Assistant Maintenance Manager

In this position, you will:

• Manage and oversee all Support and Maintenance Services activities about Core Network domain System / RAN / MCX, ensuring full compliance with contract Service Levels.
• Take full responsibility for all Core Network / RAN / MCX maintenance issues, from fault receipt through to resolution and closure, ensuring all Critical, Major, Minor and General Inquiry faults are resolved within required timeframes.
• Provide 7×24 on-site technical support for network incidents escalated from Maintenance Support Specialists and/or the client, including complex core network failures, signaling issues, service disruption, interworking problems, and capacity-related issues.
• Identify and propose resolutions for all network technical problems, including root cause analysis of recurring core faults, KPI degradation, capacity bottlenecks, and interoperability issues with external networks.
• Oversee network preventive maintenance execution and compliance with the Maintenance Plan.
• Manage network system upgrades, patch deployments, service feature activations, rectifications, and capacity expansions, coordinating with multiple parties.
• Lead network disaster recovery management, including disaster recovery plan maintenance, drill execution, and ensuring core network resilience and recovery capability for mission critical police operations.
• Ensure network documentation compliance including incident records, maintenance reports, O&M manual updates, OAM procedures, configuration records, capacity planning studies, and monthly maintenance services reports.
• Provide technical mentorship and guidance to Network Maintenance Support Specialists and client In-house Maintenance Team, building tier-1 and tier-2 core network technical capability through training and mentorship programs.

To be successful in this position, you should meet the following requirements:

• Possess at least one Bachelor’s degree in Electronics or Telecommunications or Information Engineering or equivalent.
• At least 5 years of operation, administration and maintenance hands-on experience in Dedicated Core Network systems/RAN/MCX. Experienced in deploying 4G or 5G technologies, e.g., 5GC, IMS core, signaling, and core network element operation and troubleshooting
• Good Command of written & spoken English, Cantonese and Mandarin.
• Strong analytical and problem-solving skills, with proven ability to identify root causes and propose effective resolutions for complex network technical problems.
• Strong knowledge of Network Operations & Maintenance (O&M) procedures
• Proven experience managing and overseeing Network maintenance activities, including remedial and preventive maintenance programs.
• Proficient in Network system upgrades, capacity expansion planning, and cross-party coordination.
• Experienced in managing Network documentation, maintenance reporting, capacity planning, and ensuring OAM and contractual compliance.
• Ability to provide 7×24 on-site technical support for escalated Network incidents and guide Maintenance Support Specialists and in-house staff in complex troubleshooting.
• Experience with dedicated networks for public safety or mission critical communications is preferred.