Objective

§         Obtain a lead/architect role in an embedded/real-time SW/FW environment, to help company’s growth through application of my technical and interpersonal skills, further my career growth, build teams, promote continuous improvement and have fun.

Skills & Knowledge

Embedded Software/ Firmware Development Skills:

Embedded Linux System (device driver, BSP, U-Boot, RedBoot, networking, power management) and application level programming. Working knowledge of real-time/Embedded software development & integration, Wireless routers; Satellite set-top box. Power Management of Hand-Held device. SW/ HW interfacing, HW initialization code (boot-loaders), memory testing algorithm, task synchronization. Deadlock and priority inversion prevention, code optimization. Digital and analog oscilloscopes, logic analyzers, emulators (ICE), JTAG. , image processing libraries (OpenGL. LCMS, Open CV, Intel Integrated Performance primitive Intel IPP). Knowledge of Open Embedded, Bluetooth (BLE), ZigBee, 802.11P, IEEE 1609 protocols, BLE, J2735 SAE standards.

Software Design:

Mobile OS:

Fluent in Real-Time, Embedded, Multi-threaded, Distributed software design using Structured or Object Oriented methodologies. Full cycle software development (Call processing, Fault management, OAM&P), State Machine development, multi-threaded software development and debugging. C++ STL and STD library, QP frameworks.

Mobile Power Management, Power Management Integrated Chip (PMIC), Symbian, Embedded Linux, preliminary Android plus hands on experience (dated) J2ME and BREW. Linux Power Management, CPUIDEL subsystem.

Microprocessors:

Qualcomm (ARM based) SOC. Atmel ARM926EJS (ARM), AVR32, ATxmega & ATmega family. Cavium Network Octeon (MIPS), QorIQ (P2020), i.Mx Freescale, Blackfin family (BF533, BF561), OMAP platform 5912, MC6800, MC68020/30, PowerPC family (MPC500), Cold Fire (MC68376) and Intel’s 80188EBB; BCE6348 and BCE6358 Broadcom Controllers and PIC and MSP430 series. Worked with CCS C/C++, gnu, compilers

Programming Languages & Object-oriented:

Strong C, C++ programmer, Symbian (C++), J2ME &Java. Assembly, Python, PERL, Shell scripting, CSS, HTML, XHTML, JavaScript, XML, PROTEL, HTML, TCL. UML 1.2, Design Patterns (DP) (used State, Strategy, Facade, Microkernel in projects), Rhapsody, ROPES, RUP & Rational Rose. Knowledge of MFC and GUI development.

RTOS & OS:

Commercial RTOSs: Embedded Linux, RTXC, Nucleus, QNX, VDK, uC-OS. Proprietary RTOSs: SOS (Nortel) and EXEC (Motorola). Knowledge of Unix IPC (system and socket programming). Familiarity with OSEK/VDX.

Technologies, Networking& Wireless Telecommunication

In depth knowledge of CDMA 2000(EV_DO), IS-95 (A, B), EDGE, TDMA, GSM, FDMA. 3/4Gwireless (CDMA2000, WCDMA, Wi-MAX (802.16X), LTE. TCP/IP and its related protocols, Wi-Fi 802.11 protocols, 802.1X, EAPOL, RADIUS, TFTP, SMPP, RTP, RSVP.  VOIP protocols (SIP, H323, MGCP).

Detailed knowledge of layer2 and 3 protocols; OpenVPN; IPsec, SSL/TLS, 802.1X, RADIUS, EtherCAT, CAN (Controller Area Network) bus, CANopen technologies and DS301-DS402 standards.

ATM. Layer 2 protocols (Ethernet, PPP, PPPOE).  High level Knowledge of IP Multimedia Services (IMS), SONET. QoS, ARP, Spanning Tree. Legacy protocols (SS7 ISUP, ISDN).

Software Tools:

IAR Embedded Workbench, AVRStudio4 and AVRStudio32; Several Eclipsed based IDE,(Wind-River Workbench, Mentor Graphics’, DevRocket); Visual C++, MS Office, VISIO and MS Project, Understand C++; Clear case, dbg, Purify, Expert Sniffer, Sublime, PVCS, DDTS, Vantive, Rhapsody, Code Wright, CodeWarrior, Source Insight, synergy, CVS,  Bugzilla, Subversion; Trac; GIT, SVN, Crucible, Jira.

