SYSTEM.ONLINE

Hi, I'm
Muhammad Fajar Nugroho.

Architecting Infrastructure, Securing the Perimeter, Crafting the Logic.

A Backend & Security Engineer based in Indonesia, specializing in scalable web systems, digital security, and clean, efficient code.

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Muhammad Fajar Nugroho
Verified AWS & CCNA

Technical Focus Areas

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Cyber Security

Enforcing Zero-Trust architecture. Specializing in threat hunting, penetration testing, OSINT, and network hardening.

0x8FA... ENCRYPTING_PAYLOAD // WAITING_FOR_HANDSHAKE
Zero-Trust
PenTesting
DEV-03 // SRC

Software Engineer

Engineered logic, clean code, and high-throughput API integrations.

PYTHON GO
NODE-01 // NET
AWS ACTIVE

Cloud Arch

EC2.01
RDS.DB

Featured Projects

Selected work — real systems, not demos.

All Projects
completed

Sistem Informasi Manajemen Kader

Full-stack web app for managing organization members with RBAC, admin dashboard, and Cloudflare R2 storage.

Role-based access control + ISO 27001 compliance
Laravel PHP MySQL
completed

Backend API with Go Fiber

High-performance RESTful API with JWT auth, middleware chaining, and PostgreSQL. Clean architecture.

Sub-millisecond response times, clean architecture
Golang Fiber PostgreSQL
ongoing

CTF Writeups & Security Research

Capture The Flag solutions covering network forensics, web vulnerabilities, cryptography, and OSINT.

Competed at Diskominfo Tangerang Selatan CTF 2023
Python CTF OSINT

Recent Notes

Technical deep-dives on Cloud, Security, and Backend Engineering.

All Notes
Security
The Silent Threat: Supply Chain Attacks via AI-Generated Malicious Packages

The Evolution of Supply Chain Attacks...

7 min read
Cloud
The Multi-Cloud FinOps Dilemma: Controlling Egress Costs at Scale

The Illusion of Cheap Storage...

6 min read
Development
Python 3.13 and the Death of the Global Interpreter Lock (GIL)

A New Era for Python Concurrency...

5 min read