The Packet Core Test Engineer is responsible for testing, validation, and integration of 4G LTE EPC and 5G Standalone (SA) Core network functions. The role involves functional, integration, regression, and interoperability testing within complex telecom environments.
Key Responsibilities
- Design and execute test cases for EPC and 5G Core network functions.
- Validate registration, session/PDU establishment, mobility, data connectivity, and recovery scenarios.
- Perform integration testing across RAN, Core, and external network systems.
- Execute functional, regression, interoperability, and upgrade testing activities.
- Analyze protocol traces, logs, and test results to identify and document defects.
- Perform first-level root cause analysis and collaborate with development and integration teams.
- Create test reports, defect reports, and test evidence documentation.
- Support test automation initiatives and CI/CD integration activities.
Required Qualifications
- 4-8 years of experience in Telecom Core Network Testing.
- Strong understanding of LTE EPC and/or 5G SA architecture.
- Knowledge of MME, SGW, PGW, AMF, SMF, UPF, UDM, and AUSF.
- Experience with GTP, Diameter, PFCP, HTTP/2, NGAP, and NAS protocols.
- Hands-on experience with Wireshark and protocol analysis tools.
- Linux administration and basic shell scripting skills.
- Experience with Agile methodologies and defect management tools such as Jira.
- Python-based test automation knowledge is an advantage.
- Strong analytical, troubleshooting, and communication skills.
Equal Opportunity Statement
HCLTech is an Equal Opportunity Employer committed to fostering a diverse and inclusive workplace. All qualified applicants will receive consideration for employment without regard to gender, nationality, ethnic or social origin, religion or belief, disability, age, sexual orientation, or identity. Applications from severely disabled candidates and those with equivalent status will be given preferential consideration where qualifications are equally suitable, in accordance with applicable German legislation.
Packet Core Test Engineer (m/f/d) in Ratingen Arbeitgeber: HCL Technologies Limited
HCLTech ist ein hervorragender Arbeitgeber, der seinen Mitarbeitern in Ludwigshafen eine dynamische und unterstützende Arbeitsumgebung bietet. Mit einem starken Fokus auf persönliche Entwicklung und Karrierewachstum profitieren die Mitarbeiter von umfangreichen Schulungsprogrammen und der Möglichkeit, an innovativen Projekten in einem globalen Team zu arbeiten. Die Unternehmenskultur fördert Zusammenarbeit und Kreativität, während attraktive Benefits und ein modernes Arbeitsumfeld sicherstellen, dass sich jeder Mitarbeiter wertgeschätzt und motiviert fühlt.
