Jian-Hua H.


574 dollar

My experience

Self-EmployedMay 2019 - Present


PopUp Tech, Inc.July 2017 - April 2019

*Built a Property Management System with Golang, GraphQL, and React Apollo; reduced the initial loading time by 50% by optimizing React lifecycle and DB query with Data Loader.

*Established a support system for PMS. . Created infrastructure for customer success to manage the workflow without developers involved

*Built a data migration tool to transfer data set between different environment; reduced the developers switch environment time in local from 5 mins to 10 seconds.

*Implemented Scrum process within the development team; facilitated the requirement analysis and prioritization process with product manager and designer.

*Migrate backend server from ExpressJS to Gin; achieved zero downtime during the migration process.

Logic Solutions, Inc.March 2014 - February 2017

*Led a development team in a Laravel based Human Resource platform; designed the API interfaces and database architecture using both MySQL and AWS RDS.

*Enhanced a large scale CRM system for gyms; migrated the whole database from Mindbody service and created the scheduled shell scripts which induced 0 downtimes.

*Managed AWS platform with EC2, RDS resources integration and introduced CI process with Jenkins; automated deployment process and reduced the deploy time by 40%

*Created internal Docker containers for a development environment; reduced the on-boarding time for newly joined developers from a week to 1 day.

Security Operation Center - Coast Guard AdministrationApril 2013 - February 2014

Integrated Kaspersky service with JSP web interface; improved the information management
security for non-developers.

Initiated security screening process with Arcsight; prevented confidential information leakage

My stack

SQL, Shell Scripting, REST, Requirements Analysis, React.js, React, PHP 7, MySQL, MongoDB, Laravel, jQuery, Jenkins, JavaScript, GraphQL, Golang, Go, Git, Express.js, ECMAScript 6, Docker, Data Migration, CSS, Composer, API, AngularJS, Amazon Web Services (AWS)