Image of Josua Purba

Josua Purba

Sr. System Embedded Engineer

Staff Embedded System Engineer at Element Biosciences

San Diego, California

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Josua Purba's Email Addresses & Phone Numbers

Josua Purba's Work Experience

Quake Global

Sr. System Embedded Engineer

2012 to 2013

Greater San Diego Area

Entropic Communications

Staff System Integration Eng

July 2011 to August 2012

Greater San Diego Area

GE Oil and Gas

Sr. Software Engineer

July 2010 to January 2012

Oklahoma City, Oklahoma Area

Josua Purba's Education

Pace University

Doctor, Computing IT

2008 to 2011

Villanova University

MSEE, cellular, wireless & digital communication

2002 to 2005

New Mexico State University

MSEE, Telemetry, Satellite communication, DSP, digital communication

1995 to 1997

Josua Purba's Professional Skills Radar Chart

Based on our findings, Josua Purba is ...

Strong sense of self

What's on Josua Purba's mind?

Based on our findings, Josua Purba is ...

56% Left Brained
44% Right Brained

Josua Purba's Estimated Salary Range

About Josua Purba's Current Company

Quake Global

Working on M2M/IoT tracker system which use accelerometer sensor, GPS, Iridium Satellite SoC and cellular network with ublox SoC. It uses ARM Cortex M3 ARM STM32L152 with sleep mode and low power mode with unison RTOS. It included device driver for flash memory, ADC, SPI, I2C, UART and TCP/UDP connection.Working on Satellite modem SDR on Texas instrument...

Frequently Asked Questions about Josua Purba

What company does Josua Purba work for?

Josua Purba works for Quake Global

What is Josua Purba's role at Quake Global?

Josua Purba is Sr. System Embedded Engineer

What is Josua Purba's personal email address?

Josua Purba's personal email address is jo****[email protected]

What is Josua Purba's business email address?

Josua Purba's business email address is j****[email protected]

What is Josua Purba's Phone Number?

Josua Purba's phone (213) ***-*927

What industry does Josua Purba work in?

Josua Purba works in the Semiconductors industry.

Who are Josua Purba's colleagues?

Josua Purba's colleagues are Donald Rice, and Vladimir Savkin

About Josua Purba

📖 Summary

Sr. System Embedded Engineer @ Quake Global Working on M2M/IoT tracker system which use accelerometer sensor, GPS, Iridium Satellite SoC and cellular network with ublox SoC. It uses ARM Cortex M3 ARM STM32L152 with sleep mode and low power mode with unison RTOS. It included device driver for flash memory, ADC, SPI, I2C, UART and TCP/UDP connection.Working on Satellite modem SDR on Texas instrument OMAP which has ARM and DSP processor. It included Control code in ARM and DSP algorithms code on DSP side.Working on M2M QPRO Orbcomm satellite modem with ARM Cortex M3 STM32F103. It included control code and low level driver with C. From 2012 to 2013 (1 year) Greater San Diego AreaStaff System Integration Eng @ Entropic Communications Working on system and software integration, testing and verification of MoCA 2.0 system on set top box cable modem. Designed and implemented various kind of system test, performance test, functional test, black box test, white box test using Ixia and Ethernet interface with TCP/UDP protocols. Test scripts were implemented with python, tcl/tk and C++ with OOP in Agile environment. From July 2011 to August 2012 (1 year 2 months) Greater San Diego AreaSr. Software Engineer @ GE Oil and Gas Working on downhole sensor of Electrical Submersible Pump (ESP) firmware of GE Oil and Gas. It uses 68HC912 micro controller with assembly laguage. Working on Surface control of ESP system which use Atmel ARM processor with C and RTOS.Designed and implemented User Interface with OOP and Microsoft Visual C++ for data monitoring and control for downhole sensor.Designed and implemented software for control automated testing for manufacturing with MSP430 and GUI interface for PC monitoring, data processing and controlling with C# and OOP. Android apps for Bluetooth with Java, Java script, XML. From July 2010 to January 2012 (1 year 7 months) Oklahoma City, Oklahoma AreaDSP Engineer @ Motorola Working on Physical Layer WCDMA Release 99 DSP and modem algorithms on Motorola cell phone. It including designed and implemented some unit such as radio interface and controller, channel coding and turbo coding, Random Access process, cell search, common pilont channel and channel estimation, broadcast channel and rake manager. The code use C and assembly code on Motorola DSP processor and micro controller. It included requirement and design document. From 1999 to 2001 (2 years) Harvard, ILEmbedded Software Engineer @ Honeywell Working on Avionic system Primus Epic and Primus II Radio and audio modem including designed and implemented DSP algorithms on Analog Devices DSP processor and control code on 8051 micro controller. It included interfacing with cockpit control unit, testing and verification. The code use C and assembly language. It follow SEI level 3 assessment with requirement, design, testing and verification documentation. From 1997 to 1999 (2 years) Glendale, AZSr. DSP Embedded Eng @ L-3 Communications Working on physical layer of digital telemetry and avionic modem system RCB and DR which consists of FPGA with soft core, DSP and micro Controller platforms. The code use C and assembly language.Design and implemented RF tuner control GUI software and RF interface testing for digital telemetry ground avionic product RCB and DR with C++ OOD and python. From 2007 to July 2010 (3 years) Bristol, PASr. DSP Engineer @ Aeroflex Working on layer 1 and DSP algorithms for Public Safety Radio P25/FDMA 3920 testing equipment with floating point TI DSP 6711 and Fix point DSP 6211 on IFR 3900 product. It used DSP BIOS with C/C++ and assembly language on DSP.Design and implemented test measurement analysis and automation with Matlab, Visual Basic, Python and Tcl for audio, cellular, radio and base band signal. From 2005 to 2007 (2 years) Wichita, Kansas AreaSr. DSP Engineer @ InterDigital Communications Software Lead on HSDPA ASIC post tape integration, testing and verification on demo board platform. It was shown in 3G World in Barcelona with Down link rate 10 Mbps with 3GPP CAT 10 test category.The test used Anritsu BSE MD8480C and live video from application layer to UE with radio signal.Designed and implemented board bring up test, unit test, system test, performance test for HSDPA demo platform with C++. It is included test cases development compliance with 3GPP test specification.Perform system integration, testing and verification on Multi core with FPGA platform of Layer 1 Physical Layer, DSP algorithms and interface with MAC Layer for HSDPA and WCDMA Release 5.System and firmware integration, testing and verification for WCDMA FDD and TDD system release 4 including unit test, system test and performance test.Working on OFDM MIMO implementation on 802.11 b on Xilinx and DSP platform for smart antenna platformCo-simulation VHDL and C embedded code with Coware for WCDMA FDD and TDD system simulation for pre-silicon validation and verification. From 2001 to 2005 (4 years) King of Prussia, PAStaff Embedded System Engineer @ Element Biosciences San Diego, California, United StatesSenior Embedded Software Engineer @ Consultant System, Software, firmware and signal processing architectural design, simulation and implementation, RF, ARM, embedded Linux, system integration with testing and verification for sensor, satellite communication, cellular, wireless, P25 system, set top box, video transcoding, MoCA, C/C++/C# and assembly language. From 2013 to November 2020 (7 years) San Diego, CA

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In a nutshell

Josua Purba's Personality Type

Introversion (I), Intuition (N), Thinking (T), Judging (J)

Average Tenure

2 year(s), 7 month(s)

Josua Purba's Willingness to Change Jobs



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