Join our Team
What you will do:
Problem Manager - RAN own the end-to-end Problem Management lifecycle for RAN Network domains (All technology).
- Strong understanding of 2G/3G/4G/5G RAN architecture, call flows, interfaces (Abis, Iu, S1, X2, NG), and typical failure modes.
- Deep knowledge of RAN KPIs & NWA (CSSR, CDR, CDR PS, DCR, throughput, RRC/RAB/ERAB setup SR, VoLTE KPIs, 5G NSA/SA KPIs) and how they link to customer experience and SLAs.
- Practical knowledge of vendor solutions used in your network (Ericsson, ZTE, Huawei, etc.) and their alarm models / counters.
- Hands-on with ENM / One-FM / PMGCP (or equivalent OSS/PM/ FM tools) for alarm, performance and configuration management.
- Ability to work with Excel/Power BI/Scripts (e.g. Python, SQL basics) to analyze repetitive cases and validate improvement drives.
- Clear grasp of ITIL Problem Management lifecycle: detection, logging, categorization, RCA, corrective & preventive actions, validation, closure.
- Experience in both Reactive (post-incident RCA, fix to prevent recurrence) and Proactive Problem Management (trend analysis, worst offender reduction, chronic site drives, NWA improvement initiatives).
- Ability to define and track improvement drives alarm reduction, TT reduction, availability improvement with concrete baselines and targets.
- Working knowledge of IPRAN/transport (MW, DWDM, IP aggregation) and how transport issues manifest in RAN KPIs and alarms (LOS, RSL degrade, packet loss, congestion).
- Awareness of Cloud / virtualized RAN / Open RAN environments and implications on incident & problem management (multi-vendor, cloud-native, far-edge, SMO, O-RU).
- Familiarity with automation use cases for HC, performance checks, and change execution (API-based touch-free changes, automated PM/HC runs, Auto-TT).
- Awareness of AI/ML in RAN automation for anomaly detection, optimization and proactive problem identification (trend-based issue prediction).
- Ability to translate RCAs into risk register entries, improvement actions, and governance dashboards (e.g., monthly PM governance, NWA weekly dashboard, alarm reduction KPIs).
- Understanding of SLA/LD framework and how problem management drives reduction of penalties and operational risk.
- Drive preventive and corrective maintenance initiatives to reduce incident recurrence.
- Review and validate network changes to identify and mitigate operational risks.
- Perform network configuration audits and support initiatives to improve service stability.
- Produce and maintain problem records, knowledge articles, runbooks and best-practice documentation.
- Lead post-incident reviews and major incident follow-ups; drive remedial projects where necessary.
- Maintain dashboards, KPIs and management updates for problem reporting and status tracking.
You will bring:
- 38 years experience in Telecommunications, with 58 years of strong domain experience in RAN Network
- Solid knowledge of ITIL Problem Management processes and operational best practices.
- Clear understanding of 3GPP standards and signaling/protocols for RAN system
- Strong understanding of 2G/3G/4G RAN network nodes, protocols and signalling flows.
- In-depth experience with all scenarios and signaling flows.
- Understanding of Voice and Data call flows and 5G (NSA & SA) architectures and call flows.
- Hands on experience on KPI troubleshooting for all RAN technologies.
- Strong analytical, troubleshooting and presentation skills.
- Excellent stakeholder management, written and verbal communication skills.
- Self-driven, proactive, and able to lead complex cross-functional problem resolution.
