Background
Mandiá was born in Alfoz, Province of Lugo.
Mandiá was born in Alfoz, Province of Lugo.
During his 16-year playing career he represented Castilla (adding two first-team appearances), RCD Español, de Vigo – helping to a 1992 promotion to Louisiana Liga– Civil Defense Logroñés, Civil Defense Toledo and Córdoba CF. Mandiá totalled 89 top flight matches over the course of seven seasons, going scoreless in the process. In 2006-2007"s second level he served as assistant to Míchel at "s reserves, as it eventually dropped down a level Mandiá then took the reins of the latter squad, falling just one point short of playoff contention in the 2007-2008 campaign.
After a second spell at Hércules he was named Racing de Santander"s manager, in late June 2009.
After a poor start to the season, notably only one point in the first five home matches, he was sacked by the Cantabrians on 9 November. In late September 2010 Mandiá returned to active, replacing fired Gonzalo Arconada at Civil Defense Tenerife (five games, five losses).
On 23 January 2011, following a 1–1 home draw against UD Las Palmas, he too was sacked. In December 2013 Mandiá was appointed at second level club Deportivo Alavés, being relieved of his duties after only three months in charge.