OBJECTIVE
Experienced Embedded Software Engineer seeking technological opportunity to use extensive set of skills and knowledge in developing, debugging and troubleshooting embedded system for telecommunications/electronics based products.
SKILLS SUMMARY
Senior software engineer with broad experience in embedded system software design/development/testing, device drivers, telecommunication protocols, on-chip debugging(JTAG based), hardware/software interaction, scalability testing, and WindRiver’ dynamic execution profiler for overall system software optimization. I have hands on experience using variety of traffic generators, data analyzer, oscilloscope, and test equipments. Currently member of a software team developing next-generation Converged Cable Access Platform (CCAP) Cable Modem Termination System (CMTS) – that allows cable operator to combine CMTS and edge QAM functionality in one hardware solution and promises significant improvements in QAM channel density. For the previous past three plus years, my efforts have been devoted to embedded software development for fiber-based communications systems – FTTP/FTTH, which provides triple play services of voice, data and video to residential and business users.
TECHNICAL SKILLS
Development Languages/Tools/Environments: C, Knowledge of C++, Yang (high-level data modeling language), ConfD, MIPS Architectures, Wind River’ Wind Ice/2 emulator, Work Bench debugger, IBM Rational Clear Case, IBM Rational Clear Quest, Cygwin, Klocwork, Tera Term Pro, Vim, gVim, Cscope
Operating System /Target Platforms/RTOS: Knowledge and working experience of VxWroks, Embedded Linux, and Microsoft Windows
Network Configuration: TCP/IP, DNS
Telecom Standards/Protocols: Ethernet, WLAN, Knowledge of G983.x (B-PON), G984.x (G-PON), DOCSIS, CCAP (Converged Cable Access Platform) CMTS (Cable Modem Termination System), CDMA, GSM, HTTP, FTP, IEEE 802.X standards, MIMO, OFDM, IP SEC, SSL, SSH, WEP, SIP
Traffic Generators/Analyzing Tools: SmartBits, Adtran OPTI-6100, T-BERD 310, Fluke 635 QuickBERT-T1, JDSU Smart Class E1, Ethereal, Acterna, Wireshark, Knowledge of TCPDump, Oscilloscope, Data Analyzer, Spirent
EXPERIENCE
Motorola Mobility Inc Lowell, Massachusetts, USA [Feb. 2008 – Current]
SENIOR SOFTWARE ENGINEER
[Aug.2012 – Current]
Senior software engineer responsible for next-generation Converged Cable Access Platform (CCAP) Cable Modem Termination System’ (CMTS), software design, development (C Programming language), unit test, and software quality improvements.
• Design, development and unit test of Fault/Alarm management application from scratch.
• Implemented Fault/Alarm management Embedded Linux application for service manager card.
• Created library for other software modules of Video Service Platform (VSP) to provide interface with Fault/Alarm management using third-party application interface specification (AIS).
• Integrated Fault/Alarm management with variety of fault detecting software modules defined across the Video Service Platform (VSP) system. Performed integration testing.
• Integrated and tested Alarm/Fault software module with system level log mechanism to log the system level fault conditions. System level logs are used by operator and system support engineer to analyze root cause of system failures.
• Implemented embedded linux threads to handle Alarm/Fault configuration and CLI command requests. Performed complete integration test to verify the functionality.
• Integrated and tested Alarm/Fault LED support for Video Service Platform (VSP).
• Performed Alarm/Fault redundancy test on service manager card of Video Service Platform (VSP).
• Concurrently performed design, implementation and unit test of Command Line Interface (CLI) in support of service manager card. CLI is used for configuring and monitoring software, hardware and network connectivity.
• Implemented CLI commands using third-party data modeling language Yang. Performed unit and integration test for implemented CLI commands.
• Created software design document to describe full functionality and interface of Alarm/Fault management for service manager card.
[July 2009 – July 2011]
Senior software engineer responsible for AXS2200 Optical Line Terminal (OLT) and Optical Network Terminal (ONT)’ software design, implementation (C programming language), unit test, feature enhancement, scalability test, software quality improvements.
• Design, implementation and unit test for OLT’ command line interface, provisioning manager, statistics manager (OLT & ONT), fault management (OLT & ONT).
• Programmed T1/E1/J1 framer and LIU device driver in unstructured TDM mode (SAToP) for new ONT product line, using C programming language.
• Developed interrupt routine for LOS, AIS conditions for T1/E1 physical interface.
• Implemented software routine for Error Seconds (ES), Severely Error Seconds (SES), and Unavailable Seconds (UAS) counters for pseudowire interface.
• Teamed up with group of software, hardware, and third party vendor folks to identify and address the LIU and Circuit Emulation Services device interface (clock, data, and error free transmission) issues. Mentioned investigation also involved reviews (or revision) of hardware schematics, hardware board probing to measure and analyze clock and data using oscilloscope and data analyzer.
• Designed and implemented new version of software to add/modify manufacturer’ data into EEPROM (connected via I2C interface) for OLT. Ported and adapted OLT design of the same to ONT product line.
• Executed end-to-end system test cases to test the statistics module for variety of features & interfaces including but not limited to Ethernet, VOIP, T1/E1/J1, IPTV, ACLs, VLANs etc using Smartbits 6000C/B, Acterna, JDSU etc test equipments.
[Feb.2008 – July 2009]
• Proven success in enhancing existing OLT system' command line interface software with new features - IEEE802.1Q (VLAN tagging), IPTV enhancement, Multiple Transmission Container (T-CONT G984.3), Power over Ethernet (PoE - IEEE802.3af).
• Stepped up to Design, implement and test OLT’ provisioning module for External H.248 and Static IP in a given short time frame.
• Contributed debugging and fixing bugs in area of battery and LED operations for variety of ONT product lines. Some of the investigations have involved close team work with hardware engineers.
• Stepped up for design, implementation and unit test of OLT’ statistic manager for IP ACLs and MAC ACLs. Mentored Motorola China team member for the same on ONT product line.
• Executed scalability test and generated reports for each release to qualify and compare OLT’ overall performance per release.
• Analyzed scalability test reports and identified critical sections of code using WindRiver profile scope (profiler). Came up with best software solution to improve OLT’ performance when applied.
• Worked on ONT software image burning to bring up ONT product line with default/customer required settings.
• Depl...
Login or Register to view the full resume.
