Telecommunications Engineer

Location: San Diego (USA)

Job Description: Mobile Device & Network Testing Conduct pre-launch and field testing for mobile devices, including smartphones, FWA (Fixed Wireless Access) routers, and IoT devices.· Perform stationery and mobility tests for 5G/4G LTE/VoLTE/VoWiFi/5G across different network conditions.· Analyze network KPIs, coverage, throughput, call drop rate, handovers, and VoNR-MOS performance.· Test and validate new features for mobile chipset platforms such as Qualcomm, Media Tek, and Spreadtrum.· Execute end-to-end device validation, ensuring compliance with carrier and vendor requirements. Field & RF Optimization· Conduct drive testing, log analysis, and troubleshooting of degraded KPIs for LTE/5G networks.· Perform network benchmarking, RF tuning, and parameter optimization for improving performance.· Work on interference analysis, cell selection/reselection, handover performance, and protocol validation.· Optimize antenna configurations, coverage planning, and network deployment strategies. Software & Firmware Testing· Flash and verify new firmware builds for mobile devices, tablets, and IoT products.· Debug issues related to network registration, voice/data performance, handover failures, and UI glitches.· Use tools like JIRA, QXDM, QPST, Nemo Outdoor, Wireshark, and Net Act for bug tracking and log analysis.· Test software compatibility, regression testing, and application performance across different platforms. Testing Tools & Protocols· Hands-on experience with:o QXDM, QCAT, QPST, Nemo Outdoor, Nemo Analyzer, Net Act, Wireshark, and spectrum analyzers.o DCAP, KPI Reporter, Web Nei, Web Element Manager, and network simulators.· Analyze LTE and 5G NR protocol stack, including SRVCC, CSFB, Inter-RAT handovers, and carrier aggregation.· Test IP networking protocols, including IPv 4/IPv 6, SIM lock, PIN lock, and security protocols. Customer & Vendor Coordination· Provide detailed test reports, recommendations, and troubleshooting support to R&D and development teams.· Assist in long-term network planning and feature validation for telecom operators.

Required Skills & Qualifications: · Bachelor’s or Master’s degree in Telecommunications, Wireless Communication, or related field.· 5+ years of experience in mobile device testing, chipset validation, and network optimization.· Hands-on experience with 5G, LTE, VoLTE, VoNR, SRVCC, and IMS technologies.· Strong knowledge of RF engineering, network optimization, and protocol analysis.· Expertise in testing tools like QXDM, QPST, Nemo Outdoor, Wireshark, and JIRA.· Ability to debug and analyze network issues related to interference, handovers, coverage, and data throughput. Rajesh Yadav (HR)Email: ryadav@marquistech.com Whats App +91 7838377042