R D Engineering Manager
Resume:
Daouda Thiongane
Location: Richmond, CA
********@*****.***
PROFESSIONAL WORK EXPERIENCE
Lucid Motors, Fremont, CA
May 2022 to June 2023
Electrical enginer PCB component specialist
•Bring up, run test protocol and maintenance of metrology equipment
•BOM creation, parts finding and PCBA design of control module, sensor
•Automotive pcb, powertrain, wire harness evaluation, power connector
•Reverse engineering pcb and cost estimation of automotive module
•Module investigation, comparaison and recommendation
•Using CAD allegro, Pspice, ECAD, Soildworks, Zuken
•Implemented low and high speed protocols like I2C, Uart, Spi, USB, HDMI, Pcies, memory
Micron Technology, San Jose, CA
Jan 2021 to May 2022
R&D lab engineering manager: PCB component specialist
•PCB board bring up, run test protocol and maintenance of metrology equipment
•Support of lab project with setup snd installation of various systems
•Calibration and inventory of all lab test equipment
•Monitor and verify all ESD workstation for proper operation
•Operate and setup high end wafer probing machine
•Reverse engineering of many pcba systems and execute tests using linux, c++, python etc.
•Pcb expert design with rework and support all teams
•Worked on many protocols like I2C, Uart, Spi, USB, Pcies and so
•EMC/EMI setup and metrology implementation and testing
•Folloiwng IPC standard A-610-12-13-18, 2221 for pcba and signals characterization
Sedo Technology, Bay Area, CA
Feb 2020 to Jan 2021
Field Support Engineer
•IT consulting, network installation, Data center setup and support (Walmart, Target, BOA, Wells fargo)
•Troubleshoot and repair electro-mechanical systems (ATM, Kiosk, Vending machine)
•POS, Access point, wireless, handheld devices setup and complete upgrade
•Using Adms programs, On-line Diagrams, POS system
•Network implementation, setup, troubleshooting all hardware (firewall, switches, routers)
•Using NEC, NCEES code, Zuken E3 for design
Microsoft Corporation, Sunnyvale, CA Mar 2019 to Feb 2020
Cloud Lab Engineer
•Configuration of Azure and upgrade to newest version
•Installation and racking of all networking equipment (firewall, switches, routers)
•Troubleshoot and investigate all network connectivity issues for customer and developers
•Memory upgrade, Storage installation, allocation in all machines
•Test NMVEs, SSD and Hds for various brains name (intel, Wds, Hp, Sonny, etc.)
•SFP Interfaces installation, configuration and testing of 10ghz, 20ghz, 40ghz, 100ghz
Fresenius medical care, Concord, CA Sept 2018 to Mar 2019
R&D Lab Manager
•PCB system schematic and layout design, capture and simulation using Allegro, Mentor and PCB123
•PCBA bring up help in designing and test medical device and debug systems
•Low, High speed systems design implementing (spi, i2c, pcie, usb, can, uart etc.)
•Setup and control incoming asset for all test equipment
•Request for calibration, verify and fix all ESD related tehcnical issues
•Prototyping, repair, rework of FPGA, QFN verify and test defect system for resolutions
•Support all project with different group (hardware, software, mechanical)
•Update ECOs, buy electronics part and component for new project
•EMC/EMI setup, test and characterisation of systems in hermitic chamber
•Using Zuken E3, EXSLENTIA for safety management lifecycle
•Following IEC standard 60601-1 for medical devices, systems and subsystems
•Following IPC standard A-610-12-13-18, 2221 for pcba and signals immunities
•Following NEC, NCEES electrical code and safety rules
Calix Inc. Petaluma, CA Sept 2017 to Sept 2018
Hardware Test Engineer
•PCB setup, bring up and test telecom hardware system (Serdes, DDR4L, I2C).
•Characterization, investigation of protocols like I2C, Uart, Spi, USB, Pcies using Tektronix, Agilent high end equipment to measure clock, data and eye diagram specific to CPU, Qumran, and DDR4L
•Analyze and investigate switches, power modules, temperature sensors
•Run traffics using Spirent traffic generators on GPONs system.
•Verify signal integrity using high end oscilloscope and network analyzer, spectrum or TDR
•Familiar with analog to digital converter circuit designing
•Using Mentor graphic (PAD), Allegro and Cadence for design, modeling and simulations
•Have used python, Tcl to run script and test system
•Knowledge of microwave principles such as parasitic, resonance, loss, impedance matching, S- parameters
•Using Pspice,Ecad and allegro
Technical Support Engineer for Work market (Bay Area, CA)
Nov 2016 to Sept 2017
Field Service Engineer
•Debug, fix electronics systems (vending machine, electronics doors, sensors on customer's site.