Work Experience: Cymer; San Diego; CA 92127;

Dec 2013  to present:

Software Solution Architect

(Contract)

·               Developed Linux user space C++/Python (Gstreamer, plugins), device drivers in C Video (V4L2) I2C driver) and its interface to MAX64380 H.264, AAC CODEC to support High Definition (HD 1080p) resolution.

·               Full cycle SDLC (C++ on VxWorks 6.9) Software is implemented as a C++ library on VxWorks 6.9. Managed a 4 member development team. Man-month estimate, sitting on CCB board.

·               Used design pattern to architect, design and implement an EtherCAT based connectivity layer (middleware) solution to abstract physical bus connectivity for Cymer (EUV) chip manufacturing equipment software. Work spanned across several technologies (EtherCAT, Controller Area Network (CAN), CAN over EtherCAT (CoE), CANopen), device selection, (ELMO MC Gold Bell drive, EL4/3001, 1809/2809). Prototyped a slave device.

·               Interfaced with Electrical, mechanical, mechatronics subsystem engineers to fulfill EtherCAT subsystem integration within the overall system. Used Wireshark to verify EtherCAT packets content during testing phase.

·               Main interface to Acontis to acquire and integrate their EC-Master (EtherCAT stack) within the middleware.

·               Authored requirements, high and low level design, test plan and technology road map documents. Improved the software architecture, by introduction of asynchronous communication mechanism and support for various EtherCAT network topologies. Added support for flexible network topology.

·               Main interface with vendors (hardware & software) (ELMO, Beckhoff, Acontis) for device selection, technical issues, license acquisition to facilitate integration of their products within Cymer products.

Qualcomm; San Diego; CA 92121; SOC lead Engineer (power) ;

Sep 2012 to Nov 2013:

(Contract)

·               Focused on MSM Power Manager Power (MPM), Modem (LTE), Security, watchdog, Flash (wear-leveling).

·               Worked on Android integration. Integrated and packaged low-level software within Android platform for several members of Qualcomm Snapdragon family.

·               Designed a prototype safety application for automotive intelligent Transport system (ITS), based on Wave (Wireless Access in Vehicular Environment), DSRC IEEE 1609 protocol. J2735 (SAE) and (FHA) standards.

·               Developed code to validate MPM and high level modem blocks using Lauterbach TRACE32 for Qualcomm snapdragon SOC (multi-core S4). Used digital scopes, logic analyzers, Lauterbach TRACE32 in the lab.

·               Developed driver for several Qualcomm proprietary PMIC (SPMI interface) to validate interaction between PMIC, MPM and other Power Management HW blocks for Android on Snapdragon 800 series. Validated specification for Rock Bottom Sleep Current (RBSC) measurements. Developed code to validate Aggressor Victim scenarios (identify critical voltage drop across several voltage rails). Integrated drivers for Android.

·               Worked on watchdog, security hardware blocks on multi-core snapdragon SOC (Android driver integration).

·               Troubleshot low level core bring-up for ARM (issues ranged from dealing with scatter file, stack corruption).

CISCO Consumer Product Division; Irvine, CA, 92617

March 2011 to Sep 2012;

Lead Firmware Engineer

(Contract)

·               Architected, designed a parental control solution on an Internet Access points. Work included two way communication mechanisms between Kernel to User space and vice-versa. Comparative study on using Netlink socket, Proc, Sys FS and their impact on performance, software maintenance.

·               Full cycle design and development C/C++ (STL, Boost) on an Embedded Linux (BSP and application). BSP (U_Boot) porting (DDR3, NAND Flash, Ethernet PHY support), troubleshooting board bring up on a Freescale QorIQ based (P2020). Worked with both build root and Open Embedded build systems.

·               Re-engineered the custom Linux Networking code to ease different 802.11 technology integration. Work spanned across, mac802.11, SoftMac, Netfilter, Iptables, Conntrack. Linux CPUIDEL subsystem.

