We are looking for an experienced Packet Core SME to provide technical leadership and expertise in the testing, validation, troubleshooting, and integration of 4G/5G Packet Core networks.
Responsibilities
- Act as Subject Matter Expert for EPC and 5G Core architecture, interfaces, procedures, and services.
- Validate and troubleshoot core network functions including MME, SGW, PGW, AMF, SMF, and UPF.
- Analyze end-to-end registration, session management, mobility, and data service scenarios.
- Develop test strategies and test scenarios based on system requirements.
- Perform protocol and log analysis to identify and resolve complex network issues.
- Analyze signaling protocols including GTP-C/U, Diameter, PFCP, HTTP/2, NGAP, and NAS.
- Collaborate with development, system engineering, and integration teams on defect resolution.
- Support customer technical discussions and critical issue management.
- Mentor and guide Packet Core test engineers.
Qualifications
- 8+ years of experience in Telecom Core Engineering.
- Strong expertise in 4G EPC and/or 5G Standalone (SA) Core networks.
- Good understanding of 3GPP architecture and specifications.
- Hands-on experience in Packet Core testing and troubleshooting.
- Strong knowledge of GTP, Diameter, PFCP, HTTP/2, NGAP, and NAS protocols.
- Experience with Wireshark, protocol analyzers, and network test tools.
- Knowledge of virtualized and cloud-native network functions is an advantage.
- Strong analytical, problem-solving, and communication skills.
HCLTech is an Equal Opportunity Employer committed to diversity and inclusion. All qualified applicants will receive consideration for employment regardless of race, religion, gender, sexual orientation, age, disability, or any other protected status
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