Network Infrastructure Specialist

Role overview

The position focuses on planning, deploying, and supporting network infrastructure that delivers strong availability, performance, and protection. The work spans LAN/WAN environments, wireless connectivity, VPNs, and VNETs, with an emphasis on keeping systems stable and secure.

Key responsibilities

• Plan, configure, and roll out network infrastructure across LAN/WAN, wireless, VPN, and VNET environments.
• Track network health, investigate faults, and carry out routine checks to maintain service quality.
• Apply and maintain security controls such as firewalls, VPNs, intrusion detection/prevention, and network segmentation.
• Work with security and infrastructure platforms including AD, MFA, Clearpass, ESXi, PMP, PIM, PAM, ELA, SIEM, SEM, SEP, and SCOM.
• Tune traffic flow and support capacity planning to keep the network efficient as demand grows.
• Create and maintain clear records of network layouts, settings, and troubleshooting steps.
• Coordinate with external vendors for support, upkeep, and purchasing needs.
• Guide and support junior colleagues with technical direction when needed.

Requirements

• A bachelor’s degree in Computer Science, Information Technology, Networking, or a similar discipline is expected; equivalent practical experience may also be accepted.
• At least 6 years of practical experience in designing, implementing, and administering network infrastructure.
• Hands-on exposure to enterprise networking hardware such as routers, switches, firewalls, load balancers, and wireless access points.
• Solid understanding of core networking protocols and technologies, including TCP/IP, BGP, OSPF, DNS, DHCP, VPN, VLANs, MPLS, and QoS.
• Industry certifications such as CCNA, CCNP, CCIE, CompTIA Network+, JNCIA, or similar are preferred.
• Experience using monitoring and diagnostic tools such as Wireshark, SolarWinds, and PRTG.
• Working knowledge of cloud networking in AWS and Azure, plus hybrid infrastructure setups.
• Exposure to SD-WAN, VPN technologies, and data centre environments including VMware NSX, Hyper-V, and ESXi.
• Ability to use scripting or automation tools such as Python and Ansible is an advantage.
• Strong analytical, communication, and organisational skills are required.

Additional information

This role involves close collaboration with cross-functional teams and external vendors, along with proactive monitoring and ongoing documentation to keep network systems reliable and secure.