• To plan, design, develop, and maintain Circuit-Switched Core network • To plan, design, develop, and maintain International SCCP signaling network • To plan, design, develop, and maintain VoIP/SIP network • To identify and make recommendations to ensure the availability of the CS network through design, modification, and communication with vendors and implementers • To work closely with other departments (Network Planning and Rollout, Quality Assurance, Billing, IB, BI, RA, RAN Core, Field Operations, BO, etc.) in providing end‐to‐end CS Services to the all mobile subscribers • To guide & drive initiatives on ensuring Availability and Security of CS Networks • To identify issues within the CS Networks both proactively and reactively • To manage and optimize the Quality of Service (QoS) of Packet Core and Datacom networks • To handle and resolve customer complaints timely • To work closely within and cross-functional teams in terms of reporting and troubleshooting.

• Possess through understanding of signaling protocols such as SIP, SIGTRAN, SS7, CAP, MAP, BSSAP, RANAP, stc. • Posses good understanding of IP and computer networking • Posses good understanding of VAS services • Dynamic, analytical, team-spirit, customer-oriented, and able to work under pressure • Performs other tasks as required by superiors • Possess good English competency • 3+ years experiences in Telecommunication or relate areas.