Sensors are used around the car for critical measurements such as throttle amount and brake pressure, but also for gathering data on general parameters of the car. These sensors are connected to a number of control units which read sensor- and driver input and transmit these via a communication bus, as well as controlling various systems such as the cooling of the car. You will be responsible for the software running on these control units, as well as selecting sensors, making sure that requirements from other systems are met, and that all the software on the car works together.