Senior CS Core Planning Engineer

About the role

We are seeking a Senior CS Core Planning Engineer to join a leading Chinese technology company’s Islamabad office. The role focuses on planning, capacity analysis, design and optimisation of the circuit‑switched (CS) core network.

Key responsibilities

• Monitor network utilisation, traffic trends and forecast capacity across CS core elements.
• Analyse high‑level and low‑level designs for MSC, STP, SVC and HLR products.
• Recommend and implement optimisation initiatives to improve efficiency and service quality.
• Manage CapEx planning, budget forecasting, BOM preparation and technical tender evaluations.
• Coordinate with vendors, contractors and internal teams for solution evaluation, project integration and new node acceptance.
• Perform health‑check reporting, KPI analysis, alarm handling and root‑cause analysis, including major incident reviews.

Required profile

• 5+ years of experience in core network engineering, specifically CS domain.
• Strong knowledge of CS call flows and scenarios defined by 3GPP, GSMA, IEEE and ETSI.
• Proven troubleshooting ability using tools such as Wireshark, IRIS and Tektronix.
• Effective communication with technical stakeholders at all levels.

Required skills

• Wireshark, IRIS, Tektronix troubleshooting tools.
• CS nodes: VMSC, GMSC, SBC, OSS, HSS.
• Protocols: SCCP, BSSAP, RANAP, SS7, SIGTRAN, M3UA, MTP3.
• Standards: 3GPP, GSMA, IEEE, ETSI.