Job Opportunity:
A Senior Network Specialist will be responsible for overseeing the design, deployment and delivery of the network infrastructure for a large multi-storey building. This role is ideal for an experienced network engineer with extensive expertise in Cisco and fibre WAN technologies who can manage complex infrastructure projects.
Key Responsibilities:
* Conduct thorough site surveys, capacity planning and discovery activities for multi-floor environments to identify optimal MDF/IDF placement, riser provisioning and cabling strategies.
* Develop Layer 2/3 architecture solutions using Cisco Catalyst/Nexus: VLAN design, VRFs, inter-floor routing, aggregation and HA topologies.
* Design resilient campus switching and routing with PoE for APs/telephony and QoS for critical services.
* Implement secure, role-based access across staff, contractors, guests and IoT/OT devices using Cisco ISE.
* Deploy automation tools such as Catalyst Center / DNA Center for device onboarding, assurance and operational consistency.
* Specify and validate fibre and copper infrastructure: backbone design, patching, labelling, rack elevations and comms-room requirements.
* Develop migration, staged cutover and rollback plans ensuring minimal service disruption.
* Undertake acceptance testing, validation and performance tuning across wired and wireless domains.
* Produce comprehensive documentation including design packs, diagrams, test logs, commissioning certificates and runbooks.
* Engage with internal stakeholders, vendors and delivery partners to align project timelines, budgets and outcomes.
* Lead technical workshops and deliver structured handover and knowledge transfer to operational teams.
* Execute the fibre-optic WAN strategy including vendor delivery management, resilience auditing and integration with LAN.
Deliverables:
* Target architecture and design pack (network, cabling, rack drawings).
* Procurement-ready specifications and vendor evaluation criteria for LAN/WAN fibre works.
* Fibre WAN audit report including asset map, test results, risk register and remediation plan.
* Migration roadmap and cutover/rollback schedules.
* Commissioning and test reports (wired/wireless), including heatmaps and tuning logs.
* Handover package: as-built configurations, training materials, runbooks and post-cutover support arrangements.
Required Skills and Qualifications:
1. CCNA minimum, CCNP or equivalent preferred.
2. 5+ years delivering Cisco network projects (Catalyst, Nexus, ISE, DNA/Catalyst Center) in multi-floor or multi-site environments.
3. Strong Layer-3 architecture expertise: OSPF, EIGRP, BGP and HA topologies.
4. Proven experience with structured cabling and fibre backbones, PoE and comms-room design.
5. Demonstrated WAN fibre delivery and audit experience (OTDR/LLD testing, resilience planning).
6. Strong cutover, acceptance testing and post-deployment tuning experience.
7. Proficiency with packet analysis and wireless validation tools (Wireshark, tcpdump, heatmapping).
8. Strong documentation, stakeholder engagement and vendor management skills.
9. Desirable Expertise:
* CCNP/CCIE or equivalent advanced certification.
* SDA/SD-Access, VXLAN/EVPN or Nexus/data-centre integration.
* High-density Wi-Fi and IoT/OT/BMS segmentation.
* Experience delivering under public-sector procurement and compliance frameworks.