Cyrex

Game Reverse Engineer

Cyrex

full-time

Posted on:

Location Type: Remote

Location: Remote • 🇧🇷 Brazil

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Job Level

Mid-LevelSenior

Tech Stack

AndroidAssemblyiOSPackerPythonUnity

About the role

  • Reverse engineer game binaries and networking to map protocols.
  • Bypass client-side protections (SSL pinning, anti-cheat, packing/obfuscation).
  • Build PoCs and tools (hooks, loaders, traffic replayers).
  • Collaborate with developers and security engineers to analyze network protocols.

Requirements

  • Proficient in C++, C#, assembly, and Win32 API.
  • Working knowledge of Python.
  • Experience with IDA/Ghidra, x64dbg/WinDbg/LLDB.
  • Skilled in static and dynamic reverse engineering.
  • Capable of capturing, decrypting, and replaying network traffic.
  • Strong understanding of x86/x64/ARM/ARM64 (calling conventions, ABIs, compiler artifacts).
  • Familiar with VMProtect, Themida, custom VMs, and il2cpp bridges.
  • Able to analyze protected APKs and IPAs.
  • Working knowledge of
  • Android: Frida, Magisk, LSPosed, ART/JNI hooks, split APKs, packer evasion.
  • iOS: Frida, cycript, r2frida, trust cache/entitlements, ARM64e/PAC, IPA signing.
  • Game Tech: UE4/UE5 (UE4SS), Unity, dnSpy, il2cpp.
  • Networking: Wireshark, mitmproxy, Scapy.
Benefits
  • An opportunity to hone and improve your skills by applying them to a diverse variety of gaming projects
  • The chance to work closely with a team of like-minded creative professionals in a fast-paced, multicultural environment on a variety of gaming projects
  • A competitive salary
  • Ongoing training and professional self-improvement opportunities

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
C++C#assemblyWin32 APIPythonstatic reverse engineeringdynamic reverse engineeringnetwork traffic analysisx86x64