Network Engineer

RAPSYS TECHNOLOGIES PTE. LTD.; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

RAPSYS TECHNOLOGIES PTE. LTD. is seeking a Network Engineer to manage and support campus network infrastructure in Singapore. You will configure VLANs, ACLs, firewalls, DNS, and IP address management, and ensure uptime through proactive monitoring and backups.

Responsibilities include on-site troubleshooting, firmware upgrades, vulnerability remediation, documentation, and collaboration with ISPs and vendors. A CCNA (and PCNSA/PCNSP) certification is preferred, with a degree in a related field.

Qualifications

• 3+ years’ experience as a Network Engineer supporting large campus network.
• Bachelor’s degree in Computer Science, Engineering, or a related field.
• Strong analytical and problem-solving skills.
• Self-motivated with a strong sense of ownership.
• CCNA certification.
• PCNSA/PCNSP certification is a plus.

Responsibilities

• Manage and document network device configurations, changes, and ensure weekly automated backups.
• Troubleshoot and resolve issues related to hardware, software, and firmware, including on-site support.
• Conduct daily system checks, monitor network services, and analyze alerts and performance data.
• Liaise with ISPs, service providers, and internal teams on operational matters.
• Assist and work with vendors on cabling management and patching processes.
• Provide support for wireless configuration and surveys.

Skills

Analytical skills

Network troubleshooting

Ownership

CCNA

Problem-solving

Education

Bachelor’s degree in Computer Science, Engineering, or related field

PCNSA/PCNSP certification (plus)

Job description

Key Accountabilities

Manage, administer, configure, and provide technical support for network equipment (switches, wireless APs, firewalls, DNS appliances, UPS) and services, including VLANs, ACLs, firewall rules, DNS, and IP address management.

Install, maintain, and upgrade network hardware firmware/software; apply patches, hotfixes, and manage vulnerability remediation.

Take ownership of network problems, troubleshoot and resolve issues related to hardware, software, and firmware, performing on-site support as needed.

Conduct daily system checks, monitor network services availability, and contribute to network health checks by analyzing alerts, statistics, and performance data.

Manage and document all network device configurations, changes, and ensure weekly automated backups.

Record network service outages and follow up on outstanding technical issues with vendors to ensure resolution within Service Level Agreement (SLA).

Liaise effectively with ISPs, other service providers, and internal teams on operational matters.

Assist and work with vendors with cabling management, including patching, documentation, 1st level troubleshooting of connections, and ensuring correct configuration/labeling of new outlets.

Provide support for wireless configuration and surveys.

Maintain comprehensive network documentation (diagrams, topologies, issues) and assist in proactive monitoring and monthly reporting for network resources.

Conduct annual asset verification, track equipment movements (deployment, RMA, relocation, decommissioning), and update inventory records.

Participate in network implementation and migration projects as required.

Assist in supporting operational requirements such as power maintenance shutdowns, periodic system audits, and service validation.

Adhere strictly to policies, rules, regulations, and IT security policies in all operational aspects.

Desired Experience, Knowledge & Attributes

• Bachelor’s degree in Computer Science, Engineering, or a related field
• 3+ years’ experience as a Network Engineer supporting large campus network
• Strong analytical and problem-solving skills
• Self-motivated with a strong sense of ownership
• Possesses a valid CCNA certification
• Certification in PCNSA/PCNSP is a plus