PROFESSIONAL SUMMARY:

• 12+ years of experience in Software development.
• Expertise in C++, C, Python, Linux, Unix, RTOS, POSIX API, Linux Device Drivers, Linux Kernel Module programming, TCP/IP Network Programming, IPC and Multi - threaded programming.
• Experience in Kernel and User Space programming for Ethernet, WiFi, USB, I2C and SPI.
• Experience in customizing and building Linux images including Linux tool chains, BSPs, and libraries.
• Familiar with Python, Shell Scripting languages for Build and Test automation.
• Expertise in debugging and resolving software system issues.
• Experience in User Interface design and development.
• Contributions to cppcheck (Static Code Analysis tool).

TECHNICAL SKILLS:

Languages: C (C99, GNU C Extensions, C11), C++ (C++98, C++03, C++11, C++14), Python, ARM/x86 Assembly Language, Shell Scripting, PERL.

Operating Systems: Linux (RHEL, SLES, Fedora, Ubuntu, Embedded), Android, Solaris, HP-UX, OpenBSD, VxWorks, ThreadX, Mac OS, Windows.

Databases: SQLite 3, MySQL, MS SQL Server.

GUI Libraries: Qt4/Qt5, MFC.

Network Protocols: TCP/IP, HTTP, SNMP, FTP, WebDAV, IPsec, SMTP, UPnP, IPP, LPD, MDNS, SSH.

Embedded Interfacing: USB, SPI, I2C, GPIO, UART.

Analyzers/Debuggers: gdb, valgrind, gcov, gprof, Bullseye Coverage, Coverity Prevent, DUMA, cppcheck

Development Tools: Source Insight, cscope, Eclipse, Visual Studio, KDevelop, geany, Brackets, WindRiver WorkBench, Pycharm, Android Studio.

Network Tools: Wireshark, tcpdump, netstat, SOAP-UI, ApacheBench.

Unit Testing: Google Test, Python unittest, CppUnit.

BugTracking Tools: Jira, Bugzilla, Trac, Rational ClearQuest.

Libraries and Frameworks: Boost, STL, libCurl, libzip, libssl, libjpeg, libpcre, libnetsnmp, libssh.

Software Configuration Management: SVN, git, Perforce, IBM ClearCase.

Build Systems: BuildRoot, Yocto, OpenEmbedded, Custom Makefiles, CMake.

Continuous Integration Tools: Hudson, Jenkins, Travis CI.

Modelling Tools: StarUML, MS Visio, IBM Rhapsodi

Development Methodologies: Waterfall, Scrum/ Agile

Web: JavaScript, HTML5, XML, CGI, SOAP, REST, WSDL, JSON

Advanced Programming: Embedded System Development, Linux Driver Development and Porting, Linux Kernel Optimization, Network Programming, Test Automation, Linux USB, Data Visualisation, DTV/STB Middleware, Service Oriented Architecture, UPnP, DLNA, High Performance Computing, Digital Imaging, Digital Printing Protocols.

PROFESSIONAL EXPERIENCE:

Confidential, Wilton, CT

Software Engineer

Role & Responsibility:

• Fixed the inline calibration algorithm for Reticle pre-alignment. (C/C++, Linux)
• Developed Unit Test modules using GoogleTest. (C++)
• Developed code to simulate quad cell measurements for inline calibration. (C/C++, Linux)
• Developed interface to read Pre-Alignment specific machine constants through RPC interface.
• Developed CPD software test implementation for IP based Bar Code Reader. (C/C++, Linux, Network Programming)
• Improved the Robot driver to gracefully handle the failures. (C/C++, RPC, Linux, VxWorks)
• Developed Auto-Testers using Python Unit test to verify implemented/fixed features and to improve the overall code coverage. (Python, XML)
• Refactored Reticle handler’s Turret module written in C to C++.

