Information Technology Infrastructure Engineer

Sedha Consulting Pty Ltd.; Singapore; On-site; SGD 140,000 - 210,000; Full time

Job summary

Sedha Consulting Pty Ltd. seeks a Senior Network & Security Engineer to own the design, deployment and operations of the enterprise network across datacenter, campus, remote offices and cloud.

You will lead deployment projects, coordinate with vendors, provide Tier-3 support, and drive automation and AI-enabled network operations while participating in a rotating on-call schedule, including weekends. The role requires strong expertise in LAN/WAN, firewall administration, and network security,

Qualifications

• 8–14 years in core network tech incl. Cisco ACI, Checkpoint & Palo Alto Firewalls, F5 Load Balancer/WAF.
• Leading complex networks for Datacenter or Public cloud migrations.
• CCIE/CCNP/PCNSE/CCSE/AWS Advanced Networking—Specialty or equivalents.
• Strong knowledge in LAN, WAN and Network Security.
• Excellent project and vendor management.
• Excellent written and verbal communication with non-technical audiences.

Responsibilities

• Lead network deployment projects, ensuring timely and successful implementation of network solutions.
• Work with vendors for Solution Architecture, procurement and installation.
• Provide Tier-3 support and participate in on-call schedule.
• Create, maintain and review High Level Design, Low Level Design & Operational practices.
• Drive network operations and day-to-day task efficiencies through Automation.
• Experience with AI tools in network operations and MCP servers for LLM interaction.
• Desirable: MCP servers to enable large language models to interact with network infra.

Skills

Network engineering

Security engineering

Vendor management

Project management

On-call experience

Education

Bachelor's degree in Networking

CCIE/CCNP/PCNSE/CCSE/AWS Advanced Networking - Specialty or equivalents

Tools

Cisco ACI

Check Point

Palo Alto

F5 Load Balancer

WAF

Infoblox IPAM

Illumio

Guardicore

Wireshark

SolarWinds

Riverbed

ThousandEyes

AWS Networking

Job description

We are seeking a highly skilled and motivated Senior Network & Security Engineer to join our team in the Network Operations and Engineering function. The ideal candidate will play a key role in implementing and maintaining our organization's network infrastructure. The role involves working collaboratively with cross-functional teams to ensure the reliability, scalability, and security of the network.

Part of a team that is responsible for the Network Engineering, Operations & Deployment function and supporting Datacenter, Campus, Remote Offices and Public Cloud Network.

This is a technical hands-on role in the Network Services team as Senior Network & Security Engineer.

• Lead network deployment projects, ensuring timely and successful implementation of network solutions.
• Work closely with vendors and third-party providers for Solution Architecture, Equipment procurement and installation.
• Provide Tier-3 support for Network & Security related issues and participate in a rotating Network Operations on-call schedule, including weekends, supporting a multi-vendor network for Enterprise Network.
• Create, maintain and review High Level Design, Low Level Design & Operational practices across the teams.
• Drive network operations and day-to-day task efficiencies through Automation.
• Experience in deploying and working with AI tools applied to network operations, including AIOps platforms, AI-assisted troubleshooting, and anomaly detection
• Experience in the deployment and configuration of Model Context Protocol (MCP) servers to enable large language models to interact with and query network infrastructure and operational data is highly desirable.

Preferred qualifications

A bachelor’s degree and 8 -14 years of experience in core Network technologies including Cisco ACI, Checkpoint & Palo Alto Firewalls, F5 Load balancer & WAF.

• Demonstrated experience in leading and managing complex network for Datacenter or Public cloud migration projects.
• Proven ability to implement and oversee large-scale network deployments.
• One or more of the following Certifications - CCIE, CCNP, PCNSE, CCSE, AWS Certified Advanced Networking - Specialty or equivalents
• Strong fundamental knowledge in LAN, WAN and Network Security technologies and products.
• Excellent project and vendor management skills.
• Excellent written and verbal communication skills with demonstrated ability to influence and communicate effectively with non-technical audiences and senior management.

Mandatory Skillsets

• Expertise in Application Delivery Network products – F5 Load balancers & WAF
• Expertise in managing Checkpoint & Palo Alto Firewalls & IPS

Good to have Skillsets

• Experience in Application Delivery Network products –Bluecoat Proxy & Akamai CDN.
• Experience in managing Infoblox IPAM, DNS, DHCP solutions.
• Experience in managing Micro segmentation products like Illumio and Guardicore.
• Experience in managing Voice Infrastructure with Cisco CUCM and Verint Recorders.
• Experience in managing network management systems like SolarWinds, Riverbed & Thousand Eyes.
• Experience in performing Deep packet capture analysis using Wireshark or Similar products.
• Experience in Network Automation using Ansible & Terraform.
• Experience in managing Network Security Products like NAC, ISE & Algosec.