Independent Contractor2019 - PRESENTListia Inc.
Technologies: Ruby on Rails, Ethereum
- Solved web application issues and blockchain-related problems.
Lead Developer2015 - 2019Listia Inc.
- Migrated Rails from 3 to 4, and using Rails 5 for new projects.
- Maintained and wrote Ethereum Smart Contracts using Solidity.
- Maintained and evolved an Ethereum blockchain processor framework built with CTO.
- Managed a team of 4, being a bridge that communicates between US and TW team, pass down project specs and make critical technical decisions with CTO.
Web Developer2013 - 2015Listia Inc.
- Built API back-end for Listia mobile clients.
- Built delayed job framework that combines SQL and NoSQL job serialization/deserialization, enqueue, and error handling.
- Built a cron job framework with CLI that can securely run jobs with monitoring and reporting tools.
Web Developer2012 - 2013Code Green IT
Technologies: Ruby on Rails
- Worked on a golf handicap registration system using Rails 3.
IT Manager2011 - 2012Winjet Co
Technologies: Symfony PHP, .NET C#
- Maintained and built a B2C EC platform combining front store and ERP management.