Environment: Wind River Linux, VxWorks, C, C++, Custom RPC, Python Unittest, Google Test, XML, Test Driven Development

Confidential

Software Engineer

Role & Responsibility:

• Developed Network port filter module in C++ to block/unblock network ports using iptables.
• Developed Server-Side Session Management in C++ for Web monitor.
• Developed email sender in C to support Scan-to-email/Fax-to-email feature.
• Developed POP3/IMAP emails download and email header/attachment extraction interface in C to support Internet Fax.
• Developed interface in C/C++ to send/receive email delivery notifications (MDN/DSN) for Internet Fax.
• Developed WebDAV upload interface in C to support Scan-to-WebDAV/Fax-to-WebDAV.
• Developed FTP upload interface in C to support Scan-to-FTP/Fax-to-FTP.
• Developed SMB upload interface in C to support Scan-to-SMB/Fax-to-SMB.
• Developed SMB Browser interface in C++ to support Samba Browser functionality.
• Developed Connection Test API in C++ for FTP, SMB and WebDAV.
• Ported ASIX USBNET driver to printer board. (C, Linux Kernel)
• Implemented LPD (Line Printer Daemon) Protocol in C.
• Investigated and fixed ping latency on printer Wi-Fi interface. (Wireless Tools)
• Customised Web Server (lighttpd) to enable HTTPS, WebDAV and authentication from database. (C, HTTP Authentication Protocols)
• Developed Address Book for WebMonitor. (C, HTML, JavaScript, CSS)
• Developed Web Print feature to enable driverless printing. (C, HTML, JavaScript, CSS)
• Implemented IPP (Internet Printing Protocol) request parsing in C to enable Android Mobile Printing.
• Developed IPP Scan for MFP in C to enable Android Mobile Scan.
• Developed interface in C to check authenticity of consumables using I2C based smartIC.
• Added user space interface to watch for events from MFP keys. (C, Linux Kernel, UIO Drivers)
• Developed Touch Event injection module in C++ to enable remote control over Printer Touch panel.
• Fixed bugs and performance issues in Apple Airprint support. (C, Unirast)
• Integrated video playback support using GStreamer. (C, GNU AutoConf)
• Integrated Mesa-3D OpenGL library in QtWebkit to enable advance features in Web Browser.
• Ported Network Card Authentication support with PaperCut code written in Python to C.
• Optimised DB access routines. (C, sqlite3)
• Deployed cron daemon in MFP board to perform routine tasks. Wrote cron jobs for desired routine tasks.
• Ported CUPS based print filter to Solaris 10. (C, GNU AutoConf)
• Ported GDB on ARM based Printer Board. (C, GNU AutoConf, Makefiles)
• Fixed bugs and performance issues in Touch Panel Driver. (C, Linux Kernel)
• Developed interface in C++ to configure SNMPv1/v2c/v3 for Printer.
• Enabled IPSec Support in Linux Kernel and Ported IPSec tools to ARM Board. (Linux Kernel Configuration, GNU AutoConf, Makefiles)
• Developed interface to encode Scan/Fax data and embed it into JSON for securely sending it over HTTPS. (C, JSON, REST)
• Fixed the security issues identified by Acunetix (Web application security scanner) in Web Monitor.
• Performed Microsoft WHQL (HCK) Driver Certification tests on Printer Driver.

Environment: Linux 3.2, ARM, C, C++, JavaScript, HTML5, SQLite3, Qt5, STL, Python, Marvell 88PA6170 SOC

• Confidential .
• Developed Network Manager in C/C++ to control the network interfaces.
• Developed gcode Downloader/Decoder/Extractor/ to enable AWS based Cloud Print Support.
• Developed WiFi connection manager in C/C++.
• Customized Web Server (lighttpd) to use it as proxy to get Camera images/Video stream from streaming server.
• Fixed latency issues in 3D object’s video streaming server written in C.
• Developed CGI scripts in C to interact with 3D Printer through Web Interface.
• Integrated open source libraries in 3D printer SDK. (openssl, net-snmp, curl etc)
• Developed sub agent in C to retrieve 3D Printer status information using net-snmp.
• Developed API in C to capture and send 3D object snapshot and print status over email.
• Enhanced the performance HTML5 based GUI by applying standard optimization methods.
• Fixed performance issues in Qt Webkit based Embedded Web Browser. (C++, Qt5)
• Added device tree entries for I2C/SPI devices. (Kernel Configuration)
• Ported Display and Touch Panel driver to Android for Printer Board.

