sterujcego
Sterujcego is not a standard Polish word by itself. In most contexts it appears to be a misspelling or nonstandard variant of sterującego, the genitive singular form of sterujący, which comes from the verb sterować meaning to operate or to control. The standard form sterujący is used to describe someone or something that controls or governs a system or process.
Etymology and usage: Sterujący is formed from sterować plus the suffix -ący, which yields the present participle
Context and interpretation: If you encounter sterujcego as a standalone term, it is most likely a typographical