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Tech lead

LTTS · Bangalore

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Collected role description

Role overview

Tech lead at LTTS

Responsibilities

  • Perform end-to-end validation of 4G LTE and 5G NR modem features in SA/NSA deployments.
  • Analyze protocol logs and debug issues involving RRC, NAS, IMS, SIP, PDCP, RLC, MAC, and PHY layers.
  • Work with test platforms such as Anritsu MT8000A/MD8430/ME7834, Spirent, Keysight UXM/PXT, and R&S CMW/CMX.
  • Perform root cause analysis using QXDM, QCAT, Wireshark, PA3, and other protocol analysis tools.
  • Collaborate with chipset vendors, development teams, and carrier/operator labs to resolve issues.
  • Develop and maintain test automation using Python, Robot Framework, PyTest, Shell scripting, or similar frameworks.

Employment details

  • Location: Bangalore [India]

Additional role details

  • Execute functional, regression, interoperability, performance, and carrier acceptance testing.
  • Validate VoLTE, VoWiFi, VoNR, IMS, NTN, Carrier Aggregation, Mobility, Handover, Network Slicing, and emergency services features.
  • Conduct protocol conformance and carrier certification testing as per 3GPP and operator requirements.