networking – Specialty (or equivalent) is strongly preferred
Strong foundational knowledge across LAN, WAN, and
network security technologies, paired with excellent project and vendor management capabilities
Experience with Bluecoat Proxy, Akamai CDN, Infoblox IPAM/DNS/DHCP, or microsegmentation platforms such as Illumio or Guardicore(is a bonus)
Experience with network automation tools such as
Ansible
or Terraform, network monitoring platforms (e.g. Solar Winds, Thousand Eyes), or network security products such as NAC, ISE, or Algo Sec(is a bonus)