You have found a painting signed konrad j who is the artist?

The artist known as "Konrad J" could refer to various individuals, as the name is not uniquely identifiable without more context. It's possible that the artist is Konrad J. Kaczmarek, a contemporary painter, or another lesser-known artist. To accurately determine the artist, additional details such as the style of the painting, its provenance, or any exhibition history would be helpful. If you're looking for a specific artist, art databases or auction records might provide more clarity.