A prominent race engineer has returned to Williams for the 2011 season.

Spaniard Xevi Pujolar switched from the famous British team to the new Spanish outfit HRT last year.

At Williams, he formerly worked with the likes of Mark Webber, Juan Pablo Montoya and Ralf Schumacher and most recently Kazuki Nakajima, and this year will engineer fellow Spanish speaker Pastor Maldonado, according to virutasf1.com.

Another departed HRT team member is press officer Tabatha Valls, who has moved to Virgin.