Kevin's Projects

The Chronicle of Kevin

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Employment

Senior Backend Developer (Scala) @ ... Nov 2020 – Present

Senior Software Engineer (Scala) @ Expedia Group (Homeaway / Vrbo) Dec 2019 – Nov 2020

Worked on four streaming applications for affiliate (with Cats Effect, Akka, Kafka and http4s).
Mentored Scala and functional programming in the Sydney team
Personal opensource projects on GitHub (effectie and logger-f) are chosen to be used in the apps in production.

Software Engineer (Scala) @ British Telecom (BT) Jul 2016 – Sep 2019

Working on data enrichment project and small ML project using Spark with BigData tech stack (Kafka, HDFS, HBase, Elasticsearch, Flume, etc.).
Built Spark and Yarn log collector tool using Scala
Built test result and test case mapping tool using Scala l Developed SBT plugins for CI
Maintaining BigData web app UI using Elm
Built Kibana plugin to help data analysts

Consultant (Scala Developer) @ Simp|e Machines Apr 2016 – Jul 2016

CMS Development
DevOps

Scala Developer @ Fairfax Dec 2014 – Mar 2016

Development of media web application and framework using Scala and Akka Framework
Writing test and documents for Scala application
Writing Akka Persistence Plugin for Redis
CI & CD: Automatic build and deployment to AWS

Software Engineer @ Pocketbook Jan 2014 – Nov 2014

Development of Java web application and web API
Refactoring and optimizing the existing code.
Improving performance and code quality using Lambda expressions and Stream API in Java 8
Development of iOS and Android Apps
Setting up Development Environment (including migration from SVN to Git)

Software Developer (Contractor) @ Red Unicorn Solutions Oct 2013 – Nov 2013

Development of Java web API platform and web applications:

Using Spring MVC, Hibernate, Morphia, MS SQL server, MongoDB, Ajax, etc.

Java Architect / Software Engineer @ Agin3 (Casual) Oct 2013 – Present Java Architect / Software Engineer @ Agin3 Sep 2010 – Oct 2013

Developing the server-side Java web application.
Developing commonly used reusable Java libraries and frameworks.
Setting up software development environment including IDE, SCM, DB and Issue Tracking System and so on.
Administrating servers

Java Architect / Software Engineer @ Elixirian Feb 2010 – Oct 2013

Developing the server-side Java web application.
Developing commonly used reusable Java libraries and frameworks.
Setting up software development environment including IDE, SCM, DB and Issue Tracking System and so on.
Administrating servers

Java Web Application Developer @ UTS (Faculty of Engineering and IT) Mar 2007 – Oct 2009

Developing the server-side Java web application for the TeCTra, Team Contribution Tracking System, used by the students and teachers at UTS and other universities to aid in peer assessment in group work.

Tutor @ UTS (Faculty of Engineering and IT)

Java EE application development Aug 2009 – Nov 2012
Java web services development Mar 2010 – Nov 2012
General knowledge of Ajax for the Interface Design Subject May 2008 / May 2009
Software development (also lectured on Continuous Integration) Aug 2008 – Nov 2009

Education

University of Technology, Sydney (UTS)

Bachelor of Science in Information Technology 2006 – 2007

Focus:
- Software Design
- Web Application and Web Service Development
Achievement:
- Distinction (82) Average
- Insearch Prize -
  to the most outstanding international student graduating in the Bachelor of Science in Information Technology.
- Insearch Prize for General Proficiency in the Faculty of Information Technology -
  to the graduating student who did both Diploma of IT at UTS:Insearch and Bachelor of Science in IT at UTS has gained the highest weighted average mark of such students over all subjects studied.

