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
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: 788238
Skills Required
- 8-12 years of relevant experience in packet core network performance and support
- Bachelor's degree in Engineering or equivalent
- Hands-on 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
- Knowledge of packet core surrounding nodes (PCRF, AAA, DNS, Charging) and PM reporting tools
- Expert ability to analyze and develop improvement plans for performance and capacity KPIs
- Proficiency in SIP and Diameter interfaces and error code interpretation
- Advanced skills in using network tools, trace analysis, and data interpretation
- Readiness for 24/7 support and customer coordination
- Familiarity with virtualization and cloud concepts; hands-on virtual node experience
- Knowledge of automation technologies to streamline operations
What the Team is Saying
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What We Do
Ericsson builds the digital connectivity the world relies on. Our technology underpins the mobile networks, platforms, and systems that billions of people, businesses, and societies depend on every day. We are a global leader in communications technology, delivering mobile network infrastructure, cloud software, and wireless connectivity solutions for service providers and enterprises worldwide. Our networks support connectivity across 180+ countries, helping power everyday communication as well as critical digital services at global scale. Connectivity has evolved far beyond consumer mobile use. Today, nearly 80% of the world’s population accesses the internet via mobile networks, and Ericsson is helping shape what comes next. We are advancing 5G and 5G Advanced, developing network APIs that open connectivity to the global developer ecosystem, and applying automation and AI to make networks more intelligent, efficient, and resilient. Ericsson was the first company to launch live 5G networks on five continents, and our 5G platform is now commercially live in 150+ networks across 60+ countries. We also support more than 36,000 enterprise customers, enabling secure, high-performance connectivity for industries such as manufacturing, aviation, logistics, utilities, and public safety, where reliability and performance are mission critical. Innovation is central to how we work. Ericsson has approximately 28,000 employees in research and development, backed by one of the strongest intellectual property portfolios in the industry with 60,000+ granted patents. Our engineers, researchers, and technologists work across 100+ global R&D sites, helping define how networks evolve and how digital infrastructure is built for the long term. As the world moves toward a mobile-first, AI-powered, and cloud-driven future, connectivity becomes the foundation for digital transformation across every industry. Ericsson is building that foundation, shaping the future of digital connectivity through technology that operates at global scale and supports real-world impact, today and for what comes next.
Why Work With Us
Ericsson is a place for people who want to work on technology that powers everyday life. You’ll contribute to large-scale systems used every day, tackle complex challenges in live environments, and keep developing your skills and career in your own vision.
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