Roshni Chellani

Product Engineer

San Diego, California, United States9 yrs 11 mos experience
Highly Stable

Key Highlights

  • 10 years in RF/Wireless domain expertise.
  • Helped 7000+ people in career growth.
  • Speaker and mentor in job search strategies.
Stackforce AI infers this person is a Telecommunications expert with extensive experience in RF validation and modem testing.

Contact

Skills

Core Skills

Modem System VerificationRf ValidationTestingWireless TechnologiesRf ApplicationsAutomation

Other Skills

Analytical SkillsMobile TestingLog AnalysisPTCRB3GPPCellular CommunicationsDemodulationRF TestEquipment TestingGCFTest PlanningRF SystemsTest Requirements4GHandsets

About

Hello, thank you for visiting my profile :) With 10 years of extensive experience in the RF/Wireless domain and having helped commercialise various flagship modems at Qualcomm for 4G/5G, I am now working at Mediatek as a staff modem system verification engineer. I provide consultations on job search, career growth, career change, promotions, and more problems students and working professionals face daily. I have helped 7000+ people in the last 4 years in their job search and career growth. Please book a call from the link under my headline or feel free to reach out to me at roshni.chellani@gmail.com.

Experience

9 yrs 11 mos
Total Experience
3 yrs 1 mo
Average Tenure
2 yrs 7 mos
Current Experience

Mediatek

Staff Modem system test engineer

Sep 2023Present · 2 yrs 7 mos · San Diego, California, United States · On-site

Analytical SkillsModem System Verification

Instagram

Content Creator

Jun 2020Present · 5 yrs 10 mos · Remote

Qualcomm

Senior RF validation engineer

Apr 2017Jul 2023 · 6 yrs 3 mos · Greater San Diego Area

  • Responsible for testing, debugging, and validation of Qualcomm's flagship modem to monitor key performance parameters like max power, ACLR, EVM, SEM Sensitivity etc. for LTE/NR SUB6 by working with cross-functional teams.
  • Validated SA, NSA and DLCA test combos for online/FTM mode using Anritsu 8000A call boxes, spectrum analyzers, Signal generators, and power supplies used for RF tests.
  • Successfully brought up features like Dynamic power switching and Tracking reference signal and
  • incorporated/automated the testing framework.
  • Drove efforts to enable several new bands and band combos on flagship modems from test planning to test execution.
  • Successfully drove efforts to incorporate the Axiom automation tool across the RF Test team in India and San Diego. Provided various trainings to help standardize test planning across organisations.
Mobile TestingLog AnalysisPTCRB3GPPCellular CommunicationsDemodulation+11

Apple

Wireless/OTA RF systems intern

Sep 2016Dec 2016 · 3 mos · San Francisco Bay Area · On-site

  • Built a highly accurate Source pull test bench by using Maury-Microwave tuners for its application to Wireless technologies for iOS devices. Hands-on experience in the Characterisation of tuners, Cascading of S-parameters, and analysis of receiver performance to design an optimised multi-technology radio.
  • Characterised Path Loss in a multi-path environment by using channel modelling techniques. The deterministic part of the model was characterised by the calculation of path loss exponent in Simplified Path loss. Randomness was characterised by calculating standard deviation in Log normal shadowing. OTA performance evaluation of wireless devices including power/sensitivity/efficiency.
Mobile TestingRF TestEquipment TestingWireless Technologies

Intel corporation

2 roles

RF Applications/Integration support intern

May 2016Aug 2016 · 3 mos · Phoenix, Arizona Area · On-site

  • •Support/collaborate with RF HW Applications / Systems Integration Engineers in the testing, debugging, and validation of Intel RF Transceiver ICs and the related control features.
Mobile TestingRF TestEquipment TestingRF Applications

System Protocol Automation Test Intern, Mobile Communications Group.

Aug 2015Jan 2016 · 5 mos · Greater San Diego Area

  • Key resource for Automation of AT&T XMM 10776 specification by using Intel's automation framework on Anite 9000 test accelerators.
  • Automated more than 1000 test cases by developing/validating scripts in Groovy language for different test case scenarios including Network Selection, Call Processing, ENS, EONS, RRC encryption, Femto Cell, MM, Cell Broadcast and TTY. Analyzed logs to debug if it's a UE, Network or automation issue. Fine tuned user-prompts for execution of test cases.
  • Proficient in using SIMplexer 3.1 SIM switching device to automate switching between different test scenarios.
Mobile TestingRF TestSystem DevelopmentEquipment TestingAutomation

Ericsson

Intern

Jun 2015Jul 2015 · 1 mo · India

  • Supporting intern to a Network Operation Engineer(Operations and Maintenance Center Radio department)
  • Worked on Xmanager to analyze problems like power failure or a cut in optical fiber, to trouble shoot, monitor network and report site technicians and other NOCs for problems.
RF Test

University of texas at dallas

Student Worker

Feb 2015Apr 2015 · 2 mos · Comet Callers

  • Maintaining alumni relations and networks as a part of Office of Alumni relations at University of Texas at Dallas and responsibilities include calling the alumni, updating their profile information and promoting various events that happen on campus.

Advance electronics

Technical Support Intern

Jun 2013Sep 2013 · 3 mos · Vadodara Area, India

  • Implemented Corrosion Control Transformer and Rectifier Unit by designing Analog Corrosion Control (ACC) and Transformer Rectifier Unit (TRU) for protection of on field pipelines and converted the system from analog to digital by using Programmable system on chip (PSOC-5).

Education

The University of Texas at Dallas

Master's Degree — Electrical engineering

Jan 2014Jan 2017

BITS Edu Campus: BABARIA INSTITUTE

Bachelor's Degree

Jan 2010Jan 2014

Convent of Jesus and Mary, Girls high school, Vadodara.

High School — Primary and Higher Education.

Jan 2001Jan 2009

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