Senior Specialist (Network Infrastructure)

This position is posted by The Hong Kong Polytechnic University (PolyU). Job Ref: 261104001-IE 學系/部門：Information Technology Services Office Category: Management / Professional 截止日期：18 November 2026 Source: PolyU Careers Apply: https://jobs.polyu.edu.hk/job_detail.php?job=261104001 ---

(Ref. 261104001-IE)

Duties

The appointee will join a collaborative team responsible for the development, support and management of the campus network infrastructure. The main duty areas include, but not limited to, system/infrastructure/service design, service and project management, and service provisioning. He/She will be required to:

(a) lead projects related to the design, implementation, and support of campus network infrastructure, with focusing on wireless networks, wired networks, and network security for the campus network;

(b) handle day-to-day network operations, maintenance, troubleshooting and incident handling to ensure reliable and high-quality Wi-Fi and wired services, including configuring of network device, cabling work and construction site work;

(c) stay informed of the latest network technologies and recommend enhancements to meet the University’s needs;

(d) collaborate with internal teams and external contractors on network installation, maintenance and Proof of Concepts (PoCs);

(e) perform scheduled maintenance tasks during non-office hours if required;

(f) maintain standardised documentation, including operational manuals, procedural documents and network diagrams;

(g) participate in the Duty Engineer on-call roster, responding and attending to network issues, outages and security incidents promptly within agreed service levels and in a timely manner;

(h) communicate effectively with management and business stakeholders; and

(i) perform any other duties as assigned by the Director of the Office or his delegates.

Qualifications

Applicants should have:

(a) a recognised degree in Computer Engineering, Electronic Engineering, Information Technology or a related discipline;

(b) at least five years of relevant post-qualification work experience in operating various brands of core network systems in campus or medium to large organisations;

(c) at least five years’ experience in operating Wi-Fi systems, including experience in operating hundreds of APs from different brands at the same time (preferably Aruba products), in campus or large organisations;

(d) extensive experience in planning, designing, migrating and implementing routing and switching network in campus or large organisations;

(e) proven experience and expertise in managing BGP and OSPF networks;

(f) familiarity with operating switch stack and Wi-Fi products from various vendors, as well as Layer 2 and Layer 3 protocols, including but not limited to: 802.1D, 802.1W, 802.1S, LACP, MLAG, 802.1Q, 802.1X, ARP, Dynamic ARP Inspection, DHCP, DHCP Snooping, PVST, MACSEC, LLDP, VRRP, PIM, IGMP, DSCP, IPSec, NAT, UDLD, Storm Control, IP Source Guard, ERPS, etc.;

(g) proven experience in network infrastructure design and network systems administration, with hands-on knowledge of multi-vendor technologies including Wireless LAN, firewalls, VPNs, and load balancers;

(h) a forward-thinking mindset to optimise network systems for long-term success;

(i) strong problem-solving skills with an analytical mind, and good understanding of and familiarity with the technologies abovementioned;

(j) excellent interpersonal and communication skills as a team player;

(k) the ability to communicate effectively with various parties on projects and day-to-day support issues; and

(l) proficiency in both written and spoken English and Chinese, including Putonghua.

Conditions of Service

A highly competitive remuneration package will be offered. Initial appointment will be on a fixed-term gratuity-bearing contract. Re-engagement thereafter is subject to mutual agreement.

The closing date for application is 18 November 2026.