Environment: Linux 3.2, ARM, C, C++, JavaScript, HTML5, SQLite3, Qt5, STL, Python, Marvell 88PA6170 SOC

Confidential

Lead Engineer-II

Role & Responsibility:

• Developed UPnP - Scheduled Recording Service in C++.
• Developed UPnP - Connection Manager Service in C++.
• Fixed interoperability issues with Cisco and Motorola devices.
• Fixed performance issues with database manager module written in Embedded SQL with C++.
• Fixed issues reported by UPnP and DLNA CTT.
• Configured Ethernet over USB and modified dropbear to enable ssh login to ediary. (C, Kernel Configuration)
• Developed eDiary photo viewer GUI and backend functions in C++.
• Developed XML parser for reading chart XML file in C++.
• Ported Charting library written in libgdi to C++ based Samsung Proprietary GUI library for LFD/DTV.
• Developed linear gradient fill algorithm in C for shapes, charts and table element.
• Modified uncrustify code beautifier for auto insertion of comments in C/C++ source code as per Samsung Coding Guidelines. (C++)
• Developed Embedded Web Browser in C++, Qt4.
• Developed XML based UI Customisation feature in C++.
• Developed Screen Sharing feature in C++, Qt4.
• Fixed image streaming performance by applying image quality adaptation.
• Confidential
• Developed Copy application in C to make legal copies of Blue-ray Disk in Blue-ray Player.
• Designed and developed GUI and MP4 sanity checker in C++ for DECE Content Packager.
• Developed interface in C++ to upload the packaged MP4 file onto DECE content Server.
• Fixed performance issues in copy application.
• Confidential
• Developed EPG (Electronic Program Guide) Application for Hotel TV in C++.
• Developed Image Transition effects for Digital Photo Frame in C++.
• Implemented RSS feed downloader and reader application in C++.
• Developed boot progress indicator in C for Digital Photo Frame.(C, Linux Kernel)
• Developed firmware downloader and update manager in C/C++ for Digital Photo Frame.
• Implemented a module in C++ to extract metadata information from photos and music files in Digital Photo Frame. Additionally this module builds the SQLite database of information extracted from files.
• Ported I2C based Touch Panel Driver to Digital Photo Frame. (C, Linux Kernel)

Environment: Linux 2.6/3.2, ARM, MIPS, C, C++, SQLite3, Qt4/Qt5, MFC, Proprietary/Broadcom/Marvell SoC, CppUnit

Confidential

Member Technical Staff

Role & Responsibility:

• Developed Utility in C to parse Linux Kernel Patch files and prepare a HTML report.
• Developed GUI in C++, Qt3 for Automated Migration Tool.
• Developed PERL scripts for automated migration from RHEL 2.1 to SLES 9.0.
• Developed a patch to virtually increase the memory up to 511 GB on IA-64 Linux machine.
• Customized kernel configuration to reduce kernel image size.
• Analysed kernel patches of the distributions like RHEL (2.1, 3.0, and 4.0), SLES (9.0) and Miracle Linux.
• Performed investigation over the HPC products offered by IBM (iSeries pSeries, xSeries, BladeCenter and System Cluster series).
• Performed investigation for fast booting in Linux.

Environment: Linux 2.6, IA-64, C, C++, Qt3, MySQL, NEC HPC Servers