•Setup network printers and install network systems and wireless security systems in many sites
•Installation of cash register, printers for POS (Banks, Shopping center, Hospital)
•Full installation of cables, IP phones, Printers, Scanners and Network setup
•Racks installation, setup, test with cables, certification and management in data center
•POS, Pin pad installation, printer with cash register configuration
•Troubleshoot, debug, investigation of network and telecommunication related problem
•Setup, repaired, fixed high-end laser printers and scanners
•Installed electrical, electronic parts and hardware in housings or assemblies using soldering equipment and hand tools.
•Using Adms software and On-line diagrams in various systems
•Network Cut over for ATT, Verizon, Sprint in many sites• Fiber optic splice, test and installation in network room
•Installation of wireless AP (access point), camera in many locations.
•Project support in all California and some out of state.
Oracle Corporation Belmont, CA Jan 2016 to Nov 2016
Hardware Engineer
•Using CAD, allegro to design and update layout and mechanical design
•Schematic capture design, layout with library part creation
•PCBA bring up low and high speed systems, test debug and rework pcba
•Full chassis assembly, with modules and run all functional tests
•Adjusted and replaced defective circuit and electronic components, using hand tools and soldering irons
•Assembled, Setup and install chassis in network racks and run all scripts for future use
•Modification of hardware and make recommendations for better performance using Jira to report modules and chassis status for progress
•Inspected, updated firmware version of all programs installed
•Rework repair and troubleshoot PCB board to comp
•Analog and Mixed Signal IC Circuit designing experience using Cadence, Allegro
•Signal integrity characterization, verification and resolution
Cisco Systems INC, San Jose, CA July 2014 to Nov 2015
Hardware Test Engineer
•Hardware debug, testing switches (NC24, 72, 96)
•Setup, bring up switches system, storage system and routers
•Rework pcb and verify measurement for signal integrity
•Fix RMA system from customers and re-test
•Hardware debug, test and rework memory module
•Setup networks and VLans on different types of switches
•View and use mentor graphic to design and export to allegro and vis-versa
•Rework repair and troubleshoot PCB board
•Analog and Mixed Signal IC Circuit expertise
•PCB designing, troubleshoot experience in analog, digital, and mixed signal circuit
•Analysis and debug many systems to component level.
•Lab equipment setup (configure servers, network switches) for testing
•Rack switches, Cluster switches with blades of network ports
•Test, debug, run script using Tcl, Linux, Python
•Used RS232, cisco console cable, to usb and so on
•Worked in GNSS system and protocol testing for satellite and Glonass systems
•EMC/EMI testing and implementation
Intel Corporation Santa Clara, CA Apr 2012 to Jul 2014
Engineering Hardware and Debug Support
•Hardware debug for RMA, test and rework memory module
•Fine pitch rework and eco support
•Experienced using high end thermal chamber and mechanical testing
•Supported Wireless and tablet teams for bring up and testing
•EMC/EMI implementation and testing
•Tested and debug wireless devices using scripts in windows and Linux environment
•Tested 10Ghz, 40Ghz nic cards in Linux setting using traffic generator to monitor data
•Built and fix different types of electronics modules supporting server base station
•Worked closely investigating thermal issues related to server base station
•Eco upgrade and firmware load in many settings• Bring up and testing SoCs, server boards, windows tablets and many other systems
•Tested and troubleshoot WLAN Physical layer (PHY)
•Used Mat lab, Zemax. mat cad, LabVIEW
•PCB design and layout using Cadence, Allegro or PCB123
•GNSS configuration and testing
Rambus, Inc. Sunnyvale, CA Oct 2011 to April 2012
Engineering Technical Support
•Test, troubleshoot and rework memories module devices
•Used high end microscope to rework and debug in fine pitch environment
•Used Mat lab, Mat cad, LabVIEW and Zemax
•Test setup and test variety of electronics devices Used, operated many RF test equipment’s (Network, Spectrum Analyzer, power meter etc.)
•Tested and characterized RF modules from 1gig up to 65Ghz (ADC, DAC, VCO, Mixers, PLL, Power Amplifiers, Synthesizer, Filters etc.)
•Design and support of test fixtures and electrical/optical test systems from DC up to more than 50 GHz
Johnson & Johnson Dec 2008 to Oct 2011
Senior PCB engineer
•PCBA testing and assembly for medical devices used Express PCB to update and design layout test board using IPC standards.
•Failure analysis and R&D electronics support using high end microscopes (Meiji, Nikon) to assembly, to solder or de-soldering while reparing SMD, BGA components.
