Job Title: CS Core Enginner -SME
Location: Rwanda
Contract Period: 3 Months

Job Description

The primary function of this role is to provide expert-level support of Ericsson circuit switched core nodes. Highly specialized in providing technical and proactive support to the customer network. Escalate and Liaise with Vendors and service providers for 4th-line support until resolution. Support the provision of accurate reporting on the network to Ericsson teams, Vendors, and Customers, supplying technical/statistical data as required.

Key Tasks and Responsibilities

• Perform maintenance, daily health checks, and troubleshooting of all circuit switched core nodes (MSC, MGw, HLR-FI, CUDB and any other CS core node).
• Designing and trouble-shooting Core Network platforms and applications
• Interacts with multiple Engineering, Operations and QA teams in designing robust network solutions.
• Define technical requirements for core network elements and work effectively in designing solutions on existing products.
• Support deployment of major hardware and software upgrades, working with the project team to ensure seamless operation as the network architecture evolves.
• Work with the performance teams to assess the performance and capacity of the platforms and drive corrective actions with stakeholders to resolve any identified degradation.
• Identifying improvements in processes, tools and products and establishing good working relationships with support organizations.
• Experience working on any of the circuit-switched core network elements such as MSC, MGw, CUDB, HLR/HSS, etc, with vast use of protocol analyzers and troubleshooting tools such as Wireshark.
• Perform required maintenance, expansion, and upgrade of H/W & S/W and troubleshoot on escalation.
• Integrate new network communication devices, topologies, hardware and protocols into existing network management systems continuously.
• Liaise with network engineers within the organization, including MPLS units, charging units, and radio access units, ensuring that all faults are resolved.
• Responsible for providing input to the planning team to ensure robust design and redundancy, performance tracking, and statistical KPI analysis for the long-term strategic evolution of the network.
• Maintain End-to-end internal Data security on the CS Core Network.
• Continual Constructive criticism of existing infrastructure with visible plans for improvement.
• Ensure key deliverables, such as MTTR availability, are met.
• Document user support activity, such as system problems, corrective actions, resolution status and completed equipment installations.
• Interpret Customers' business needs and articulate/demonstrate the company’s ICT services.
• Troubleshooting circuit switching network, signalling, telecom standards and implementation and maintenance for CS Core equipment
• Physical troubleshooting of CS Core nodes and involved in changing specific hardware parts if any fault is developed

Experience, Skills, and Qualifications:

• BSC/HND within Electrical Engineering, Telecommunication Engineering, Computer Science, Computer Engineering, Physics, or equivalent.
• Relevant certifications like CCNA, CCNP, CCIE, MTA, MCSA, etc, are an added advantage.
• Strong understanding of general CS Core solutions for 2G, 3G and LTE
• Knowledge of CS Core Nodes
• Understanding of dimensioning guidelines for CS Core Nodes
• GPRS, WCDMA, LTE Media and Signaling Interfaces (including 3GPP and non-3GPP)
• Strong knowledge of wireless technologies (call flow), related protocols and telecommunication standards like 3GPP.
• Strong knowledge of Linux scripting.
• Ability to multitask and cope with a dynamic environment where priorities are constantly revised to keep pace with a highly competitive industry