Trapped in a box

SandiMFSecurity Research

From zero-days to zero downtime —
I operate on both sides.

About Me

Builder
& breaker.

Obsessed with both sides: crafting solid code and finding where it breaks.

01

My Story

Full-stack developer with a hacker's mindset. I've spent years hunting bugs in production systems through bug bounty programs, and that experience shapes how I build software.

Every line of code I write is informed by knowing exactly how it could be exploited. I don't just ship features — I ship resilient systems.

When I'm not building, I'm breaking — responsibly. That cycle of offense and defense is what makes my work stronger.

Selected Work

Featuredprojects.

A collection of projects that showcase my skills in design, development, and problem-solving.

E-Commerce Platform
Full Stack
01

E-Commerce Platform

150%conversion increase

A modern e-commerce solution with real-time inventory management, seamless checkout, and analytics dashboard. Built with Next.js and Supabase.

Next.jsTypeScriptSupabaseStripe
SaaS Dashboard
UI/UX Design
02

SaaS Dashboard

4.8user satisfaction

Analytics dashboard for a B2B SaaS product. Focused on data visualization, user workflows, and accessibility.

FigmaReactD3.jsTailwind
AI Content Generator
AI/ML Integration
03

AI Content Generator

10K+monthly users

AI-powered content generation tool using GPT-4. Features include templates, team collaboration, and content optimization.

Next.jsOpenAIPrismaPostgreSQL
Mobile Banking App
Mobile Development
04

Mobile Banking App

99.9%uptime achieved

Secure mobile banking application with biometric authentication, real-time transactions, and budget tracking features.

React NativeNode.jsMongoDBAWS
Career Journey

Experience
& education.

2023 - 2025

Full-Cycle Developer

KUN Humanity System+ & Klinik Gunung Semeru

Handled the full development cycle independently: UI design, full-stack code, database architecture, and self-hosted deployment.

  • Built full-stack applications solo using Next.js, Node.js, and PostgreSQL
  • Designed and implemented custom design systems from scratch
  • Set up self-hosted server infrastructure: Starlink → Ruijie router → PC server
  • Integrated AI agents and automation workflows using n8n
2020 - Present

Security Researcher & Bug Bounty Hunter

Independent

Hunting vulnerabilities in production systems through bug bounty programs. Applying offensive security to build more resilient software.

  • Discovered and reported critical vulnerabilities via responsible disclosure
  • Active participant in bug bounty platforms
  • Applied offensive findings to harden own applications
2023 - Present

AI & Automation Engineer

Independent

Building AI agents and automation pipelines for data processing, task execution, and workflow optimization.

  • Built autonomous AI agents for research and task automation
  • Designed complex workflows with n8n and custom integrations
  • Implemented data analytics pipelines for actionable insights
Education
2015 - 2019

Software Engineer

Muhammadiyah

Specialized in Software Engineering. Graduated with honors.

Technical Skills

Skills &
expertise.

Constantly learning and adapting to new technologies while maintaining expertise in core fundamentals.

Frontend

React / Next.js95%
TypeScript90%
Tailwind CSS95%
Vue.js75%

Backend

Node.js90%
PostgreSQL85%
Prisma / Drizzle85%
REST / GraphQL88%

Design

Figma92%
UI/UX Design88%
Design Systems85%
Prototyping80%

Tools & Others

Git / GitHub95%
Docker75%
AWS / Vercel85%
CI/CD80%
Technologies I work with
ReactNext.jsTypeScriptNode.jsPostgreSQLMongoDBTailwind CSSFigmaAWSDockerGraphQLPrismaVercelGitHub ActionsRedisSupabaseStripeOpenAI
Get in Touch

Let's work
together.

Have a project in mind? I'd love to hear about it. Let's discuss how we can create something amazing together.

Location

Bandung, Indonesia

Availability

Open for freelance