RF Calibration Engineer

We are seeking a skilled and experiencedRF Calibration Engineerwith hands-on expertise inQualcomm cellular platformto lead and execute RF calibration activities including RFC card generation, QCN/XQCN handling, and RF tuning. The candidate will play a critical role in ensuring optimal RF performance across LTE, GPS, Wi-Fi, and Bluetooth subsystems.Areas Of Responsibility PerformRF calibrationfor cellular platforms based onQualcomm SoCs(e.g., QCM, QCS, SA2150, SA415M, SDX series, QCX series) Generate and updateRFC (Radio Frequency Configuration) cardsfor factory and production use HandleQCN/XQCNbackup, editing, and restoration for RF parameter tuning Conductcalibration proceduresusing Qualcomm toolchain: QPST, QXDM, QDART, QCAT, and QMSL Analyze and debug RF logs, NV configurations, and RF signal performance Coordinate with hardware and modem teams to optimize antenna and RF path SupportEFS/NV management , RF provisioning, and board-level bring-up Automate repetitive tasks usingPython/Perl scriptsfor efficiency in calibration and flashing Maintain documentation and traceability for RF performance and test results Experience and Qualification Experience: 5 to 10 yrs Solid hands-on experience with Qualcomm RF calibration tools and procedures Experience with multiple Qualcomm chipsets (e.g., QCM2290, QCS2290, QCX216, SA415M, SDX55, etc.) Deep understanding of LTE/4G/5G, GNSS, Bluetooth, and Wi-Fi RF subsystems Familiarity with NV item editing, eFuse programming, and RF tuning principles Strong background in wireless testing, calibration lab tools, and scripting automation Bachelor's or Master's degree in Electronics, Telecommunications, or relevant discipline Qualifications: Prior experience withmass production RF calibration and automation Exposure tocarrier certification(PTCRB, GCF, operator-specific requirements) Familiarity withSAR/TRP/TIS testing , antenna design, and tuning practices Knowledge ofeSIM/eUICC , security provisioning, and factory test flows Experience with Qualcomm’sDiag protocol ,QCN tools , andRF trace analysis Technical And Behavioural Skills Technical Skills : Qualcomm Tools & Platforms: QXDM – Log capture, RF trace analysis, event monitoring QPST/QFIL – EFS access, QCN flashing, QPST server tools QCAT – Log post-processing and NV item analysis QDART – RF calibration and automation interface QMSL (Qualcomm Modem Software Library) – Used for scripting RF calibration routines RFNV Tool / QCN Manager / NV Manager – NV editing and configuration RF Card Tool / RFC Generator – RFC card creation, editing, and validation eFUSE Tools – eFUSE blowing for platform security and production configuration Calibration & Testing: RF Calibration – LTE/4G/5G, GNSS (GPS/GLONASS), Bluetooth, Wi-Fi QCN/XQCN Handling – Backup, edit, restore NV configurations EFS Management – File system access for provisioning and NV injection RF Tuning & Optimization – Gain table tuning, PA bias, switch path config Production Calibration Flow – Factory-line calibration using automation scripts Carrier Certification Support – TRP/TIS/SAR data generation, PTCRB, GCF Modem & Protocol Stack Knowledge: LTE Bands, Band combinations, Carrier Aggregation Diag protocol & diagnostic message decoding Call flow understanding: Attach, RRC, PDP contexts NV item structure and interdependencies Behavioural Skills: Strong communication and teamwork skills. Ability to adapt to a fast-paced and dynamic business environment. Detail-oriented with a focus on quality and accuracy. Proactive and self-motivated with a results-oriented mindset.