ProjectsAlcatel Lucent Media Gateway (MGW) COTS/CloudAlcatel Lucent integrated Session Boarder ControllerAlcatel Lucent Media Gateway, part of IMS/VoLTE, WebRTC, WebGW.(Nokia MGW’s revenue is TOP #1 in global High density MGW market, according to statistics from Infnetics by Q3 2015)Duties• Lead six scrum teams in MGw software design to deliver high quality product• MGW Cloud/NFV evolution system analysis, design and implementation• Project estimation and manpower resource plan, document and code review• Present MGW technical to stakeholders (e.g. PLMs, Managers) and other developers• Source code stream policy and continuous integration policy definition• Gave training to global Level 2 and Level 3 support team• Joined ALU IMS Cloud architecture virtual design team • Critical customer issue analysing and solvingAchievements- Designed and implemented embeded Linux on purpose-build HW (eight-core MIPS processor)- Designed and implemented MGW on COTS/Cloud.- Dramatically improved system performance in virtualization and Cloud by optimizing system with latest techniques.- Defined the Cloud Lift Cycle Management (LCM) scenarios- Designed and implemented internal communication module (application with JSON and Google Protocol Buffer)- Designed and implemented XML based CLI parser, in-service software upgrade- Together built Static Code Analysis and Continuous Integration.Development EnvironmentEmbedded Linux, MIPS, x86, OpenStack, KVM, Intel DPDK, Open vSwtich, C, C++, Java, GCC, GDB, KlocWork, Yang, XML, JSON, Clearcase/Clearquest, Hudson, Jira, VoIP/RTP, TCP/IP

ProjectsAlcatel Trunking Media Gateway Alcatel small Media Gateway (7515)Alcatel Line Gateway (LGW), that access Alcatel S12 to NGN networkMatix 2000 (Modem Access Platform)Duties• Clients’ requirement analysis, system design, development• Implementation of common platform, including redundancy, TCP/IP, OS service• Review other developers’ design and code, provided feedback• Maintain on live product and fix bugsAchievementsI had good prestige because I provided timely support across all teams for troubleshooting, resolving issues. I dramatically improved system performance in System Control Model (SCM) by self-developed tool to find bottle-neck and optimization using proper data structure, system Context Attempt per Second increased from 120 (CPU usage 80%) to 220 (CPU 50%). I successfully porting Alcatel proprietary real-time operation system (RTOS) from single core to quad-core on BroadCOM 1480 (MIPS). I implemented many platform common libraries in system, including log utility, slab-pool based memory management, new timer management that support large scale, shaping library that used to shape packet and events.Development EnvironmentC/C++, GCC, GDB, Clearcase/Clearquest, VxWorks, MTEX, MIPS, embedded system