Network Engineer (Enterprise & Transportation Networks)

SBS TRANSIT LTD; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

A leading transportation solutions provider in Singapore is seeking a Network Engineer. This role focuses on network operations, engineering, and lifecycle management of a large-scale infrastructure supporting metro and bus services. The ideal candidate will have over 5 years of experience in enterprise networks, strong knowledge in Cisco and Huawei technologies, and a solid foundation in security protocols. Position involves high-availability operations and may require 24x7 on-call duties.

Qualifications

• Minimum 5 years of hands-on enterprise network engineering experience.
• Experience in high-availability, multi-site, mission-critical environments.
• Strong practical experience with Data Center networking architectures.

Responsibilities

• Provide L2/L3 operational support for various networks.
• Design, deploy, and optimize network solutions for different environments.
• Configure and maintain security controls using firewalls.

Skills

Enterprise network engineering experience

LAN, WAN, WLAN, MPLS

Cisco enterprise networking technologies

Palo Alto and/or Check Point firewalls

Education

CCNA

CCNP

Tools

Cisco routers and switches

Huawei networking equipment

Job description

The Network Engineer is responsible for the engineering, operations, and lifecycle management of a large‑scale enterprise and operational network infrastructure supporting metro and bus transportation services. The role focuses on high‑availability network operations, secure network design, and project execution across a geographically distributed, multi‑vendor environment. This position is designed for a technically strong engineer with a pathway to Network Lead responsibilities.

Technical Scope & Responsibilities

Network Operations & Support

• Provide L2/L3 operational support for enterprise and transportation networks spanning 100+ remote sites, 2 on‑premise data centers, and approximately 4,000 end users.
• Maintain network availability for mission‑critical transport operations, including participation in a 24x7 on‑call standby rotation.
• Perform advanced troubleshooting for routing, switching, wireless, firewall, and WAN issues across complex multi‑domain environments.
• Conduct root cause analysis (RCA), implement permanent corrective actions, and support continuous service improvement.

Network Engineering & Project Implementation

• Design, deploy, and optimize network solutions across:
  • LAN / Campus Networks (VLANs, STP, QoS, wired access)
  • WLAN (controller‑based wireless, secure mobility, high‑density environments)
  • WAN / MPLS (carrier integration, redundancy, traffic engineering)
  • Data Center Networking (core/distribution/access, segmentation, high availability)
• Participate in network lifecycle activities, including technology refresh, capacity planning, and obsolescence management.
• Implement resilient and scalable architectures aligned with enterprise and operational requirements.

Security Engineering

• Configure, operate, and maintain perimeter and internal security controls using Palo Alto and Check Point firewalls.
• Enforce security policies including network segmentation, access control, and secure routing.
• Support compliance with ISO standards through secure design, logging, and audit‑ready documentation.

Vendor & Carrier Management

• Support and administer multi‑vendor platforms including Cisco and Huawei routers, switches, wireless, and data center solutions.
• Work directly with telecommunication carriers on MPLS, leased circuits, and transmission services.
• Coordinate vendor support, fault escalation, and technology upgrades.

Documentation & Technical Governance

• Develop and maintain detailed network diagrams, configuration standards, and operational runbooks.
• Contribute to network standards, design templates, and engineering best practices.
• Provide technical guidance and mentoring as part of the succession path toward a Network Lead role.

Qualifications

• Minimum 5 years of hands‑on enterprise network engineering experience in large‑scale environments.
• Strong practical experience with: LAN, WAN, WLAN, MPLS and Data center networking architectures.
• Demonstrated expertise with Cisco enterprise networking technologies.
• Working experience supporting Huawei network infrastructure.
• Proven hands‑on experience with Palo Alto and/or Check Point firewalls.
• Experience operating networks in high‑availability, multi‑site, mission‑critical environments.
• CCNA required; CCNP strongly preferred.
• Willingness to support on‑site operations, hybrid work arrangements, and 24x7 standby support.