Application Developer | Backend-Focused Full-Stack Developer

HTOO AUNG LYNN

I design backend-first products that stay calm under real traffic and growth. My work spans clean API boundaries, secure authentication and authorization, CI/CD automation, and cloud-ready deployments that teams can trust in production. I focus on software that is reliable, maintainable, and still enjoyable to use for both developers and end users.

πŸ“ Myanmar
βš™οΈ Backend-centric builder
πŸ” JWT, RBAC, refresh tokens
πŸš€ Docker + CI/CD

Technical Skills

Backend depth + full-stack delivery

Hover over any skill card and the smile widget reacts. The stack below mirrors your resume categories.

Programming Languages

  • JavaScript (ES6+)
  • TypeScript
  • PHP
  • C# (basics)
  • Python (basics)
  • C++ (basics)

Backend Development

  • Node.js
  • NestJS
  • Express
  • Laravel
  • REST API Development
  • API Design
  • MVC
  • JWT & Refresh Tokens
  • Role-Based Access Control (RBAC)
  • Clean Architecture
  • Dependency Injection
  • Service Layer
  • Repository Pattern

Frontend Development

  • React
  • Next.js (SSR, CSR, SEO)
  • Vue.js
  • Angular
  • HTML5
  • CSS3

Databases & Data Management

  • PostgreSQL
  • MySQL
  • MSSQL
  • Prisma
  • TypeORM
  • Eloquent ORM
  • Database Design
  • Indexing
  • Query Optimization
  • Transactions

DevOps & Cloud

  • CI/CD (GitHub Actions, GitLab CI)
  • Linux
  • DigitalOcean
  • Environment Configuration

Performance & Scalability

  • Background Jobs
  • Queues
  • API Performance Optimization

Projects

What I built recently

Project 01

Full-Stack SaaS Platform (Capstone Project)

Tech: NestJS, Next.js, TypeScript, PostgreSQL, Redis, Docker, CI/CD, Cloud

  • Designed clean architecture with modular backend boundaries.
  • Built JWT auth, refresh token flows, and role-based authorization.
  • Shipped SSR public pages and secure client dashboards.
  • Added Redis caching and async jobs for better runtime performance.

Project 02

Gym Management System

Tech: NestJS, Prisma, Next.js, Docker

  • Implemented role-specific flows for admin, trainer, and member.
  • Designed permission-based access control and auth middleware.
  • Separated domain logic from infrastructure for maintainability.
  • Containerized environments for consistent local and production behavior.

Project 03

User Management API

Tech: Node.js, Express/Fastify, TypeScript

  • Built REST APIs from scratch to understand Node.js internals deeply.
  • Implemented CRUD, validation, auth, and centralized error handling.
  • Applied controller-service-repository architecture for testability.

Project 04

Admin Dashboard

Tech: Vanilla JavaScript, Vite

  • Created a lightweight dashboard optimized for browser rendering performance.
  • Integrated REST APIs and implemented robust authentication flows.
  • Improved client-side performance and state management patterns.

Project 05

CLI Tool & API

Tech: Node.js, TypeScript

  • Built CLI workflows that communicate with backend APIs.
  • Implemented async flows with Promises and async/await.
  • Shared TypeScript types between CLI and API for stronger consistency.

Experience

Professional Experience

Professional Experience

Application Developer

BIM Group of Companies | 2023 - Present

  • Developed and maintained full-stack web applications using Laravel.
  • Designed and implemented RESTful APIs with authentication and authorization.
  • Optimized MySQL and MSSQL queries and schema decisions for performance.
  • Collaborated with frontend engineers and product managers across delivery cycles.
  • Refactored legacy codebases to improve maintainability, scalability, and reliability.

Education

Education Timeline

Windows App with C#

YCI

2021

Certification

Computer Science Bootcamp Level 3 and 4

Myanmar IT Consulting

2022

Certification

Diploma in Web Development

Y-Max University

2023

Diploma

CS50x: Introduction to Computer Science

edX

2025

Certification

Git and GitHub Essentials

edX

2026

Certification

Web Development with HTML5, CSS3, and JavaScript

edX

2026

Certification

Contact

Let’s build something production-ready

Collaboration Brief

What to send me

Project Details

  • Product goal and your target users.
  • Current stack and technical constraints.
  • Required features, timeline, and priorities.
  • Deployment environment and scale expectations.

Availability

πŸ“ Based in Myanmar

🌏 Remote collaboration

⏱ Typical reply: 24 hours

βš™οΈ Backend-first projects