Senior Engineer, Circuit Switch Core at T2 (Formerly 9Mobile)

Job Summary

• Support all CS core network operation and maintenance activities to ensure required availability.
• Coordinate all CS core related troubleshooting, fault analysis and performance improvement measures - preventive maintenance.
• Coordinate all acceptance testing for all CS core node integrations.
• Oversee all CS core network audit and performance improvement/maintenance activities on the network.
• Ensure preventive measures are implemented to avert network downtime and service disruption on CS core network elements and links.
• Ensure all vendor activities are in line with all agreed SLAs & KPIs.

Principal Functions

• Maintain maximum availability and reliability of the entire CS core network
• Improve mean time to repair (MTTR) on all CS core network related faults and complaints
• Promptly implement all interconnects and service requests with partners
• Implement software upgrades, patch installations and expansion activities on all CS core network nodes
• Support NOC/Field operations teams in all CS core related escalations
• Review all new CS core related features and its impact on existing network
• Ensure regular network performance improvement via key KPI's such as LUSR, PSR, AUTHSR, CSR
• Regularly review B number analysis table across all CS core systems.
• Enforce strict conduct of Quarterly audit of all CS core node configurations and ensure implementation of all relevant recommendations
• Ensure all change requests are implemented timely and accurately by Vendor
• Carry out quarterly backup and restore tests on all CS core network elements.
• Continuously review all CS core operations frameworks, make recommendations for improvement and implement approved initiatives to ensure enhanced network performance.
• Recommend and implement strict measures to control fraudulent high usage activities of illegal inbound/outbound roamers on the network.
• Integration, daily operations and maintenance on MSC/ HSS/ MGW/ STP/ SPS/ SBC/ ITSC/ U2020/other CS core nodes.
• Ensure proper documentation of operations on all CS core network systems
• Maintain snag/fault lists and follow up with vendor on clearance.
• Carry out all integrations and implementations on CS core nodes.
• Analyse performance reports and proactively resolve core network challenges.
• Supervise the implementation of software upgrades; file system upgrades; and hardware replacement on core network.
• Specify and review critical CS core performance measurement counters.
• Lead the troubleshooting of core network operations challenges and create solutions.
• Produce policies and procedures for managing and controlling managed services team.
• Perform periodic reconciliation of HLR profiles and templates in line with business requirements.
• Audit announcements and tone files between the IN platform and core network nodes.
• Perform other tasks as may be assigned by the Manager Core & Datacom.

Educational Requirements

• First Degree or equivalent in Electrical / Electronic Engineering, Computer Engineering and / or any other relevant discipline.
• Minimum of four (4) years experience in Telecoms.

Knowledge:

• Excellent communication and interpersonal skills.
• Excellent problem-solving skills.
• Good time management skills.
• Good reporting skills.

Behaviour:

• Passion for Excellence
• Integrity
• Empowering people
• Growing people
• Teamwork
• Customer Focus