JULIAN CHAN YIU SAN — Shopify App Specialist | E-Commerce Developer

Expertise in Shopify (6.0 yr.), Shopify (6.0 yr.).

Last verified on October, 2025

Core Skills

FDD

6 yr.

LCDP

Shopify API

Liquibase

Node.js

Bio Summary

Software Engineer with 6+ years of experience specializing in Shopify App Development, proficient in Liquid, Node.js, React.js, and GraphQL. Achievements include developing a highly rated Shopify app and improving store performance metrics. Advanced education with a BSc in IT from CityU. Proven track record in theme customization, app release cycle optimization, and e-commerce optimization, leading to increased sales for clients. Expertise in RESTful APIs, Agile development, and cross-functional collaboration to drive e-commerce growth.

Technical Skills

Programming Languages	JavaScript
JavaScript Frameworks	Node.js
Wordpress Ecosystem	WooCommerce API
Databases & Management Systems / ORM	Liquibase
UI Frameworks, Libraries, and Browsers	HTML/CSS Preprocessors
Methodologies, Paradigms and Patterns	Agile, FDD
Deployment, CI/CD & Administration	CI/CD
Platforms	LCDP
Project Management & Administration	Project Management
SDK / API and Integrations	RESTful API, Shopify API, WooCommerce API
Other Technical Skills	Problem-solving, Teamwork

Work Experience

Shopify App & Theme Developer (Remote), Shopify App Development

Duration: 09/2021 - 08/2025

Summary:

Developed and released a Shopify app that achieved a 4
8★ merchant rating and strong user adoption

Responsibilities: Contributed to full lifecycle development from concept to deployment, built and customized Shopify themes, optimized themes for speed, SEO, and accessibility.

Technologies: Liquid, React, Node.js, HTML/CSS, JavaScript

Software Developer, Custom Shopify App Development

Duration: 02/2019 - 06/2021

Summary: Developed custom Shopify apps for SME clients, resulting in a 10% average increase in merchant sales.

Responsibilities: Developed and optimized Shopify apps, implemented Shopify Plus API integrations, collaborated with cross-functional teams, streamlined deployment processes and halved the app release cycle.

Technologies: Shopify Plus API, Shopify, Node.js

Shopify App Specialist, Nonprofit Shopify App Development

Duration: 2021-2023

Summary: Volunteered by developing custom Shopify apps for small nonprofit merchants, leading to a 20% increase in donations and sales.

Responsibilities: Developed and deployed custom Shopify apps for nonprofit merchants as a volunteer.

Technologies: Shopify App Development, Liquid, Node.js

Education

Bachelor of Science in Information Technology
City University of Hong Kong (CityU)
09/2014 - 06/2018

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