Campus & NAC Network Engineer — SD-WAN & ISE Expert

Optimum Solutions (Singapore) Pte Ltd.; Singapore; On-site; SGD 70,000 - 110,000; Full time

Job summary

Optimum Solutions (Singapore) Pte Ltd. seeks a Network Engineer (Campus and NAC) to design, build and operate enterprise campus networks, WLAN, WAN/SD‑WAN and NAC for a premier financial institution in Singapore.

You will lead hands-on deployments, site projects, and act as the on-site technical authority, coordinating with carriers and internal teams while ensuring ITIL-aligned change management and robust access control.

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or related discipline.
• 6 to 10 years hands-on enterprise campus network engineering experience.
• Strong implementation experience with Cisco Catalyst 9K in large-scale environments.
• Proven wireless design experience and survey tool proficiency.
• Advanced Cisco ISE (802.1X/MAB, posture, guest, TACACS+).
• Experience with Forescout eyeSight/eyeControl and NAC coexistence.
• SD-WAN design and deployment experience; carrier interfacing in SG.

Responsibilities

• Campus & Wireless Engineering: design and implement Cisco Catalyst 9K campus switching standards and wireless architectures.
• Hands-on implementation: lead on-site deployments, cabling, migrations, and data centre work.
• NAC: architect and configure Cisco ISE policies and access controls.
• Forescout & coexistence: design visibility and coexistence between ISE and Forescout.
• WAN, SD-WAN & governance: design topologies and manage circuit implementations with telecom carriers.
• ITIL change management: document designs and support regulatory audit requirements.

Skills

Campus networking

WLAN design

NAC

Cisco 9K knowledge

SD-WAN design

Network design & engineering

IT risk & ITIL change

Analytical thinking

Team collaboration

Vendor coordination

Education

Bachelor's degree in CS/IT or related

Tools

Cisco Catalyst 9K

Cisco ISE

Forescout eyeSight/eyeControl

SD-WAN (Viptela/Catalyst/Meraki)

Wireless survey tools (Ekahau)

Wi‑Fi 6/6E controller architectures

Job description

Optimum Solutions (Singapore) Pte Ltd. seeks a Network Engineer (Campus and NAC) to design, build and operate enterprise campus networks, WLAN, WAN/SD‑WAN and NAC for a premier financial institution in Singapore.

You will lead hands-on deployments, site projects, and act as the on-site technical authority, coordinating with carriers and internal teams while ensuring ITIL-aligned change management and robust access control.