Handika Harianto Ew Jong.

Software Engineer

Building software to solve real-world problems.

01. About

I bridge the gap between complex backend architectures and intuitive user interfaces. With experience spanning open-source development, freelance enterprise projects, and full-stack automation, I specialize in building responsive, data-driven web applications.

02. Experience

Jun. 2026 — Present

Software Engineer · One Community Global

  • Worked on the open-source Highest Good Network application using React, Express.js, Node.js & MongoDB.
  • Developed a job application analytics feature to compare completion times and volume of applications per role.
  • React
  • TypeScript
  • Express.js
  • Node.js
  • MongoDB
  • Redux

Mar. 2022 - May 2023

Freelance Web Developer · Self-Employed

  • Delivered high-performing, responsive websites for Malaysian enterprise clients using Next.js and Gatsby.
  • Designed user-centered Figma prototypes based on client requirements.
  • Improved website content with copywriters, ensuring 100% alignment between visual design and messaging.
  • Next.js
  • Gatsby
  • Figma

Aug. 2022 – Nov. 2022

Full Stack Developer Intern · Tinkerve LLP

  • Developed a chatbot-based automation system for Malaysian businesses in retail, e-commerce, manufacturing, etc. using React/TypeScript, Express.js, Node.js, MongoDB, Redux, and Sass.
  • Implemented a multi-channel feature, allowing users to seamlessly integrate chatbots across both WhatsApp and Telegram, designing REST API for tenant platforms, and building functional React components from Figma.
  • Implemented a Glide Data Grid to handle large-scale data, including lazy loading, context menu, search, etc.
  • React
  • TypeScript
  • Express.js
  • Node.js
  • MongoDB
  • Redux
  • Sass

03. Projects

01

Cordia

A web-based classroom availability finder for Concordia students.

02

Foodly

A web-based food donation system to facilitate food donation tracking and management.

03

URL Shortener

A full stack web application to truncate long URLs.

04. Capabilities

Programming Languages

TypeScript / JavaScript
Advanced
Java
Intermediate
HTML
Advanced
CSS / Sass
Advanced

Frameworks & Libraries

React / Next.js / Gatsby
Advanced
Tailwind CSS
Advanced
Redux
Advanced
Spring Boot
Intermediate
Express.js / Node.js
Advanced

Tools & Software

Claude Code
Intermediate
Git / GitHub
Advanced
Docker
Intermediate
Figma
Intermediate
shadcn/ui
Intermediate
Socket.IO
Intermediate
Cron Job
Intermediate

Databases

MongoDB
Advanced
PostgreSQL / MySQL
Intermediate
Firebase / Supabase
Intermediate

Cloud Platforms

AWS
Intermediate