Background 10+ yr exp. in C programming and trouble-shooting with embedded system

Summary 10+ yr exp. in TCP/IP protocol internals and socket based network applications
10+ yr exp. in UNIX/Linux/VxWorks/Nucleus application/kernel development
4 yr work on Windows application programming with Visual C++/MFC
2 yr work on JavaScript, PHP, and MySQL based web application development
Ability to rapidly understand new code bases and become team\'s domain expert
Experience in product life-cycle from its definition to release and maintenance
Self-motivated team worker with ability to deliver quality code on schedule

5/04--now Confidential, San Jose, CA
Experience Sr. Software Engineer

• Implemented industry leading Content Security Management (CSM) products
• Added new features to firewall and enhanced features with new requirement
• Ported 32bit Web CFS server to 64bit one with huge amount ratings in cache
• Implemented signature based deep packet inspect (DPI) for application control
• Architected and implemented HTTP proxy with content filtering and cache
• Worked with firmware team on multi-core processor based firewall appliances

1/00--5/04 Confidential, San Jose, CA
Principal Software Engineer

• Architected and developed Wi-Fi router integrated with SIP phone
• Brought up and developed SIP phone using uCLinux on TI TNETV1060
• Brought up SIP/H.323 integrated gateway using Nucleus on ARM7 TDMI
• Brought up MGCP enterprise gateway using VxWorks on MPPC860/850
• implemented VoIP gateway boot sequence with MPPC assembly code
• Wrote drivers for flash memory, Ethernet, TI/DSP HPI, codec in VxWorks
• Designed and implemented frame category switch feature in VoIP gateway
• Designed and implemented PPPoE and DHCPc to make internet access easy
• Implemented VLAN tag and UART in Nucleus based residential gateway
• Implemented the traffic filter, access list, NAT, and IPSec for IAD security
• Implemented multi-queues in Ether driver to shape outgoing traffics for QoS
• Drafted exhausted testing plan to make VoIP gateway into commercial quality
• Solved problems from customers and fix field-specific bugs on customer sites
• Involved in architecture design of VoIP soft-switch and IP PBX system
• Implemented complex call controls like conference, transfer, call waiting, etc.
• Developed adaptors with MGCP, SIP, and H.323 in multithread environment
• Developed MGCP call agent and virtual SIP user agent on Linux/Windows
• Implemented SIP UA based on RFC 2543
• Implemented Masquerading for MGCP in Linux kernel module
• Created daemon for MGCP Masquerading management using Linux proc file
• Debugged complex software under multi-thread/-task in Linux and RTOS
• Handled multiple overlapping tasks on schedule
• worked together with contract hardware and software engineers for projects

6/98--1/00 Confidential, Fremont, CA
Sr. Software Engineer

• Brought up ATM switch board for DSLAM with IDT switch/PMC DS3 chips
• Designed and implemented control path to ADSL line cards for management
• Designed and implemented private MIB for DSLAM and implement MIB II
• Developed ADSL router and implemented Ethernet and ATM/SAR drivers
• Developed SNMP and HTTP management agents in DSALM/ADSL router
• Developed and tuned IP routing and learning bridge functions for ADSL router
• Designed and implemented RFC2364 based PPP over ATM (PPPoA)
• Designed and implemented RFC1483 IP/bridge over ATM for ADLS router
• Developed IP routing protocol module like RIP/RIP2 and IP NAT module
• Developed DNS proxy in router for internal host to resolve domain name
• Developed TFTP server and client into ADSL router for firmware upgrade

8/95--6/98 Confidential, Fremont, CA
Software Engineer

• Developed sync/async and multi-link PPP for ISDN/modem router products.
• Developed PPP including LCP, IPCP, IPXCP, CCP/compression and others
• Developed embedded HTTP server in Modem router, using dynamical HTML
• Developed embedded DHCP server and client and relay
• Developed network management software using Visual C++/MFC based GUI
• Ported WinSNMP and related API DLL from Win16 to Win32 environment
• Designed MIBs and put MIB objects into SNMP agent of ISND/Modem router
• Developed network toolkits in C/C++ and Perl with object oriented program
• Implemented connection level internet access proxy based on SOCKS 4

8/87--8/92 Confidential, Shanghai, P.R.China
Researcher and Instructor

• Participated in developing a distributed MIS based on UNIX and client/server model as well as TCP/IP protocol suite, where I was responsible for porting
• TCP/IP modules, Socket IPC module from BSD UNIX to UNIX version 7 in kernel, and developing some system calls and utilities in UNIX v7.
• Participated in developing Chinese bank computer network systems based on mainframe, PC/386 (run XENIX), SDLC/SNA, and IBM3270/4700 data stream, where I was responsible for developing device drivers in Xenix kernel.
• Implemented a customized Pascal compiler using LEX/YACCindependently

Education
MS, EE - Image/DSP Signal Processing
MS, Computer Science
BS, Computer Science and Engineering

References Available upon request