Senior Network Systems Engineer

Job Description & Requirements Job Description • Design, implement, administer, and provide operational support for network and data centre infrastructure. • Perform network configuration, troubleshooting, maintenance, and optimisation to ensure high availability and performance. • Manage and support network infrastructure including Cisco/Aruba network devices and Cisco ACI. • Configure and troubleshoot routing and network technologies including TCP/IP, IPsec, VRRP, HSRP, SNMP, NAT, Multicast, Subnetting, Ethernet, and Access Control Lists. • Manage and troubleshoot routing protocols including BGP, OSPF, EIGRP, IS-IS, and MPLS. • Administer and support network security infrastructure including firewalls, VPNs, authentication servers, and other security devices. • Perform administration and support of network security platforms such as Check Point, Cisco Firepower, Fortinet, and Palo Alto. • Monitor network performance, availability, capacity, and health proactively, and implement corrective actions to maintain service levels. • Perform network and infrastructure changes in accordance with approved change management procedures. • Plan and execute hardware, firmware, and software upgrades, security patches, and infrastructure refresh activities. • Perform backup and recovery activities, including high availability and failover configuration, to meet required RTO and RPO. • Participate in Disaster Recovery (DR) and Business Continuity Plan (BCP) activities, including testing, failover, and recovery exercises. • Provide 24x7 operations support, including scheduled on-call and after-hours emergency support when required. • Investigate and troubleshoot incidents within the required response timeframe and work towards timely resolution and root-cause identification. • Maintain accurate technical documentation, network diagrams, configuration records, operational procedures, and system manuals. • Manage network-related projects, including infrastructure upgrades, new deployments, migrations, and technology refreshes. • Work closely with internal teams, customers, vendors, and contractors to resolve technical issues and deliver infrastructure projects. • Manage vendors and contractors to ensure project implementation meets technical requirements, agreed timelines, and service levels. • Review infrastructure requirements, technical solutions, risks, migration plans, and capacity requirements for new projects. • Support RFQ/RFP preparation by providing technical specifications, architecture information, and network requirements. • Identify opportunities to improve network monitoring, operational processes, automation, and overall infrastructure efficiency. Requirements: • Diploma/Degree in Information Technology, Computer Science, Engineering, or a related discipline. • Minimum 5 years of relevant experience in network engineering, network administration, infrastructure support, or data centre environment. • Strong hands-on experience supporting and maintaining Cisco/Aruba network devices and/or Cisco ACI. • Strong knowledge of network technologies including TCP/IP, IPsec, VRRP, HSRP, SNMP, NAT, Multicast, Subnetting, Ethernet, and Access Control Lists. • Good working knowledge of routing protocols including BGP, OSPF, EIGRP, IS-IS, and MPLS. • Hands-on experience with network security devices such as Check Point, Cisco Firepower, Fortinet, or Palo Alto firewalls. • Experience with VPN, authentication servers, DNS, proxy, F5 Load Balancers, Infoblox, and network management platforms will be advantageous. • Experience in network monitoring, performance management, capacity planning, and availability management. • Good knowledge of backup/recovery, High Availability (HA), Disaster Recovery (DR), and Business Continuity Planning (BCP). • Experience managing network-related projects and vendors, including RFQ/RFP preparation, implementation, and project coordination. • Strong troubleshooting, analytical, and problem-solving skills. • Good understanding of ITIL and change management processes. • Strong communication, interpersonal, and stakeholder management skills. • Meticulous, proactive, self-motivated, and able to work independently under pressure. • Willingness to participate in 24x7 on-call support and after-hours emergency support when required. • Relevant certifications such as CCNP or higher are preferred. CCIE, CDCP, CISSP, or ITIL certifications will be advantageous. Candidates with less than 5 years of relevant experience will not be considered. Working Hours: 9:00am to 6:00pm (Mondays to Fridays) 24x7 on-call support may be required based on operational requirements.