Justin is a strong versatile player, capable of playing as a left winger as well as a left fullback. His speed and technical ability are an advantage for any team looking to play on the counter. On offense his ability to find the strikers with his precise crosses is a key factor to his game,as well as tremendous shot power. Defensively his positioning is great to where he is able to support going forward.

Onwuka currently plays for TSV Kirchrode in Germany