Fadel Muhammad

Full-Stack Engineer · Systems Builder · AI Automation

About

Full-stack engineer with 5+ years building production systems across fintech, SaaS, and AI automation. From Spring Boot microservices handling 10K+ TPS at Bank Mandiri to Next.js SaaS apps deployed on Vercel + VPS — I build end-to-end.

Currently running autonomous AI pipelines, crypto DCA bots, and shipping freelance projects. Comfortable across the entire stack: backend APIs, frontend UI, database design, container orchestration, and CI/CD.

5+ Years Experience
50K+ Merchants Served
10K+ Peak TPS
99.9% Uptime SLA

Skills

Backend

Java Spring Boot Python Node.js REST API

Frontend

Next.js React TypeScript

Database

PostgreSQL Supabase Prisma Redis

DevOps

Docker Kubernetes Vercel GCP

AI / Automation

LLM Integration Hermes Agent Media Pipeline

Payments & APIs

Midtrans QRIS Telegram Bot Binance API

Experience

Senior Software Engineer Jan 2022 — Present

Yokke

  • Architected Spring Boot microservices for QRIS PWA Bank Mandiri — 50K+ merchants, 10K+ TPS
  • Anti-Fraud Detection System with ML — 95% fraud reduction, 100K+ daily txns
  • Inventory Management System — 300% data accessibility improvement
  • AI/LLM integration for workflow automation
  • Kubernetes deployment with 99.9% uptime SLA
  • Nyala Merchant platform for OCBC

Tech: Spring Boot, K8s, PostgreSQL, React, GCP, AI APIs

Software Engineer / Lead Developer Oct 2020 — Dec 2021

PT. Rekayasa Aplikasi Digital

  • Led backend/frontend teams for e-learning platforms
  • Built scalable web/mobile apps with Laravel and Express.js
  • Integrated Midtrans payment + logistics APIs
  • Optimized API: 500ms → 100ms response time

Tech: Laravel, Express.js, React, MySQL, Docker

Projects

POS SaaS System

Next.js, Prisma, Supabase, Midtrans

Point-of-sale SaaS for warungs with real-time inventory, payment gateway, and VPS deployment.

GitHub →

QRIS PWA for Bank Mandiri

Java, Spring Boot, K8s, React, PostgreSQL

Payment PWA handling 50K+ merchants and 10K+ TPS with 99.9% uptime SLA.

Anti-Fraud Detection

Java, Spring Boot, ML, Redis

ML-powered fraud detection reducing fraud by 95% across 100K+ daily transactions.

Dakwah Content Pipeline

LLM, FFmpeg, Telegram Bot, YouTube API

Autonomous AI pipeline generating daily dakwah videos with staging, approval, and scheduled publishing.

Crypto DCA Bot

Python, Binance API, Docker

Multi-pair smart DCA system with auto-rebalance, stop-loss, and Telegram monitoring.

Stock Alert System

Python, yfinance, Telegram Bot

Real-time stock monitoring with price alerts and automated notifications.

GitHub →