👋Hello there

Full Stack Engineer who builds scalable systems and AI-powered products.

I build backend, web, and mobile applications from zero to production from system design and CI/CD automation to AI features used by thousands of users.

Muhammad Daffa Raihan

About

I don't just use tools I understand how they solve real problems in production.

I'm an Informatics student with experience building and shipping end-to-end systems: web, mobile, backend services, and AI-powered applications.

I'm used to real production environments automation, CI/CD, database design, and scalable backend architecture.

My focus is building systems that are scalable, maintainable, and impactful for users.

📊
45+
Active Projects
👥
3.9K+
Real Users
82%
Success Rate
🎓
150+
Students Mentored

Tech Stack

NestJS
NestJS
Express
Express
Golang
Golang
Next.js
Next.js
Vite
Vite
PostgreSQL
PostgreSQL
MySQL
MySQL
Supabase
Supabase
Firebase
Firebase
NestJS
NestJS
Express
Express
Golang
Golang
Next.js
Next.js
Vite
Vite
PostgreSQL
PostgreSQL
MySQL
MySQL
Supabase
Supabase
Firebase
Firebase

Projects

A selection of projects I've shipped

Project Image

IMUII

End-to-End Automation Platform

IMUII is an automation platform I built from scratch as Founder & Technical Architect. It manages 45+ active projects with an 82% deployment success rate.

Key features:

  • Automated CI/CD
  • One-command project initialization
  • Real-time monitoring
  • GitHub & environment provisioning

Tech Stack:

GolangDockerPostgreSQLRedis

Impact:

Used across dozens of active projects • ~19% lower CPU usage in production

Project Image

HalalMate

AI-Powered Mobile App

HalalMate is an AI-powered mobile app that helps Muslim travelers verify halal food automatically. I built the backend services and AI pipeline using OCR and OpenAI.

Key features:

  • AI-powered halal verification
  • OCR for food label scanning
  • Google Maps integration

Tech Stack:

GolangFlutterOpenAI APIOCRGoogle Maps API

Impact:

93% classification accuracy • 100% recall

Project Image

KeepUp

Mental Health Research System

Backend system for mental health research at Universitas Islam Indonesia. It handles secure authentication, role-based access control, and automated report generation.

Key features:

  • Secure authentication & RBAC
  • Automated report generation (PDF & Excel)
  • AI-powered report interpretation

Tech Stack:

NestJSPostgreSQLRedisOpenAI API

Impact:

A secure, automated research pipeline for mental health studies

Work Experience

Experience across startups, industry, academic labs, and production systems with real users.

Intern Full Stack Web Developer

QBIT

Jan 2026 – Present

Building modular backends and AI workflows for production needs.

Key contributions:

  • Modular NestJS backend in a monorepo
  • RAG workflows with n8n
  • AI chatbot and live chat
  • AI-powered document automation

Full Stack Web Developer

Emica

Jun 2025 – Present

Developing and maintaining a full-stack web application for a client-facing product in production.

Key contributions:

  • Backend systems and database schema with Node.js and PostgreSQL
  • Reservation, customer, and analytics data pipelines
  • React dashboard for metrics and visualization
  • WhatsApp booking and analytics
📊
Impact: ~3,900+ reservations from real users • 85% click-to-contact conversion

Informatics Laboratory Assistant

Faculty of Industrial Technology

Sep 2023 – Jan 2026

Teaching assistant and mentor for core Informatics courses: programming logic, web development, algorithms & data structures, and computer networks & systems.

Contributions:

  • Mentored 150+ students in labs and technical assignments
  • Hands-on debugging and problem solving
  • Turning complex ideas into practical explanations

Full Stack Mobile Developer

Savebite

Aug 2024 – Jan 2025

Backend services for a food-tech mobile app connecting clients to the server.

Contributions:

  • RESTful APIs with Node.js and Express
  • Relational database schema design
  • Android features with Jetpack Compose

Back-End Developer

TEDXUII

May 2024 – Jun 2024

Backend API for a web-based ticketing system.

Contributions:

  • RESTful APIs with Express.js
  • PostgreSQL and Redis for transactional workloads
  • Deployed to a VPS for production

Achievements & Awards

Highlights from competitions, research, and academics

Research Assistant Scholarship

S2 Informatika UII

Fully funded

Gold Pin Award

Top Graduate

Highest distinction undergraduate

Silver Medal

INDES 2025

Project: HalalMate

International competition (Malaysia)

Best Paper

Automata 2025

Topic: XAI-based halal detection system

Education

Academic background and focus areas that support end-to-end product development.

S.Kom. Informatics - Universitas Islam Indonesia (UII)

Bachelor'sCum LaudeHigh GPA

Aug 2022 – Jan 2026 · GPA 3.97 / 4.00 · Graduated Cum Laude

  • Completed an accelerated study period while maintaining top academic performance.
  • Leadership & communities: Programming Study Club and Google Developer Student Club (GDSC).

MAN Insan Cendekia

High schoolSTEM track

Aug 2019 – Aug 2022 · GPA 88 / 100

  • Strengthened fundamentals in math and problem-solving through competitive practice.
  • Extracurricular: Math Club.

Contact

Interested in collaborating or discussing a project?

Open to: Internships, full-time roles, research collaboration, and freelance / contract work.

Or reach me directly: