Team will pair Vaxiviere with Dutchman van Buuren.
Matthieu Vaxiviere and Meindert van Buuren will race for the Lotus team in the Formula Renault 3.5 series during the 2015 season.
Frenchman Vaxiviere remains with the team he joined last year, and with whom he finished eighth in last year's championship.
"After a promising 2014 season I am ready for a new challenge, because I want to try and fight for more podium finishes and for my first victory in Formula Renault 3.5," he said.
"I believe that I am more than ready for this mission as well as my team. I will do everything I can to make sure we get a good result in the championship."
The Czech team will pair Vaxiviere with Dutchman van Buuren, who joins the squad from Pons Racing after having testing for Lotus at the end of last year.
"I'm really happy to have reached this agreement," van Buuren said. "At the test at Barcelona I immediately noticed how focused the team operates, working very methodically on providing a driver with a winning machine.
"The team will be a new experience for me, but not entirely new, since my engineer will be a fellow Dutchman with whom I have worked before. If the performance is there, the connections with the Lotus F1 team will be very short."