Role

Job Details

ZTE Uganda, under the MS Project, is seeking an experienced Fixed-Lines High-Level Support Engineer to oversee the operation, maintenance, optimization, and deployment of Fixed Line Voice, IMS Core, SIP Trucking, Hosted PBX, and Unified Communications services. The successful candidate will play a critical role in ensuring service reliability, high availability, and operational excellence across both Cloud-based and Legacy voice platforms.

• Location: Kampala, Uganda
• Reports to: Fixed Lines HLS Manager
• Employment type: Full-time

Key Duties and Responsibilities

• Manage and support Huawei IMS Core platforms including IMS, HSS, MGCF, SBC, SPG, iGWB/CDR, and associated legacy voice systems.
• Administer and optimize fixed voice services, including SIP trunks, hosted PBX, PSTN emulation, and enterprise voice solutions.
• Provision, activate, test, and troubleshoot voice services for enterprise customers.
• Support Webex calling, unified communications, BroadWorks/SP, and third-party voice application platforms.
• Monitor network performance, analyze alarms, and proactively resolve service-impacting issues.
• Perform advanced troubleshooting of SIP signaling, call routing, voice quality, media gateway, and subscriber provisioning issues.
• Support migrations from legacy PSTN, E1/PRI, and NGN platforms to IMS-based services.
• Conduct protocol analysis using tools such as Wireshark and perform Root Cause Analysis for service incidents.
• Ensure compliance with change management, operational procedures, and service-level agreements.
• Manage equipment licensing, platform upgrades, configuration changes, and capacity expansion activities.

Qualifications, Skills and Requirements

• Bachelor's Degree in Telecommunications Engineering, Electrical Engineering, Electronics Engineering, Computer Engineering, or a related field.
• Minimum 3-5 years' experience in Fixed Voice, IMS, or Core Network Operations within a telecommunications environment.
• Hands-on experience with Huawei IMS infrastructure and Fixed Voice platforms.
• Strong knowledge of IMS, NGN, Softswitch, MGW, Hosted PBX, SIP Trunking, and Enterprise Voice solutions.
• Strong understanding of SIP, H.248, RTP, TCP/IP, UP, and telecom signaling protocols.
• Experience supporting SBC platforms, voice gateways, and Unified Communications services.
• Good understanding of IP networking concepts including routing, switching, and network integration.
• Strong troubleshooting and analytical skills.
• Excellent Root Cause Analysis and documentation capabilities.
• Customer-focused with strong service delivery orientation.
• Excellent communication and interpersonal skills.
• Ability to work under pressure and manage multiple priorities.
• Innovative, results-driven, and proactive mindset.
• Strong teamwork, stakeholder management, and vendor coordination skills.