I assume you cannot contribute to your new employer scheme ? If so, you could commence a PRSA for the next 2 years, make use of up to 40 % tax relief on your contributions, then transfer it into the new employer scheme when you are enrolled, or, transfer it into a separate PRB.(Personal Retirement Bond), PRB’s, can be matured as early as 50.
For the previous employment, you could just leave it there, transfer that to a PRB, or, transfer it into your new employer scheme, but that is dependant on your circumstances, it can be convienient to have separate pension pots/ PRB’s which can be matured when the need arises, over time.
Having everything in one place is not always a good idea.