The German driver joined the Silver Arrows over the winter break having been released by Haas, with the American-owned outfit opting instead for Nico Hulkenberg's experience alongside Kevin Magnussen.
Schumacher will translate his on-track experience of the new generation F1 cars into the simulator to assist Russell and team-mate Lewis Hamilton across the new season, whilst also providing cover for Mercedes and McLaren should a driver be unable to race.