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D03 Queenstown, Bukit Merah, Tiong Bahru, Singapore
ContractInformation Technology

Job Description

Experience: • Responsible for day-to-day Operation and administration of network and security infrastructure. • Experience in firewall, switches, routers, proxy, load balancers, NAC, Wireless, remote access (VPN) • Knowledge in managing Alcatel switches, Aruba Wireless Controllers, Palo Alto firewall, Network Access Control, RSA, F5 VPN, Alteon Load Balancers. • Knowledge in SDWAN and VxLAN • Knowledge in Cloud infrastructure (AWS) will be an advantage. • Experience in handling network projects. • Minimum 3 years relevant Network experience.

Responsibilities: • Provide BAU day to day operation support • Handle projects assigned by managers • Manage and maintain the network infrastructure • Monitor the network performance (bandwidth usage, health of network equipment etc.) to ensure network availability and reliability. • Support network related service requests • Proficient in analyzing and optimizing network performance • Collaborate with cross-functional teams, including vendors or business partners to troubleshoot and resolve network outages, ensuring minimal downtime and service disruption. • Implement innovative or automation solution • Provide standby support of network related issues • Design and implement new network solutions and improve efficiency of current network infrastructure. • Involve in Procuring of network equipment and managing subcontractors involved with network installation. • Work within established configuration and change management policies to ensure awareness, approval and success of changes made to the network infrastructure. • Liaise with vendors and other IT personnel for problem resolution. • Designing, writing, and updating system documentation, assets, and network diagrams. • Perform system upgrades including firmware, patches, hot fixes, and security configurations. • Quickly identify and assess network incidents, troubleshoot issues, and follow established procedures to resolve or escalate problems to higher levels of support as necessary. • Communicate effectively with stakeholders, service providers, including vendors to provide updates on network status and incident resolutions. • Maintain a thorough understanding of the network infrastructure, including new equipment and network solutions. Provide artifact when requested for audit purpose • Update security policy documents (Baseline, Standard, SOE, etc.) • Update (remove/add/delete/amend) network assets to our inventory system • Perform wall-to-wall network asset (check network equipment mounted on the network rack) • Knowledge of Aruba Clearpass (NAC) • Experience in firewall, switches, and load balancers.

About R Systems Consulting Services Limited

First seen: August 4, 2026
Last updated: August 5, 2026