Chan Hoi Wing 陳海頴

90708787 cswing.chan@gmail.com

Technical Summary

A team player with 8-year experience on system analysis, design, and

development on real-t ime market data delivery systems with CMMI Level 5

Standard and Scrum development process. Recently move to a telecom

company to face a completely different domain and take the challenge to

develop VoIP and IM mobile client SDK and backend architecture. I am involving

in open source research, design the conference call backend architecture, and

implement using Java8, Akka, Guice, Mockito, Docker, MongoDB and Redis. I

am experienced in object-oriented software development with C++, Boost, Java,

JNI, Objective-C, also with script ing language like Lua and Python. Passionate

about building high quality software with agile software development practices.

Excellent problem solver, able to quickly grasp complex system, self-motivated,

able to make accurate est imat ion and meet deadlines, and exceptional

interpersonal skills.

Professional Experience

Maaii Limited

Staff Software Engineer 25 Apr 2016 – Presence

Project 1: Voice Engine Enhancement

Help on enhancing and troubleshooting on an exist ing cross

platform client VoIP engine run on iOS / Android.

Implement demo application to demonstrate the feature

Role: Developer

Environment: iOS, Android

Skills: C++, C++11, Objective-C, Java, JNI, SIP

Project 2: Conference Call

Research and develop on top of an open source conferencing

server – Jitsi.

Analysis the product requirement

Design the backend architecture of conference call feature

Implement the feature on top of the exist ing backend servers with a

mixture of XMPP and SIP protocol

Role: Developer

Environment: Linux (CentOS, Debian)

Skills: Java8, Akka, Guice, Mockito, Docker, XMPP, SIP, Lua

Thomson Reuters

Contract Software Engineer 6 Mar 2008 – 5 Mar 2010

Contract Senior Software Engineer 6 Mar 2010 – 5 Mar 2012

Contract System Analyst 6 Mar 2012 – 15 Apr 2016

Project 1: DPS 2008 - 2010

An exist ing local-pop site market data / news data real-t ime delivery

system in IDN network.

Enhance features in the message path of receiving data by

subscribing a mult icast address using UDP and making request to

upstream system using TCP for data recovery

Object-oriented design, implement and test ing with CMMI Level 5

standard.

Role: Developer, Tester

Environment: Windows Server 2003

Skills: Visual C++ 2005, VSS, Visio, Wireshark

Project 2: Gateways 2010 - 2011

A complete new system for convert ing market data from IDN to

Elektron or vice versa.

Develop with a team of 15 members.

Own modules of watchlist synchronizat ion, manageability, and

output to Elektron network.

Requirement analysis, object-oriented design, implement and

test ing with CMMI Level 5 standard.

Help on software configurat ion management, software building and

packaging.

Role: Developer, Tester, SCM

Environment: Windows Server 2008

Skills: Visual C++ 2008, batch script, VSS, Visio, InstallShield, Wireshark,

Colasoft

Project 3: NPS-S 2011 - 2013

A news delivery system for collect ing news feeds from internal and

3rd party.

Enhance features in receiving news feed using TCP, news

processing, output to IDN network using UDP, remote partner news

database synchronizat ion using UDP.

Project plan on resource, scheduling, task priorit ization

Provide L3 support and troubleshooting of production issues and QA

team.

Requirement analysis, object-oriented design, implement and

test ing with CMMI Level 5 standard.

Help on software configurat ion management, software building and

packaging.

Role: Developer, Tester, SCM, Support

Environment: Windows Server 2008

Skills: Visual C++ 2008, batch script, VSS, Visio, InstallShield, Wireshark

Project 4: SMF 2013 - 2014

Server Management Foundation (SMF) framework provides

functionalit ies of stats collect ing / report ing, process / parameter

monitoring, logs collect ing / report ing, alert ing etc.

Enhance logs report ing, stats report ing and alert ing to an open

source framework using Elast ic Search, Logstash, Sensu and NxLog.

Implement a Java client library to call the exist ing C++ library using

JNI

Requirement analysis, object -oriented design, implement and

test ing with CMMI Level 5 standard.

Provide L3 support and troubleshooting of production issues and

application teams.

Performance test ing on Windows with PerfMon and Linux by writ ing

shell script to capture performance data.

Role: Developer, Tester, Support

Environment: Windows Server 2008, Red Hat Linux 6

Skills: Visual C++ 2010, batch script, Java, JNI, Elast ic Search, Logstash, Sensu,

NxLog, Netbeans, gcc, gdb, shell script, Git , Visio, Wireshark

Project 5: Gateways with UDM (Unified Data Model) 2014 - 2015

A project to convert ing illogical FIDs to logical unified FIDs by

configurable market rules from BA.

Own the module of market rules function tokens

Refractor the code to use boost::variant and static_visitor for FID

data; to process different numeric FID data types, i.e. int, uint and

real, with a single “Numeric” data structure which ensure the

arithmetic calculat ion will have up to 14 decimal places precision

for most of the cases.

Performance tuning for the UDM processing based on profiling result ,

significantly improve the throughput by replacing the original

std::stack data structure with a tree structure to skip the unnecessary

rule processing and avoid memory copy of push / pop by reference

object.

Implement t imezone offset calculat ion with daylight saving using

ICU library

Requirement analysis, object -oriented design, implement and

test ing with Scrum process (Agile).

Role: Developer

Environment: Windows Server 2012

Skills: Visual C++ 2010 with C++11, Boost, ICU, batch script, Git , XWiki, Lucid

Chart , VTune

Project 6: Collect ion Head-End (Linux based) 2015 - 2016

Develop a Shanghai Foreign Exchange feed, CFETS, on top of an

unstable Linux based Core framework with a squad team of 5

members.

Communicate with PM, BA, Content and QA team for scope of

requirements, scheduling, availability of test line for actual Exchange

data and the test st rategy etc.

Design the input line module to receive CFETS data using the given

Java client API with TCP and pass the CFETS data to C++ for

processing via JNI.

Design and implement a configurable pattern match engine to

parse the CFETS data to an internal generic message protocol in

Elektron.

Help identifying and solving issues of running mult iple venues in

single box

Implement the market rules defined by BA and value-added FIDs in

another system.

Project planning on resource, scheduling, and task priorit izat ion

Help on Core task which splits venue development team owned

metadata from the architect team owned label files into metadata

file.

Help on designing and implementing the general venue stats show

on Console.

Requirement analysis, object -oriented design, implement and

test ing with Scrum process (Agile).

Role: Developer, Tester, Project Coordinator

Environment: Red Hat Linux 6

Skills: gcc with C++11, Boost, Java, JNI, gdb, shell script, Python, Git , cmake,

XWiki, Lucid Chart

Additional Role: Software Quality Assurance

Responsibility:

Audit software compliance with the process guideline defined by

Software Engineering Process Group

Identify project risks in SDLC

Report project quality metrics

Help other project teams to remove process obstacles

Analysis the major project issues like major out -phrase faults or

unsatisfied quality metrics score

Unisys

Programmer 16 Jul 2007 – 5 Mar 2008

Project: ADSR

A Java based internal equity t rading system of Sun Hung Kei

Securit ies

Part icipate in three modules of a securit ies t rading system:

Settlement, Accounting and Static Data

Acquire and analyze requirements from accounting staff and BA

Design for developing the system

Role: Developer

Environment: Windows Server 2003

Tools: UML

Education

2003 – 2007 BSc (Hons) in Computer Science

City University of Hong Kong

Upper 2nd Class

Honours