Systems and Network Engineer

O2 NETWORK PTE. LTD.; Singapore; On-site; SGD 60,000 - 110,000; Full time

Job summary

O2 NETWORK PTE. LTD. in Singapore seeks a Systems & Network Engineer to bridge client-facing solution design with hands-on network operations. You will engage with clients, design and support network infrastructure, and lead incident response to minimise downtime.

Ideal candidates have 3–5 years in systems or network engineering, experience with Cisco/CCNA, Fortinet, and Microsoft platforms, and strong English communication for technical docs and client interactions.

Qualifications

• Diploma or Bachelor’s degree in a technical discipline.
• 3–5 years of systems or network engineering experience, preferably with client exposure.
• Working knowledge of Cisco/CCNA, Fortinet, and Microsoft platforms.

Responsibilities

• Engage with clients to understand requirements and propose solutions.
• Design, configure, and support network infrastructure including switching, routing, wireless, and security.
• Perform maintenance, troubleshooting, and incident response to minimise downtime.
• Document configurations and resolutions for internal knowledge sharing.
• Collaborate with engineering, project delivery, and sales teams to ensure feasible solutions.

Skills

Client-facing

Solution design

Network engineering

Troubleshooting

Incident response

Documentation

Cross-functional collaboration

English communication

Education

Diploma/ Bachelor in Electrical/Electronic Engineering

Diploma/ Bachelor in Information Technology

Tools

Cisco/CCNA

Fortinet

Microsoft platforms

Job description

Job Summary

The Systems & Network Engineer plays a hybrid role spanning client-facing solutioning and day-to-day operational support of systems and network infrastructure. This role works directly with clients to understand requirements and support technical solution design, while also handling ongoing network maintenance, troubleshooting, and incident response across deployed environments. The role suits a candidate comfortable moving between solution-oriented client engagement and hands-on operational work.

Key Responsibilities

• Engage directly with clients to understand systems and network requirements, supporting technical solution design and proposals.
• Design, configure, and support network infrastructure, including switching, routing, wireless, and network security components.
• Perform network maintenance activities, including monitoring, patching, and performance optimisation.
• Troubleshoot and resolve systems and network issues, providing timely incident response to minimise downtime.
• Support integration between systems and network infrastructure and other solutions (e.g. ELV, structured cabling) as part of project delivery.
• Maintain working knowledge of relevant platforms and standards (e.g. Cisco/CCNA, Fortinet, Microsoft), using these as reference points to guide solution design and troubleshooting.
• Document network configurations, incident resolutions, and system changes for internal knowledge management.
• Collaborate closely with engineering, project delivery, and sales teams to ensure solutions are practical, deliverable, and aligned with client needs.
• Support internal systems and network infrastructure where required.

Job Requirements

• Diploma or Bachelor’s Degree in Electrical/Electronic Engineering, Computer Engineering, Information Technology, or related technical discipline.
• 3-5 years of relevant experience in systems and/or network engineering, ideally with some client-facing exposure.
• Working knowledge of networking and systems platforms (e.g. Cisco/CCNA, Fortinet, Microsoft), with relevant certifications considered an advantage rather than a requirement.
• Practical experience with network troubleshooting, maintenance, and incident response.
• Good command of English for technical documentation and client communication.
• Comfortable working within Singapore-based site visits as part of the role.
• Strong client engagement mindset.
• Effective communicator across cross-functional teams (engineering, sales, project delivery).
• A collaborative team player.
• Curious and innovative in approach to problem-solving and technical learning.