Not sure about Uber but there are plenty of cabs at the station. Most take cards as well as cash - but there are also cash machines in the station. the cavb journey is 10-15 minutes, depending on traffic.
Alternatively, there's the 99 bus - the Babraham/Milton Park & Ride Service - that goes from the Railway Station to the Cambridge Science Park and which takes about 30 minutes. The stop is right near the junction with Milton Road and Cowley Road. You're then looking at about a five minute walk to SJIC.