·               Led a project to prototype use of Android in set-top box environment instead of Linux based platform.

·               Wrote and troubleshot a FB based video driver, dealt with system initialization issues (mainly clock speed, SD interface). Back ported Linux AP (access point) mode code from Linux 2.6.38 to 2.6.32 kernel. Modified driver code for Marvel 802.11 Chip. Integrated SysStat module (performance management) to custom Linux platform.

·               Worked on establishing Android system setup and authored a strategy document to support 802.15.4 based technologies (BLE) within Cisco product line. Worked with CODECs (H.264, AAC, etc.).

·               Architected and implemented a proprietary wireless system to run on MSP430 with no OS and developed test fixture for the system.

·               Worked with Freescale and Mentor Graphic IDE tools and build systems, LTIB, build-root, Mentor’s System Builder, Code Warrior, code profiling, SVN, Trac, WebSVN, GIT. Worked with MontaVista Embedded Solutions (CGE6.0), Knowledge of MontaVista toolset (DevRocket, MVIP, Open Embedded, bitbake).

·               Architected, developed a Security solution SSL/TLS based VPN for a MIPs based processor (Cavium Octeon).

·               Wrote Python code (server side (Cherrypy and Tornado)) for a web based User Interface on embedded devices.

·               Wrote low level SPI and I2C Kernel Code to control Digital to Analog (DAC) devices which controlled an IEEE 1558 device. Low level, (U-Boot) work for Cold-Fire family products MFC5742 to interface with new code/data Flash. Developed Linux drivers for a FPGA on an ATMEL ARM926-EJS. Interfaced with customers, vendors, distributors (Avnet, Arrow).

Shure Technologies Niles, IL;

 Jan 2010 to Feb 2011;

Software Platform Architect

(Contract)

·               Architected and full cycle SW development to add SD card storage to wireless microphones on IAR Workbench, Studio4 and AVR32 Studio in C for ATMEL based systems with no OS. After reverse engineering the system, I ported the code base from an 8bit based ATXmega application to an AVR32 bit chip. Besides development, I led and interfaced with internal (cross functional) and external customer/vendor.

·               Architected and full cycle software development of VOIP solutions (C, C++) on Windows and VxWorks.  Worked on BSP and porting an existing IP Phone to a new HW/SW platform for a Broadcom Chip and PhonexExchange SDK. Used VxWorks Workbench 3.0 and Tornado 2.2 and Wind River toolset to develop SIP based IP Phones. Developed 802.lW STP and RSTP protocol software.

·               Full cycle software development in uClinux for a BF537 DSP and PowerPC 440EP, (ported a SIP stack and worked on the interface between the BF537 and Altera FPGA (SPORT interface). Wrote driver for the TWI interface and display devices. Worked with several CODECs (G.711, G.719, MP3, AAC, H.264).

·               Re-engineered a legacy system to use virtualization technology, developed future product road map. Worked with Virtualization products from VMware. (VMware Server, VMware Studio, Vappliances).

Motorola Mobility Libertyville, IL;

Feb2008 to Jan 2010;

Lead Embedded Software Engineer

(Contract)

·               Architected and full cycle software development for a navigation system on Symbian C++ and Linux on Motorola phones (system partition). Defined interfaces between system components GPS, Linux (Frame Buffer, LCD display). Developed low-level frame buffer (FB) device driver on Linux

·               Evaluated several phone Web based application framework, such as PhoneGap, Work\Light, etc. Worked on system software to support Mobile IP support.

·               Worked on software to abstract air interface technology (Wi-MAX, LTE, CDMA2000) from call phone software.

·               Added features, maintained, ported of the GKI (General Kernel Interface). GKI is a generic interface (middleware) to handset application software that in turn interfaces to different underlying OS (Symbian, Linux, VxWorks, or Linux). Wrote drivers and a multi-threaded library for the mobile handset display screen. The library managed the color management of the screen and different graphic file format displays (BMP, TIFF, and GIF).

·               Developed a Location Based application (LBS) for N95 phones in Carbide C++ and Nokia SDK Symbian C++ (S60).  Led a project with 4 team members (man month estimation, feature assignment, project status reporting to management, etc.). Customer interface for pre-sale (requirement) and post-sale (training customer in India, Japan).

