wprowadzajcy
Wprowadzajcy is not a standard term in Polish. It is generally considered a misspelling or an orthographic variant of the present participle wprowadzający, formed from the verb wprowadzać (to introduce, to input, to bring in). In standard Polish, the correct form for the masculine singular present participle is wprowadzający; feminine is wprowadzająca and neuter is wprowadzające, with corresponding declined forms for different cases and numbers.
Grammatical notes: Wprowadzający functions as a present participle used attributively or as part of a compound
Usage and examples: In neutral, formal Polish, one would write osóba wprowadzająca dane do systemu musi
Notes: If encountered as wprowadzajcy, the form is usually a typographical error, a dialectal deviation, or