In a successful 2008-09 UEFA Cup campaign with Lech Poznań, Rengifo finished with six goals in the competition, including scoring in both legs of round of 32 tie against Italian Serie A club Udinese Calcio.

In January 2012, he was released from Omonia and returned to Peru to play for Sporting Cristal.

In March 2009, Rengifo was called up by coach José del Solar for the World Cup 2010 qualifiers with Chile and Brazil.

Rengifo was left behind as the national team returned from a match in Colombia on 10 June 2009.

[1] He is nicknamed Charapa, which is how the people from the Amazonas basin is informally called in Peru.