ISCO International, Elk Grove, IL

Dec 2006 to Feb 2008

Firmware/ DSP Software Architect

(Contract)

·               Led architectural definition (5 members) of the next generation product (processor selection, interface definition), system, and bus interconnects between control processor, FPGA and DSP.

·               Full cycle SW development Carbide C++ (CSY, TSY, etc.) Series60 in Symbian 8.2.Full cycle software development in C/C++ on VisualDSP++ IDDE (Blackfin BF533 and BF561 (Dual-Core)) DSP.  Work on Startup Code, LDF, FFT, FIR, IIR filters, JTAG, Flash driver and software driver for SPI, PPI SPORT ( interfaces that connected the Blackfin to Xilinx FPGA and ADC/DAC)

·               Led a 3 member team to develop a Java application on Eclipse. Wrote software requirement and project managed (man-month estimate, cost control) outsourcing activities. Wrote part of the functionality and maintained it later.

·               Established Configuration Management (SCM) process installed and maintained Subversion and Trac in the company and trained the personnel.

·               External Customer interface (Mexico) to solicit requirements and post-sale support.

Westel Corp, Naperville; IL; 60563

Dec 2005 to Dec 2006

Firmware Architect

(Contract)

·               Architected and full cycle software development in C on Linux (Fedora) for an ADSL based product. Integration of Open Source modules SysStat (performance management) and OpenSwan (IPSec) to the existing Linux platform and application software. Linux Kernel development (device driver). Bug fixing for Broadcom BCM6358 BSP. Implementation of 802.1X, WPA and RADIUS client side (NAS) on a CPE. IMS feature implementation on a CPE (SIP) to interwork with GSM UMTS telephony. Bug fixing in Linux networking code (net filter, Iptables (IP ALGs) and other device driver. Linux network driver performance improvement.

·               Functional specification, high/low-level design, implementation of 802.11d and 802.11i set of protocols. Wrote Minicom and shell scripts to semi-automate the testing phase.  Worked with OMAP 5912 platform, Wireless extension on Linux.

Phillips Semiconductor San Jose, CA;

Feb 2005 to Dec 2005

Senior Firmware Engineer

(Contract)

·               Full cycle SW development in C on Linux. Implemented 802.11D and 802.11i protocols and preliminary work on 802.16.e support for NXP chips. Worked on PHY and MAC level implementation of 802.11 protocol.

·               Architected, designed and implemented (team of three developers) support for Short Message Peer to Peer (SMPP) protocol. Developed the Functional Specification (FS) and High Level Design (HLD) and Low Level Design (LLD) to integrate SMPP (a TCP/IP based protocol)) subsystem software within the existing product.

·               UNIX and Linux IPC and network programming (sockets, streams). Used Singleton, Strategy Design Patterns.

·               Full cycle software/firmware development in C, C++ on VisualDSP++ (BF533) and Linux for Wi-Fi and Wi-Max chips. Full cycle embedded software development in C++/C on a Solaris 9/QNX4.2.

Quarter Lambda Corp. San Marcos, CA:

Nov 2002 to Jan 2005

Software/Firmware Manager/ Architect

(Contract)

·               Managed software development for medical devices (multi-site 15 people internationally) with direct report to the VP of Engineering. Hands on experience with FDA specs, 21 CFR-8xx, especially CFR software validation.

·               Led the software development operation within the company. Company software product was in two different areas, mobile device Symbian C++ (CodeWarrior) Series60 in Symbian 7.1 and industrial control development..

·               Led the Performance enhancement by changing the code to a multi-threaded structure. Established SCM by using Clear case, Vantive to manage code churn and bug tracking.

·               Developed Bluetooth (client) software for the mobile handsets (GSM and CDMA) to interact with the Telematic application and industrial control automation systems. Wrote application software to interact with other tasks and subsystems over the CAN and Most (Media Oriented System Transport) buses.

·               Wrote and integrated USB host and client stack and audio and communication class driver requirements.

·               Integrated Bluetooth stack (BlueZ) into Linux, developed tools in Java and PERL to test integrated software.

