Available for freelance and full-time roles

Hi, I'm Mark Leouie

Full-Stack Software Engineer building production web applications with modern engineering and AI-assisted development workflows.

TypeScriptNext.jsNode.jsAWS
Mark Leouie

About

Full-stack software engineer with professional experience building and maintaining web applications using modern frontend, backend, and cloud technologies. Strong foundation in software development fundamentals, with hands-on experience developing applications before the widespread adoption of AI-assisted coding. I now use AI tools to accelerate delivery while maintaining ownership of architecture, debugging, testing, security, and code quality.

Timeline

Digital Transformation
Digital Transformation
Full Stack Developer
November 2023 - September 2026
Qonvex Technology
Qonvex Technology
Back End Developer
May 2022 - November 2023
Graduated College
Graduated College
Information Technology
2022

Skills

Languages

JavaScript
TypeScript
PHP
SQL

Frontend

React
Next.js
Vue
Nuxt
Tailwind CSS
Html

Backend

Node.js
Express
tRPC
Laravel
Prisma

Data

PostgreSQL
MySQL
Redis

Cloud / Infrastructure

AWS
EC2
Nginx
PM2
Docker
Linux

Engineering

Authentication
API Design
Database Design
Security
Testing
Payment Integration

AI Development

Claude Code
GitHub Copilot
Codex
Gemini CLI

Projects

Selected works that showcase my skills, creativity, and experience.

Asialink Document Management System

Asialink Document Management System

Full Stack Developer | Lead Developer

A document management system for Asialink, streamlining the organization and retrieval of borrower documents, enhancing efficiency and accessibility.

ReactNodejsExpressjsTypescriptRadixUITailwindPostgresPrisma

Key Responsibilities

  • Implemented Multi-Factor Authentication (MFA) for enhanced security
  • Integrate Cloudflare turnstile for secure access to internal applications
  • Identified and resolved critical bugs in the system, improving overall stability and performance
  • Maintained and enhanced the frontend and backend architecture
  • Implemented new features and optimized existing functionalities
  • Managed deployment and production infrastructure
DX - Timetracker

DX - Timetracker

Full Stack Developer | Lead Developer

A time tracking application for DX, helping teams efficiently log and manage their work hours.

ReactNext.jsTypescriptClerkTailwindtRPCPostgresPrisma

Key Responsibilities

  • Migrated and integrated nextauth for authentication from Clerk
  • Resolve more than 20 merge request conflicts
  • Integrate Xendit payment gateway on staging environment
  • Maintained and enhanced the frontend and backend architecture
  • Implemented pagination and filtering for efficient data retrieval
  • Implemented new features and optimized existing functionalities
  • Managed deployment and production infrastructure
Care Companion Queensland

Care Companion Queensland

Full Stack Developer | Cyber Security

Visit

A nurse-led disability and aged care support service committed to setting the highest standard in care.

ReactNext.jsTypescriptNextauthTailwindDaisyUIPostgresPrisma

Key Responsibilities

  • Designed and developed the frontend and backend architecture
  • Designed PostgreSQL database schema and API structure
  • Implemented event participant registration form
  • Managed deployment and production infrastructure