UTS: Insearch

Diploma of Information Technology (Fast-Track) 2005

Focus:
- Object-Oriented Programming and Design
- Developing Information Systems
- Developing Web Applications
Achievement:
- High Distinction (85) Average
- Merit Certificates in the 1st, 2nd and 3rd (final) semesters. -
  to the students the semester average of which is 80 or higher
- The UTS Faculty of Information Technology Prize for General Proficiency in the Diploma of Information Technology -
  to the best graduating student in the Diploma of IT

IT Skills

1. Programming Languages:

Scala, Java, Haskell, Kotlin, XML, XHTML, HTML, DHTML, JavaScript (jQuery), CoffeeScript, PHP, C#, Swift, SQL, C, C++, UML, Visual Basic 6, VBScript

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2. Software Development:

Scala
- Scala
- Cats
- Cats Effect
- Hedgehog (Property-based Testing)
- Circe
- Argonaut
- Doobie
- ~~Play Framework 2 (Old Play 2 and 2.4 Supporting DI)~~ - No longer use
- ~~Akka~~ - No longer use
- ~~Slick (3.x: New Reactive Slick)~~ - No longer use
- ~~Spray~~ - No longer use
Web / Web Application Servers:
- Apache Web Server
- Nginx
- HAProxy (Load Balancer)
- Apache Tomcat Server
- JBoss Application Server
- Apache Geronimo Server
- Oracle WebLogic Server
Java & Java EE (No longer use)
- Java 8: Functional Style Programming with Lambda Expressions, Method References, Default Methods and Stream API
- Spring Framework
- JavaBeans
- Servlet
- JSP
- JSTL
- JNDI
- LDAP
- EJB (2 & 3)
- RMI
Java Persistence:
- JDBC
- JPA (1.0 & 2.0)
- Hibernate
- QueryDSL
- Morphia
Web Service:
- Axis
- XFire
- Apache CXF
XML:
- JAXP
- JAXB
- XStream
JSON:
- JSON Statham
- org.json
Unit Testing:
- JUnit with
Aspect-Oriented Programming
- AspectJ
Logging:
Other Libraries & Frameworks:
- Bytecode Manipulation Library: ASM
- Libraries from Apache.org (e.g. commons-fileupload, commons-lang, etc.)
- Google Guava
- JFreeChart
- JavaMail
- Other libraries I have developed:
  - JSON Statham (Java / JSON Mapper)
  - KommonLee
  - Web Method
Database and Data Analysis:
- PostgreSQL
- MySQL
- Oracle Database
- MongoDB
- Redis
- Logstash
- ElasticSearch
- Kibana (Soon)
Build tool
Other Web Development Skills
- Ajax (with jQuery)
- Node.js
- Socket.io
- PHP

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3. Software for Software Development:

Development Platform:

IntelliJ IDEA (and Android Studio)
Eclipse JEE with
- Spring IDE
- Maven Integration: m2e
- Git Support: eGit
- Subversion Support: Subversive / Subclipse
- AspectJ Development Tools (AJDT)
- Task Oriented Programming Tool: Mylyn
- Code Coverage Tool: EclEmma
- Code Analyser: Jdepend
- FindBugs
- Bytecode Outline plugin for Eclipse
- Resource Bundle Editor
- UML Tools: eUML2 / Omondo
- Aptana Web Development Tools
- Profiling Tool: Test & Performance Tools Platform (TPTP)
Xcode

Other IDEs & Editors:

Issue Tracking System (and Agile Tools):

GitHub Issue Tracking
GitLab Issue Tracking
Trac
Jira
Pivotal Tracker
Trello

Continuous Integration Tool:

Project Management & Build Automation:

Revision Control

Git (with GitHub / GitLab / Gitolite)
Subversion

Server:

Nginx with Tomcat
Apache Tomcat Server (with Spring Framework, Hibernate and QueryDSL)
JBoss Application Server
Apache Geronimo Server
Oracle WebLogic Server

UML Tools:

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4. Other Software:

Libre Office (Open Office)
MS Office
GIMP
Adobe Photo Shop

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5. Operating System:

OS X
Linux (prefer Ubuntu)
- I also have Linux server administration skills
  (shell scripts, web/application server management, Ansible, etc.)
Unix
MS Windows

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About Kevin

My name is Kevin Lee. I am a coder living in Sydney Australia, and currently I'm most interested in Scala and Functional Programming.

More about me:

Blog
GitHub