Telecommunications Engineer

4 weeks ago

Nellore, Andhra Pradesh, India Tek Support Full time

Job Title: Telecom Engineer

Location: Remote

Industry: Telecommunications / Wireless Communication

Job Overview:

We are seeking an experienced 4G/5G Quality Assurance & Protocol Test Engineer Trainer to lead testing, validation, and performance analysis of LTE and 5G network features, with a strong emphasis on Radio Access Network (RAN) and call processing technologies. This role involves executing field protocol tests, including SIM OTA activation, post-processing UE logs, and analyzing KPIs to ensure compliance with carrier and QA requirements. The successful candidate will demonstrate deep expertise in 4G/5G air interfaces , IMS-based services (VoLTE, VoWiFi, ViLTE, conferencing, SMS, MMS, RCS), and RAN performance optimization, with proven ability to work extensively in live 4G/5G NSA and SA network environments, while also delivering hands-on training and knowledge transfer to internal teams or client personnel.

Key Responsibilities:

  • Plan, execute, and document LTE and 5G NR field protocol tests, including SIM OTA activation and call flow validation.
  • Analyze UE logs and KPIs using tools such as QXDM, QCAT, Wireshark, and ShannonDM , identifying issues and recommending optimizations.
  • Debug and validate IMS features including VoLTE, VoWiFi, ViLTE, conferencing, SMS, MMS, and RCS .
  • Conduct field testing in live 4G/5G NSA and SA network environments.
  • Perform root cause analysis and troubleshoot reported issues from customer labs, field sites, and production networks.
  • Review and assess UE performance trends, suggesting improvements to meet carrier requirements.
  • Work closely with cross-functional teams to define system requirements, prepare detailed designs, and evaluate new product/software releases.
  • Manage test plans, meet project deadlines, and assess risk items based on testing outcomes.
  • Travel up to 25% for on-site testing and customer engagements.

Required Skills & Experience:

  • Strong knowledge of 4G LTE and 5G NR air interface, call processing technologies, and RAN architecture .
  • Experience with UE log post-processing tools (QXDM, QCAT, Wireshark, ShannonDM).
  • Familiarity with OTA signaling messages and RAN KPIs.
  • Proficiency in analyzing, debugging, and validating IMS-related services .
  • Solid understanding of 5G NSA and SA network modes .
  • Experience in post-processing UE logs and KPI analysis.
  • Hands-on LTE/5G field testing in live network environments.
  • Strong problem-solving, communication, and documentation skills.
  • Ability to work independently in both field and office environments.

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