I am a services engineer at Digital Reasoning (DR). DR delivers trusted cognitive computing for a better world. Our machine learning-based analytics platform, Synthesys, understands how humans communicate by analyzing the context, content and relationships within Big Data while semantically revealing what’s most critical to our clients. I have various experience in the followings: * Big Data Platforms: Spark (Core, Streaming, and SQL) & Hadoop (HDFS and MapReduce) * Programming Languages: Scala, F#, Java, Python, C#, C++, Haskell and JavaScript * SQL (Vertica, Redshift, PostgreSQL and SQL Server) and NoSQL (Aerospike, Cassandra, HBase, MongoDB and Neo4j) * Streaming: Kafka and Storm * Cloud Computing: AWS, OpenStack and Azure * System Admin: Git, Bash, Vagrant, Scripting Linux, and Windows Power Shell * Continuous Integration & Deployment: TeamCity, Docker, Puppet and TFS * Testing: TDD * Interested in Machine Learning * Experience on MVC and RESTful API Human languages: fluent in English, Mandarin & Cantonese

Services Engineer/Consultant @ From July 2015 to Present (6 months) London, United KingdomSenior Big Data Engineer @ I've been working on the following projects: * Real-time data pipeline * RTB pricing API * Real-time engager feature simulation * Docker image deployment From November 2014 to June 2015 (8 months) London, United KingdomBig Data Developer @ I was a big data developer at Adbrain Ltd. My main responsibilities included: * Implementing Data Management Platform (DMP) * Designing scalable data pipelines * 1st/3rd party data integration * Code tuning and performance optimisation * Test Driven Development * Research on new technologies From December 2013 to November 2014 (1 year) London, United KingdomSoftware Developer @ Developing tools and libraries for Synthesys family products using C#/C++/SQL. Completed projects: Asterisk Interface API, QSIG Dialler library and Synthesys Configuration Tooling application. From May 2013 to November 2013 (7 months) London, United KingdomF# Developer (Contract) @ * Developed JQueryUI/Tools and libraries for WebSharper in F#; * Built and tested Web applications/services with WebSharper. From January 2010 to April 2010 (4 months) HungaryLab Technician (Contract) @ From October 2007 to May 2008 (8 months) Software Engineer @ From 2004 to 2006 (2 years)

PhD, Computer Science @ De Montfort University From 2006 to 2013 BEng, Software Engineering @ Jilin University From 2000 to 2004 Joel (Ph.D.) is skilled in: Hadoop, Big Data, Software Engineering, Java, Machine Learning, Scala, F#, Haskell, Functional Programming, SQL, MongoDB, .NET, C#, jQuery, JavaScript