Senior Engineer Packet Core
Confirmed on the employer's own hiring board on Oct 14, 2026. First seen by Alion on Oct 7, 2026. Ericsson scores B on the Alion truth index.
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About This Opportunity
We are looking for a Senior Engineer to join our Packet Core Performance team in Noida, India. In this role, you will be the technical backbone supporting PS Core network performance for our customers. You'll combine deep technical expertise with hands-on delivery to ensure optimal network performance, seamless acceptance testing, and exceptional customer coordination. This position requires a proactive mindset, readiness for 24/7 support, and proven expertise in packet core technologies, 5GSA, IMS/VoLTE, and leading vendor architectures. We value technical competence, creativity, trust, and collaboration as we work together to build a better user plane experience.
What You Will Do
- Provide comprehensive PS Core performance support and technical guidance to customers
- Design, analyze, and optimize packet core network performance across 5GSA, EPC, VoLTE, and VoWiFi solutions
- Monitor, troubleshoot, and resolve network performance degradation and data complaint spikes in real-time
- Conduct detailed analysis of packet core performance KPIs (ASR, PDP, VoLTE PSR, CSFB, SRVCC, TAU, Service Req SR, Bearer SR, RAU, X2O, Gx, Gy) and develop improvement plans
- Analyze capacity KPIs (SAU, License, Throughput, CPU) and recommend optimization strategies
- Execute acceptance testing and customer coordination activities with full technical documentation and training support
- Prepare and present comprehensive technical analyses and performance reports to customers
- Participate in troubleshooting initiatives during network performance challenges
- Leverage network tools and trace analysis to identify root causes and performance bottlenecks
- Contribute to process improvements and automation initiatives to reduce manual effort
The Skills You Bring
- 8-12 years of relevant experience in packet core network performance and support
- Bachelor's degree in Engineering or equivalent qualification
- Hands-on, working-level expertise with vendor-specific packet core nodes (AMF, SMF, SGSN-MME, GGSN, SGW/PGW, EPDG, DRA, HSS)
- Product-level knowledge of Ericsson and Nokia architectures (minimum two vendors)
- Advanced understanding of 5GSA, EPC, VoLTE, and VoWiFi solutions with call flow knowledge
- Comprehensive knowledge of packet core surrounding nodes (AMF, SMF, PCRF, AAA, DNS, Charging) and their PM reporting tools
- Expert-level ability to analyze and develop improvement plans for performance and capacity KPIs
- Strong grasp of critical parameters and their impact on packet core and VoLTE network KPIs at counter level
- Proficiency in SIP and Diameter interfaces with error code interpretation
- Advanced skills in using network tools, trace analysis, and data interpretation
- Familiarity with virtualization and cloud concepts; hands-on experience with virtual nodes is a plus
- Knowledge of automation technologies to streamline operations
All academic credentials must be from recognized and accredited institutions and are further subject to verification.”
Why join Ericsson? At Ericsson, you´ll have an outstanding opportunity. The chance to use your skills and imagination to push the boundaries of what´s possible. To build solutions never seen before to some of the world’s toughest problems. You´ll be challenged, but you won’t be alone. You´ll be joining a team of diverse innovators, all driven to go beyond the status quo to craft what comes next.
What happens once you apply?Click Here to find all you need to know about what our typical hiring process looks like.Encouraging a diverse and inclusive organization is core to our values at Ericsson, that's why we champion it in everything we do. We truly believe that by collaborating with people with different experiences we drive innovation, which is essential for our future growth. We encourage people from all backgrounds to apply and realize their full potential as part of our Ericsson team. Ericsson is proud to be an Equal Opportunity Employer. learn more.
Primary country and city: India (IN) || Noida
Req ID: 792367