OpenTV, Naperville, IL,

Oct 1999 to Oct 2002

Lead Embedded/ Firmware Engineer

(Contract)

·               Full cycle SW development in C/C++, and Java (Device Mosaic) on Linux and Windows for a cable set top boxes on Windows NT and Linux.  Developed I/O software for set-top boxes in VxWorks, Linux and QNX.

·               Ported Device Mosaic to a proprietary platform, Developed USB interface functionality for the set top boxes. Porting and integrating third party software. Used html, CSS, JavaScript, XHTML to build live and test web pages to verify W3C conformance. Used Clear case, Vantive and other SCM tools.

·               Used design patterns to improve architect, document and facilitate future maintenance of the subsystem.

·               Full cycle application and platform SW development in C/C++ on Nucleus RTOS for embedded processors (MC68360 and PowerPC). Development was in both UNIX & NT environment. Developed VOIP (Voice over IP) and FOIP (Fax over IP) related software. Made changes at the RTSP layer. Developed a proprietary interface to the SNMP software for network management. Worked with Flash memories to save the database in the Flash. Developed I/O software for the cards to work with the Nucleus.

Motorola Cellular Infra-structure Group (CIG) , Arlington Heights, IL, 60004

Oct 1996– Oct1999

(perm position); Senior Software Engineer

·               Full cycle application/platform SW development C/C++ on UNIX hosts (cross-compiled for MC68030) in the following functional areas: OAM&P, call processing (CDMA, GSM), fault management, operating system fixes, performance improvement, code optimization and tool design (PERL & html).

·               Led a team of three developers (Level 2 support) to investigate and fix urgent software problems in the field. Interfaced with external Motorola customers, traveled nationally, internationally to interface, train customers.

·               OS/IDE and development platform evaluation for a new project. UNIX network programming (sockets, streams)

·               Changed a router and database access related process from a single-threaded to a multi-threaded process.

·               Integrated TFTP software to download boot code and database to a network node (on Cellular/PCS) system. Implemented a feature to hot swap redundant clock cards in a digital system. Project involved direct interaction with hardware (Clock cards were memory mapped I/O). Designed and implemented a feature to automatically swap a LAN upon a fault occurrence on a Token Ring.

·               Worked with Sniffer (Ethereal) and deciphered TCP/IP and Token Ring packets.

·               Customer Interface & training (Korea, Peru, Japan, Mexico across United States). Wrote and updated an existing troubleshooting document, developed two training courses and trained customer’s engineers.

Nortel Networks Nepean, Ontario, Canada; Feb 1993–Oct 1996 (PERM Position)

Software Engineer; Member of Technical staff

·               Full cycle embedded SW development in C/C++ on a UNIX host for the embedded systems (Service Creation Environment (SCE/SCP)) nodes in an AIN network. Developing software on a Unix Box (HPUX9) (a database and transaction-processing server) which interfaced landline and cellular telephony switches (GSM and CDMA). Dealt with performance enhancement, shared memory issues, Unix IPC

·               Led a multi-site team software team in India and USA (RTP) and Canada responsible for a test automation project (man month estimation, project and progress tracking). Wrote product test strategy, product test plan document and test cases. Executed white or black box testing, documented software bugs and followed up with the respective development organization until software bugs are fixed. Developed manual and automated regression package.

Bachelor of Science in Electrical Engineering

·               B.Sc. 1989– 1994 University of Manitoba, Man, Canada. Bachelor of Science in Electrical Engineering (major in Telecommunication), Digital Communication, control theory, advanced math, calculus, differential equations , statistics. Received Ester R. Steel award for high standing in the first two years.

Personal Development:

·               Technical Courses: Wireless Data, PERL, Python, Android and IOS Programming, Object oriented analy­sis and design, Data Driven and structured programming. Design Pattern course. IEEE training. Took many Coursera courses.

·               Personal Development courses: Seven habits of highly effective people, time management, consult­ing, influencing, effective listening, and leadership courses.

Personal Interests:

·               Member of IEEE since 1991, coaching youth soccer, Arduino, following technology trends, reading, camping.