Cong is currently unavailable

Cong Liu

Verified Expert in Engineering

Software Developer

Toronto, ON, Canada

Toptal member since November 10, 2014

Expertise

Java AWS Spring SQL MySQL Hibernate Linux Kubernetes Amazon API Amazon S3 GitHub Golang FPGA MacOS Android

Bio

Cong is a fast learner and enthusiast for new technologies. He is passionate about building high-performance data structures, algorithms, and systems. He also has solid experience with object-oriented design and web service construction. He enjoys working in a team environment and is always willing to learn new skills.

Portfolio

iWesllite Automation, Inc.

Python, Java

Breadcrumb Technology (via Toptal)

Android

University of Alberta

FPGA, MATLAB, Java

Experience

Java - 6 years
Spring - 5 years
SQL - 5 years
MySQL - 5 years
Apache Tomcat - 5 years
Hibernate - 5 years
Kubernetes - 3 years
Amazon DynamoDB - 2 years

Preferred Environment

IntelliJ IDEA, Linux, MacOS

The most amazing...

...thing I've developed is an augmented reality algorithm that can display virtual objects in a phone camera view like real images.

Work Experience

Software Developer

2015 - 2016

iWesllite Automation, Inc.

Developed web services for an oil well remote control system.

Technologies: Python, Java

Android Developer

2014 - 2015

Breadcrumb Technology (via Toptal)

Developed an Android app for livestock track and trace.

Technologies: Android

Research Assistant

2012 - 2014

University of Alberta

Proposed several approximate arithmetic designs and performed image processing using Java and Matlab. Achieved equivalent quality to conventional designs but with power savings of 80%.

Technologies: FPGA, MATLAB, Java

Android Developer

2010 - 2012

Tsinghua Future Communication Program

Designed augmented reality algorithms for an Android app.
Won second place globally in the 2011 Ericsson Application Award.

Technologies: Android

Experience

Butterfly Hunter

An Android augmented reality game. This game displays virtual butterflies and allows users to "catch" them. Users can walk towards butterflies and catch them only once they are close enough.

Task-queue-retry

This project implements a simple task queuing, persistence and retrying framework backed by RabbitMQ and Spring-retry framework. The example is shown by a Spring MVC web service.