🏆 INDES 2025 — Silver (HalalMate), Bronze (Goqu)

Hello, I'm Daffa Raihan

Full Stack Developer specializing in building scalable, AI-powered systems with clean architecture and modern tech stacks.

About Me

Full Stack Developer berfokus pada arsitektur yang bersih, API yang andal, dan integrasi AI untuk solusi end-to-end yang scalable.

Who I Am

Backend Developer dengan 3+ tahun pengalaman membangun aplikasi web yang robust dan scalable. Ahli di Go (Golang) + Gin, dan Node.js (Express.js, NestJS) dengan fokus pada performa, security, dan clean code.

Juga mengembangkan mobile app dengan Flutter dan integrasi backend modern. Terbiasa merancang arsitektur server-side, RESTful API, serta database yang efisien.

Aktif mengeksplor AI (OpenAI/OCR), caching (Redis), serta CI/CD & containerization untuk meningkatkan reliability dan developer velocity.

Name: Muhammad Daffa Raihan
Email: daffaraihan2004.work@gmail.com
Location: Yogyakarta, Indonesia
Availability: Available for freelance

INDES 2025 (UiTM Perak) — Silver Medal

HalalMate — Flutter + AI + OCR

INDES 2025 (UiTM Perak) — Bronze Medal

Goqu — Donation management system

My Skills

Backend

Node.js
Node.js
Express
Express
NestJS
NestJS
Golang
Golang
Gin
Gin
Python
Python

Frontend

Flutter
Flutter
Astro
Astro
React
React
Next.js
Next.js
Tailwind
Tailwind
TypeScript
TypeScript

Database

MongoDB
MongoDB
Firebase
Firebase
PostgreSQL
PostgreSQL
MySQL
MySQL
Redis
Redis

Core Competencies

Areas where I excel and bring the most value to projects

⚙️

Backend Development

Scalable server architecture & microservices

90%
📱

Mobile Development

Cross-platform Flutter applications

80%
🟢

Node.js

High-performance JavaScript runtime

85%
🗄️

Database Design

Optimized data modeling & query performance

80%
🔌

API Development

RESTful & GraphQL API design

95%
🧩

Problem Solving

Complex algorithmic thinking

90%

Professional Journey

Jun 2025 - Present Current

Full Stack Web Developer

Emica

Building database SQL & NoSQL systems, developing RESTful APIs and server-side logic using Node.js. Integrating third-party APIs to Android applications and creating frontend solutions with React + Vite.

Node.js React Vite SQL/NoSQL REST API
Aug 2024 - Jun 2025 10 months

Backend Developer

KeepUp

Developed REST API for mental health screening (Anxiety, Depression, Stress). Built admin APIs, quiz systems, and PDF + Excel report generation. Integrated OpenAI for automatic report generation using NestJS, PostgreSQL, Redis, and deployed on Railway.

NestJS PostgreSQL Redis OpenAI Railway PDF/Excel
Aug 2024 - Jan 2025 5 months

Full Stack Mobile Developer

SaveBite

Developed backend using Node.js + Express and designed database architecture. Created Android application using Jetpack Compose for modern UI/UX implementation.

Node.js Express Jetpack Compose Android Database Design
Aug 2024 - Oct 2024 2 months

Backend Developer

Nasho

Developed REST API for Arabic language learning application. Implemented "lock material" system and progress tracking functionality using Express.js + PostgreSQL.

Express.js PostgreSQL REST API Progress Tracking
May 2024 - Jun 2024 1 month

Backend Developer

TEDXUII

Developed REST API for web-based ticketing system. Created APIs for products, orders, and admin management using Express.js, PostgreSQL, Redis, and deployed on VPS.

Express.js PostgreSQL Redis VPS Ticketing System
Sep 2024 - Nov 2024 2 months

Backend Developer

TikaTiko

Developed attendance tracking system for informatics lab assistants. Created Telegram bot UI with automated weekly reporting functionality.

Telegram Bot Automation Reporting Attendance System
Sep 2023 - Present Ongoing

Lab Assistant & Mentor

FTI UII - Informatics Lab

Assisting students in courses: Algorithms, Programming Logic, Web-Based Applications, and ADF. Providing mentorship and technical guidance to fellow students.

Mentoring Algorithms Programming Logic Web Development Teaching
2022 - 2026

Bachelor of Computer Science

Universitas Islam Indonesia

Currently pursuing Bachelor's degree in Informatics with GPA 3.96. Active member of Programming Study Club & Google Developer Student Club (GDSC).

GPA 3.96 Programming Study Club GDSC Software Engineering Database Systems

Projects

Check out some of my works

Ready to Work Together?

I'm currently available for new opportunities where I can contribute my development skills.

Get In Touch

Have a project in mind or want to discuss opportunities? I'd love to hear from you.

Contact Information

Phone

+62 851 7436 9313

Email

daffaraihan2004.work@gmail.com

Location

Yogyakarta, Indonesia

Send Me a Message