Technical Authority CS Core📣 Job Ad

About the Role

Ericsson is seeking a Technical Authority Expert – CS Core to join its Managed Services deliveries, operating within the Ericsson Operations Engine framework. This role is crucial for providing technology leadership, deep domain expertise, operational support, and driving automation within the Core domain to ensure the efficient operation of CS Core platforms and services. The position is based in Riyadh, Saudi Arabia, and is a full-time opportunity for professionals with 5-10 years of relevant experience.

Key Responsibilities

• Provide technical authority and domain expertise for CS Core platforms and services.
• Perform daily operation and maintenance for CS Core network elements including MSC, MGW, HLR, IP-STP, HSS, UDC, DSC/EIR/PG/UPG, Backup Servers, CCDM, CCRC, CCSM, SC, EDA2, NeLS, and related platforms.
• Conduct daily health checks, quarterly audits, and special event audits across all managed CS Core nodes.
• Ensure smooth operation of CS Core services through proactive monitoring, troubleshooting, and performance optimization.
• Provide assurance support, including impact analysis for change and business requirements, and support for complex change execution.
• Support change rollback and fallback decision-making processes.
• Provide incident management support, including complex and critical incident resolution and service restoration.
• Initiate problem management activities and third-level functional escalations.
• Perform root-cause analysis and drive corrective and preventive actions.
• Coordinate with vendors, suppliers, field services, and customer teams during incident resolution.
• Manage, implement, and verify configurations across all CS Core nodes for consistency, reliability, and compliance.
• Support software lifecycle management, including upgrades, patch management, and package implementation.
• Analyze software update impacts and provide implementation recommendations.
• Support standard change execution, feature implementation, and configuration management.
• Maintain on-demand performance of core network components and services.
• Analyze KPI trends, degradation indicators, and performance metrics.
• Drive customer experience improvement initiatives through operational analysis and service optimization.
• Support activities including KPI analysis, service quality improvements, and issue resolution.
• Ensure all 5GC and CS Core nodes comply with customer security requirements, regulatory obligations, and operational standards.
• Perform configuration and security audits to verify compliance with internal policies and external regulatory requirements.
• Define and coordinate preventive maintenance and security maintenance activities.
• Support Analytics & Automation teams by identifying automation opportunities and operational improvement initiatives.
• Assist in defining automation requirements and validating developed automation use cases.
• Support the development and maintenance of automated service delivery methodologies.
• Perform trend analysis to proactively identify potential failures and improve restoration times.
• Perform end-to-end tracing across protocols and interfaces to support fault isolation and troubleshooting.
• Analyze signaling flows, network traces, and service behavior across CS Core environments.
• Support inter-domain troubleshooting activities involving Core, IMS, PS Core, IP, and Cloud domains.

Qualifications and Requirements

• Degree in Engineering, Telecommunications, Computer Science, Electronics, or an equivalent field.
• 5 to 10 years of experience within the telecommunications industry.
• Strong operational experience within CS Core, Mobile Core, or Managed Services environments.
• Experience supporting large-scale telecommunication operator networks is preferred.

Required Skills

• Technical Competencies: Strong expertise in CS Core technologies including MSC, MGW, HLR, IP-STP, HSS, UDC, DSC/EIR, and related network elements. Deep understanding of telecom network architecture across 2G, 3G, 4G, and 5G technologies. Profound knowledge of mobile core networks, telephony switching principles, signaling, call control, digit analysis, and voice services. Experience performing protocol tracing and end-to-end troubleshooting across telecom interfaces and services. Strong understanding of KPI formulas, KPI degradation analysis, and troubleshooting methodologies. Knowledge of software lifecycle management, patching, upgrades, and configuration management. Experience with multivendor telecom environments and operational support models. Good understanding of automation, analytics, Machine Learning, Artificial Intelligence, and Cloud technologies.
• Behavioral Competencies: Strong leadership and cross-functional coordination capabilities. Excellent communication and stakeholder management skills. Strong analytical, troubleshooting, and problem-solving abilities. Proactive and results-oriented mindset. Ability to work effectively under pressure in critical operational environments. Flexible and adaptable to changing operational demands. Strong collaboration and knowledge-sharing mindset.
• Language: Fluent in English.

Work Environment

This is a full-time position based in Riyadh, Saudi Arabia. The role operates within Ericsson's Managed Services deliveries, contributing to building solutions and advancing telecommunications technology.