Senior Firmware Engineer Resume

SUMMARY:

Software and firmware engineer with many years of professional experience in research, analysis, design, algorithm development, implementation, testing and bug - fixing for telecommunication system, Video, Audio products.
Optimization and integrating of various audio and video codec on different processors/DSP. Strong background on embedded system.
Expertise on embedded system, firmware and software developing.
Expertise with DSP theory. Experience in audio, video and image digital signal processing.
Experience with hardware level embedded software developing.
Familiar with video codec standard H.264, H.263, MPEG4.
Familiar with audio processing, MP3, AAC, G.7xx, AMR, AGC, DRC, loudness control, …
Worked on VoIP, UMTS, LTE wireless system.
Proficient in designing and implementing DSP/embedded software/firmware algorithms in C/C++ and assembly. Integrated algorithms into RTOS.
Hardware testing, device driver developing.
Algorithms developed: OFDM, OFDMA, FFT, FIR/IIR filter, Echo Canceller, Noise Depression…..
Familiar with microcontroller, multi-processor system coding, lower level peripherals and devices driver

TECHNICAL SKILLS:

Languages: C/C++/C#, Perl, Python script, Matlab and SimuLink.

Assembly language: ARM9/7/Cortex, TI C55/54, C64xx, Z80, 8051, VLIW DSP

Operating System: Windows, UNIX and Linux.

Real Time Operating System: VxWorks, TI DSP/BIOS, Linux.

Development Environments: Clear Case, SVN, CVS, Share Point, Agile, Rally and Synergy Agile/SCRUM.

Developing Environments: MS Visual Studio, Code Composer Studio, GNU.

Microprocessor and DSP: ARM9/7, Intelx86, Z80, 8051, DaVinci, OMAP, TI TMS /55, C62xx, 64xx, 6678 and so on.

Laboratory tools: Oscilloscope, JTAG, Logic Analyzer, Spectrum Analyzer, Audio Precision.

Network Protocols and Standards:: VoIP, xDSL, ATM, IP,TCP,UDP,RTP,RTCP,SRTP,SIP,H.323.

WORK EXPERIENCE:

Senior Firmware Engineer

Confidential

Responsibilities:

Integrated audio algorithms into multi threading real time operating system and optimization.
Confidential algorithm algorithm new futures.
Developed I2S, I2C, SPI, UART device drivers

Senior Software Engineer

Confidential, Newark, NJ

Responsibilities:

Camera hardware interfaces and drivers on Android, Linux, OS X and windows system.
Hardware video codec interface developing on Android system.
Video/Audio codec (X264, openh264, VP8 Speex Opus) integrated to Android and iOS video apps, debugging and testing.
Video/Audio codec bit rate control according to wireless bandwidth by using RTCP.
Video resolution change according to the wireless bandwidth estimation.
Video performance control and testing. Video/Audio streaming transport by RTP and RTCP. SIP/SDP, WebRTC, FFMPEG and PJSIP implementing and testing in Android system.

Confidential

Senior Software Engineer, Dallas, TX

Responsibilities:

Configuring Linux video server system. Integrated Confidential and some video/audio codec into system.
Ported X264 video codec from Linux version to Windows Visual Studio 2010 version.
Video/Audio trans-coding algorithm developing on TI 6678 DSP. Ported x264 source code to GPU, by using Open CL and CUDA. Image post processing by Confidential .
Developed video camera data transferring interface on ARM cortex microcontroller.
Http adaptive streaming workflow testing on both server and mobile side.
Video and audio synchronization, Voice activity detection and active speaker switching.
Video/audio relay stream control, bandwidth estimation and bit rate control, H.264/SVC video bit rate control and dynamic thinning.
H.264 AVC/SVC RTP video stream packing/de-packing, trans-coding.
Clients information management by MySQL Implemented RTCP features related with AVC/SVC on client software and performance testing.

Confidential

Senior Embedded Softeware Engineer

Responsibilities:

Developing signals acquisition and processing algorithms on multi threading real time operating system and optimization.
Optimized 3D FFT and some other signal processing algorithms on C64++ DSP Developed I2S, I2C, SPI, GPIO, DMA, UART, Bluetooth device drivers, RF transmitter, camera RGB to Confidential interface and FPGA driver. Radar and image signal computer vision algorithm Matlab simulation.
Motion control algorithms developing on ARM9 controller.
Data transfer by CAN DSP algorithm creating, simulation data creating and test result verification by Matlab.
DSP and ARM interface development.