Problem Manager - Core Job at Ericsson (Noida)

Job Description

We are seeking an experienced Problem Manager to own and drive root-cause and preventive actions across our Core Network (CS Core & Packet Core) and Core Network Infrastructure. The role will lead RCA and trend analysis for major and recurring incidents, coordinate resolution across operations, vendors and engineering, and deliver continuous service improvements to enhance network stability and customer experience.

Job Responsibility

Own the end-to-end Problem Management lifecycle for Core Network domains (CS Core & Packet Core)
Lead root cause analysis (RCA) for major and recurring incidents and ensure permanent corrective actions are implemented
Coordinate cross-functional resolution activities with L2/L3 operations, engineering teams, vendors and external stakeholders
Track and analyze incident trends, identify systemic issues, and propose preventive measures and service improvement plans
Ensure problem resolution and follow-up activities meet agreed SLAs and OLAs
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
Provide technical guidance and mentorship to L2 operations engineers to ensure consistent processes and high-quality outputs
Maintain dashboards, KPIs and management updates for problem reporting and status tracking
Support continuous improvement and operational excellence programs

Requirements

7–14 years’ experience in Telecommunications
5–8 years of strong domain experience in CS Core and/or Packet Core
Solid knowledge of ITIL Problem Management processes and operational best practices
Clear understanding of 3GPP standards and signaling/protocols including SIP, Diameter, BICC, SIGTRAN, CAMEL, MAP, etc.
Strong understanding of 2G/3G/4G core network nodes, protocols and signalling flows
In-depth experience with voice core scenarios and signaling flows
In-depth experience with data/core packet scenarios and signaling flows
Hands-on experience with voice core nodes (e.g., MSC, MGW, STP, UDC, APG)
Strong knowledge of packet core nodes (SGSN/MME, GGSN/EPG, SAPC/PCRF) and surrounding nodes (IMS, DNS, charging systems)
Familiarity with roaming call/data flows and GRX architecture
Understanding of IMS call flows and 5G (NSA & SA) architectures and call flows
Excellent IP networking background and MPBN knowledge
Strong Linux skills and familiarity with virtualization, cloud NFVI/NFVO and cloud infrastructure
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

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Problem Manager - Core

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