Available for workCapricorn
Photo of Rhamadhany
Freelance Developer

DeveloperSecurityResearchBug Bounty

Building web & Android products that are clean, fast, and secure — from the frontend down to deeper system modules.

January 10, 2000
About

Building with precision.

I'm Rhamadhany, a freelance developer working at the intersection of web, Android, and security. I don't claim to master everything — what I bring is the ability to learn fast and deliver exactly what the project needs.

Vibe Coding

Learn on demand, ship on time.

I use AI-assisted coding (vibe coding) as a tool, not a crutch. It lets me pick up unfamiliar frameworks, languages, and stacks quickly — then apply them with care, review, and testing before anything ships.

  • Fast ramp-up on new stacks
  • Always reviewed & tested before delivery
  • Focus on solving the real problem

Capricorn

EarthDec 22 — Jan 19

Born January 10, 2000 · ruled by Saturn. An earth sign that grows slowly but firmly — and my way of working is the same: patiently building the foundation, meticulous to the smallest detail, accountable for the outcome.

DisciplinedMethodicalPatientResponsibleAmbitious

01

Impact-driven

02

Disciplined & structured

03

Highly curious

04

Collaborative & open

Experience

2023 — now

  • 2023 — now

    Freelance Full-Stack Developer

    Remote · Various clients

  • 2023 — now

    Android Developer · BNeoTech

    Google Play Store

  • 2023 — now

    Android Modding & Xposed Development

    Root · Magisk · LSPosed · Custom Modules

  • 2023 — now

    Bug Bounty Hunter

    Public & private programs

Services

What I do.

Featured

Web Development

Modern websites built with Next.js & Tailwind — fast, responsive, SEO-friendly.

Learn more

Android Development

Native Android apps with Kotlin & Jetpack Compose — clean and stable.

Android Root & Xposed

System modifications, bypasses, and runtime hooking with Magisk, LSPosed, Frida.

API & Backend

Clean, secure, and scalable REST & RPC APIs — Node.js, Python, PostgreSQL.

Bug Bounty & Security

Recon, audits, and controlled exploitation — reports you can act on.

Web Scraping & Automation

Resilient scraping pipelines and efficient workflow automation.

Xposed Module Development

Custom Xposed/LSPosed modules tailored to specific app needs.

Research & Development

Idea exploration, rapid prototypes, and technical validation before production.

Skills

Chosen stack.

Tools and technologies I've shipped with — and keep learning as new projects demand. Working familiarity, not claimed mastery.

Frontend

11 skills

Next.jsReactViteTypeScriptJavaScriptTailwinddaisyUIFramer MotionZustandReact Queryshadcn/ui

Backend & Data

09 skills

Node.jsExpressPythonFastAPIGolangRustPostgreSQLSupabaseRedis

Mobile

06 skills

KotlinFlutterJetpack ComposeRoomRetrofitCoroutines

Android Modding

08 skills

RootMagiskXposedLSPosedFridaSmaliAPKToolJadx

Security & Automation

09 skills

PentestBug BountyBurp SuiteNmapMetasploitWiresharkScrapingPlaywrightSelenium

DevOps & Tools

09 skills

GitGitHub ActionsDockerLinuxNginxCloudflareCloudflare R2VercelPWA
Projects

Selected work.

Web App · Pre-launch

Kedai

kedai-5at.pages.dev · 0% commission

Digital storefront platform for Indonesian small businesses — 0% commission, direct WhatsApp checkout. Currently pre-launch on Cloudflare Pages. Built with Vite, Supabase, and Cloudflare.

ViteSupabaseVanilla JSCloudflarePWA
https://kedai-5at.pages.dev/
KKedai
WA

Android Studio · Publisher

BNeoTech

BNeoTech · Borneo Apps Store

A one-person Android studio shipping a portfolio of utility apps on Google Play — from VPN clients and virtual disks to AI upscalers and system cleaners.

BNeoTech

7+ apps

Play Store
Apps in this studio

Android · Utility · Root

Apps Killer

Stop Apps!

Force-stop background apps through three escalating paths: ADB shell (no root), Root access, or Xposed/LSPosed hook. One-tap kill without opening each app — clean, fast, no bloat.

  • 01ADB

    No root · wireless debugging

  • 02Root

    Magisk · su binary direct kill

  • 03Xposed

    LSPosed hook · intercept lifecycle

FlutterKotlinADBRootXposed

Android · V2Ray · Network

BNV2ray

V2ray Android

BNV2ray — V2Ray client for Android with VPN tethering and subdomain discovery. Route traffic through VMess/VLESS, share the tunnel over hotspot, and probe subdomains — all from one app.

  • 01V2Ray Core

    VMess · VLESS · Shadowsocks

  • 02VPN Tethering

    Share tunnel via hotspot

  • 03Subdomain Scan

    Golang engine · probe subdomain

FlutterKotlinGolangV2RayTethering

Android · Virtual Disk

VDisk Android

Virtual Disk!

VDisk Android — turn your phone into a real disk for a computer. Mount, create, and download ISO/IMG images, then boot from Android as if it were a USB drive.

  • 01Mount

    ISO · IMG as virtual disk

  • 02Create

    Build disk image from scratch

  • 03Download

    Download ISO directly in app

FlutterKotlinVirtual DiskBootable
Contact

Let's collaborate.

Responsive · Usually under 24 hours

Have an idea?
Let's build it together.

Open to freelance projects, research collaborations, or just trading ideas about web, Android, and security.

rhamadhanyx1@gmail.com