• Drive both internal and external escalates in outage situation. • Makes sure that notifications are sent in a timely manner. • Basic troubleshooting including replacing boards and cards of telecom equipment in case of faults and alarms. • Performing preventive maintenance inspections of telecom, power and other equipment. • Controlling environment conditions at the MSC and power equipment room. • Keeping record for routing system inspections and alarms. • Alarm management including informing respective personal in case of faults during shift. • 24h alarm and real-time network performance monitoring use various monitoring tools. • Escalation of faults in network to responsible divisions. • Manage site access and security. • Coordinate planned maintenance activities within live network. • Preparation of reports related to network status and shift operation activities. • Prepare network KPI report (Traffic per BSC, CSR per BSC, Trunk load, site down time report, alarm report). • To be available working in shift schedule including weekend or holiday. • Complete all other activities assigned by the supervisor as per management decision

• Bachelor degree in Telecommunication, IT, Electrical and Energetic Engineering; • Good in English and Khmer, both written and spoken • Basic understanding knowledge in GSM/UMTS Network fundamentals, theories and operations • Understanding basic concept of SS7 signaling and signaling call flow in core network • Basic understanding IP routing protocol • Minimum one (1) to two (2) years’ work experience in relevant field • Experience with Huawei OCS is prefer.