Laxman Pawar

Results-driven Telecom Test Engineer with 4+ years of experience in end-to-end validation of Android smartphones, tablets, and smartwatches on Qualcomm, MediaTek, and Unisoc platforms. Deep expertise in LTE, VoLTE, VoWiFi, IMS, 5G NSA/SA, and VoNR call flow testing across lab, field, and live commercial network environments. Proven ability to identify and reproduce complex network issues through QXDM, QCAT, Shannon Logger, Wireshark, and ELT log analysis.

Successfully raised 150+ defects across 15+ countries in Europe and APAC, delivering structured root cause reports that directly accelerated chipset vendor resolution cycles.

Test Engineer - Marquistech Pvt. Ltd. - Navi Mumbai

(2020-12)

• Executed functional, regression, sanity, and interoperability testing on pre-launch Android smartphones, tablets, and smartwatches across Qualcomm, MediaTek, Unisoc, and Google Tensor chipset platforms.
• Validated VoLTE, VoWiFi, IMS, 5G NSA/SA, VoNR, SRVCC, CSFB, and RTT call flows in lab, field, and live commercial networks against carrier acceptance criteria.
• Authored and executed test cases covering VoLTE, roaming, stationary, mobility, and 5G/4G handover scenarios for domestic and international operator acceptance testing programmes.
• Validated carrier-specific telecom protocols and IMS call flows including NAS Attach, PDN Connectivity, SIP INVITE/200 OK/BYE, IMS Registration, and re-registration across multiple operator networks.
• Conducted on-field operator acceptance testing across 10+ European countries — Belgium (Proximus, Orange, Telenet/Base), Netherlands, Germany, Denmark, Austria, Ireland, France, Portugal, Switzerland, Sweden, and Norway — covering roaming, handover, and network interoperability scenarios.
• Executed remote network validation across 5 APAC regions (Japan, South Korea, Australia, New Zealand, Taiwan), verifying region-specific carrier requirements, mobility performance, and data throughput.
• Validated wearable device (smartwatch) functionality across multiple models in European field environments including Ireland, Switzerland, and Austria.
• Analysed modem and network logs using QXDM, QCAT, Shannon Logger, ELT, and Wireshark to pinpoint root causes of call drops, idle-to-connected delays, IMS registration failures, RF loss, and data failures.
• Performed deep-dive Wireshark analysis for IMS SIP trace, XCAP service flows, and ePDG traces, isolating protocol-layer defects and enabling faster vendor resolution.
• Performed RF and network issue analysis for idle-to-connected delay, call drop, data failure, and registration failure scenarios, delivering structured defect reports to R&D and chipset vendor teams.
• Raised and tracked 150+ defects across multiple devices in JIRA with detailed reproduction steps, supporting modem logs, and call flow references; coordinated with R&D and chipset vendor teams for timely resolution.
• Supported automation test execution for short-call, long-call, and data throughput scenarios, contributing to continuous integration testing activities.
• Collaborated with R&D, chipset vendors, and network operations teams to drive regression, integration, and stability testing cycles for commercial device launches.

Bachelor of Engineering - Electronics Engineering - Pillai College of Engineering, Panvel (2020)