Former Tyrrell deputy technical director Mike Gascoyne has joined Jordan as chief designer.
Jordan's season has been poor, with drivers Ralf Schumacher and Damon Hill unable to score a world championship point.
Gascoyne, who worked at McLaren for two years as an aerodynamics specialist after leaving Cambridge University in 1989, is regarded as one of the brightest talents in the Formula One.
Gascoyne starts work with Jordan at the pre-British Grand Prix test session at Silverstone this week.