We are hiring Bin File Definition Developers to work on highly technical ECU-level software used to analyze, decode, and expand advanced system capabilities. Responsibilities include reverse engineering ECU binary files and bare-metal assembly code, disassembling and analyzing complex firmware structures, building bin file definitions using .NET and C#, identifying critical maps such as fuel, ignition, and performance parameters, and unlocking hidden system functions through deep code analysis. Candidates must have strong experience in reverse engineering assembly/binary code, hands-on work with microcontrollers such as RH850, SH70xx, M32R, and M16C, a solid background in C# and .NET development, and experience using IDA Pro, Ghidra, or similar tools. Nice to have include embedded C development experience, ECU map identification tools like WinOLS, binary pattern matching, and low-level debugging. This is a rare opportunity to work on deep technical challenges where software meets hardware at the lowest level.