I will reverse engineer your android app API and deliver a documented client

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scraperservices
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scraperservices
FiJoEz

About this gig

If your mobile app has no public API, I capture it.


Rooted Android emulator, mitmproxy with the CA injected into the Android 14+ trust store, QUIC/HTTP-3 blocked so every request shows up, Frida for certificate pinning, WebSocket capture for real-time protocols (SendBird, Ably), HMAC/token signing reproduced.


Deliverables:

  • Endpoint inventory with headers, auth flow and signing
  • - A working client script (Node.js or Python) that reproduces the calls
  • - A written protocol doc your team can extend

Recent work: car-marketplace chat over SendBird WebSocket + Cognito, HMAC-signed listing API, a pure-API booking client that fires at an exact second.


I only work on apps you own or where you have the right to interoperate. No payment, DRM or anti-cheat bypass.


Send me the app (APK or store link) and what you need from it. Feasibility answer within 24 h.


Get to know FiJoEz

FiJoEz

Web scraping and anti bot engineer, Nodejs, Playwright, Python

  • FromParaguay
  • Member sinceDec 2021
  • Last delivery11 months
  • Languages

    English, Spanish
I build scrapers that keep working on sites that block everyone else: DataDome, Akamai, Cloudflare, PerimeterX. Headful Chrome/Firefox, residential and mobile proxies, session pinning. 7 years running a data-collection engine that processes ~1M classifieds listings per year on a fleet of Windows PCs plus AWS. I also reverse engineer Android app APIs (mitmproxy, Frida) and deliver documented clients, and build web apps and internal tools (Next.js, Node.js, Spring Boot, MongoDB). You get Dockerized code with a README and a sample dataset. No personal data of private individuals.

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