SME Operations Assurance – Telecom Charging Platforms

About the role

The Subject Matter Expert (SME) provides operational support, service assurance and continuous improvement for Ericsson's telecommunications charging platforms. The role ensures the availability, accuracy and reliability of online and offline charging services across mobile, broadband, IMS and enterprise networks.

Key responsibilities

• Provide expert support for Online Charging Systems (OCS), offline charging, balance management, rating, OCC, SDP, billing, mediation and charging gateways.
• Monitor services, interfaces, transactions, alarms, capacity, performance and latency for prepaid, postpaid, hybrid and roaming services.
• Troubleshoot charging failures, delayed updates, incorrect balances and Diameter interface issues (Gy, Ro, Gx, Sy).
• Define monitoring requirements, thresholds, dashboards and event‑correlation rules to detect customer‑impacting issues early.
• Lead major‑incident resolution, root‑cause analysis, post‑incident reviews and corrective actions.
• Maintain runbooks, troubleshooting guides and knowledge articles.
• Review and support changes to charging nodes, Diameter routing, product configuration and network policy, ensuring proper testing and validation.
• Identify automation opportunities such as health‑checks, KPI monitoring, incident correlation and event‑driven remediation.

Required profile

• Bachelor’s degree in Engineering (IT, Telecommunications or related) with 5+ years of direct experience on telecom charging platforms.
• Strong knowledge of the Diameter protocol and practical experience troubleshooting Gy and/or Ro interfaces.
• 3–5 years of operations assurance or production support experience, including incident management, problem management and SLA compliance.
• Proven ability to analyse logs, traces, alarms and transaction records, assess impact and make technical decisions under pressure.
• Excellent documentation, knowledge‑management and coaching skills with a continuous‑improvement mindset.

Required skills

• Online Charging System (OCS), Offline Charging, Balance Management, Rating, OCC, SDP, Billing, Mediation.
• Diameter protocol – Gy, Ro, Gx, Sy interfaces and related transaction flows.
• Monitoring and alerting tools, dashboard creation and event‑correlation rules.
• Incident management, root‑cause analysis and change‑control processes.
• Automation scripting for health‑checks, KPI monitoring and remediation.