•Working in clean room protocol with ISO 9001 with FDA certified under ESD free environment, troubleshoot and tested smt pcba board
•Following IEC standard 60601-1 for medical devices, systems and subsystems
•Following IPC standard A-610-12-13-18, 2221 for pcba work requirement
Adept Technology, Inc. Livermore, CA Jun 2008 to Dec 2008
Senior PCB-RF Technician
•Reworked and tested bare board modules according IPC 600,610 using schematics and layout
•Built and tested cables with different connectors using TDR tester
•Tear down Bare and PCB board modules and update to new ECO
•Built, drill and test in house fixtures prototypes for future model
•Repaired, soldered and de-soldered various SMT components (0603, 0402, 0201) and BGA under the microscope with hot air vacuums
•Working in high power (600V up) robot system following all safety industrial Osha requirement
•Clean room protocol with ISO 9001 certified under ESD free environment.
•Control board evaluation, testing, debug and repair for robots
•Using EXSLENTIA for safety management lifecycle
Innovative Interface Inc, CA Jul 2005 to Jun 2013
Technical Support Engineer
•Library Software support (linux, C++, Weboppac, Unix)
•Nework implementation, setup, troubleshoot and resolve database (oracle, Sql) issues
•Remote update, installation, system recovery, backup and repair library software bug
•Software maintenance and support existing software applications in a sustaining environment
•Defect analysis, troubleshooting, identify, documented, and analyze software defects
Clear-Com Communication Systems Alameda, CA Jul 2005 to Jun 2008
PCB-RF engineer
•Using Schematics and layout I have been troubleshooting different Communication PCB modules at component level
•Reworked, tested and fixed various and complex RF modules and RF PCB boards using IPC standards•
•Soldered and de-soldered various SMT components (0603, 0402, 0201) and tiny SMD and BGA under the microscope with hot air vacuums
•Fixed and assembled many kinds of intercom and Radio modules used in TV and military sectors.
•Built and tested data and voice cables with different connectors using TDR tester
•Updated and reworked to new ECO applying IPC 600, 610
•Clean room protocol with ISO 9001 certified under ESD free environment
•Tested and verified chips used to interface microphone and telecom devices
•Used, operated many RF test equipment (Network, Spectrum Analyzer, power meter etc.) to test, characterize modules (ADC, DAC, VCO, Mixers, PLL, Synthesizers, Power Amplifier, Filters etc. SBC COMMUNICATION: Telecom /DSL/network & R&D Engineering Technician (San Francisco, San Ramon CA)
AT&T Dublin, CA Mar 2004 to Jul 2005
Senior engineering Technician
• Customers (business/residential) support, solved many technical issues related to software and network problem
•Built and tested data and voice cables with different connectors using TDR tester
•Used, operated many RF test equipment (Network, Spectrum Analyzer, power meter etc.)
•Tested, characterized modules from 10Mhz to 20Mhz (ADC, DAC, VCO, Mixers, PLL, PA, Filters etc.).
•Designed, assembled, reverse engineered PCB boards, used Express PCB and Mentor Graphic PAD designer software to layout PCBs
•Used high end microscope assisted with hot air vacuum to assembly and rework fine pitch components
•Hand soldering of SMD parts (0201, 0402, 0603) using microscope and handheld heat guns (Met Cal, Weller)
•Research and Kitted parts from BOM and assembled drawings to implement rework from redlines or schematics
•SMT rework including fine pitch BGA, QFN, QFP, TQFN and using small rework station (soldering, de-soldering)
•Used and read schematics, layout to troubleshoot, test and fix different PCBA boards
•Building of cables, terminate connectors and harnesses
•Used and operated lasers workstation to check and verify deficiencies for pins or soldering integrity (shorts and open)
•Clean room protocol with ISO 9001 certified and ESD free environment
Intel Corporation Inc. Newark, CA Jan 2004 to Mar 2004
Intern Test Engineer
•Tested, assembled transponders for different companies, Cisco, Alcatel, Foundry, and Extreme
•Optical-Mechanical assembly and computer testing of transponders using LabVIEW software
•Optical-Mechanical assembly, alignment, troubleshooting and testing
•Building of sub-assembly of optical and system level test platforms in clean room protocol (ISO 9001) and ESD free environment
•Worked on GNSS system and protocol testing for satellite and Glonass systems
•Using LabVIEW and Matlab for test
EDUCATION
•Master of Science in Electrical Engineering, San Jose State University-San Jose, CA:
•Emphasis in Analog- Mixed Signal (AMS)
•Bachelor of Science Electronic Engineering Technology, DeVry University-Fremont, CA: February 2004.
•Senior Project: Complete design, construction, testing and presentation of Stud Vision
•Associate in Applied Science Degree in Computer Networking Technology
•Associate in Applied Science Degree in Electronics Technology
Contact this candidate