In his early career Yaromko played in Belarusian SSR league for Burevestnik Minsk, before leaving to play a few seasons in Central Asia and Poland.
He returned to Belarus in 1993 and immediately became one of the most prolific strikers of Belarusian Premier League. He scored 103 goals in 184 games between 1993 and 2000 and became a league top scorer twice (in 1995 and 1998). Despite this, he didn't have much of a career in Belarus national team, for which he only played once (friendly match against Poland in 1994).
After one season with SKAF Minsk, Yaromko spent next few years studying for a manager. In 2005, he managed Smena Minsk and at the end of the year was appointed as a head coach of a new club FC Minsk, which took over Smena license. He left Minsk in 2009, after which he worked in Dinamo Minsk and SKVICH Minsk.