Software engineer focused on building reliable, maintainable full-stack web applications.

I prioritize system design, explicit tradeoffs, and shipping software that holds up under real usage.

• Full-stack web applications
• Clean architecture and maintainable codebases
• Practical UI over visual theatrics
• Performance, correctness, and long-term reliability

Frontend
React, Next.js, TypeScript

Backend
Node.js, Express, Laravel

Databases
PostgreSQL, MySQL, MongoDB

Infrastructure & Tooling
Docker, Nginx, Vercel, Git, Linux, Postman

Additional Experience
Flutter, Firebase, AWS (core services & deployment)

A fully offline-first web music player designed to work without ads, accounts, or network dependency.

Why this exists I wanted a YouTube-like listening experience without ads, tracking, or forced connectivity. This project explores how far modern web APIs can go for offline media consumption.

Architecture & Decisions

• IndexedDB for local audio storage
• Service Workers for offline reliability
• Client-side playlist and queue management
• No backend by design

Engineering Challenges

• Large file handling in-browser
• Performance with growing local libraries
• Playback state persistence across reloads

Tech: React, TypeScript, Web Audio API, IndexedDB
Repo: https://github.com/Ipangbbd/Offline-Music-Player-Ali

Accountability-focused system designed to reduce internal fraud in shift-based operations.

Problem In many small and mid-sized businesses, shift logs are manually adjusted, weakly audited, or retroactively edited—creating opportunities for cash leakage and responsibility evasion.

System Intent SBACS enforces explicit accountability by making shift state changes traceable, constrained, and reviewable.

Architecture

• Frontend: React (Native CSS)
• Backend: Node.js, Express
• Database: PostgreSQL

Design Decisions

• Explicit shift state transitions to prevent silent edits
• Role-based access separation (operator vs supervisor)
• Audit-oriented data modeling over convenience
• Server-side validation for all critical state changes

Tradeoffs

• Monolithic backend to keep authority centralized
• No real-time updates to avoid unnecessary complexity

Tech: React, Node.js, Express, PostgreSQL
Repo: CURRENTLY NOT AVAILABLE FOR PUBLIC

Offline-first mobile app for personal budgeting and expense tracking.

Design Choices

• Local SQLite storage for reliability
• Minimal state management

Limitations

• No cloud sync
• Single-device usage

Tech: Flutter, SQLite
Repo: https://github.com/Ipangbbd/Flutter-Finance-Manager

GitHub: https://github.com/ipangbbd
LinkedIn: https://linkedin.com/in/muhammad-ali-irfansyah