Mainframe Migration Implementation Lead

NTT DATA Services in London/Sheffield is seeking an Implementation Manager for Mainframe Product Migration, operating on a hybrid model (London or Sheffield + remote). You will plan, coordinate and execute end-to-end migration cutovers, ensuring a controlled deployment with governance across technology, operations and third parties.

The role demands strong leadership under high-pressure cutover windows, extensive experience with z/OS environments, ITIL-aligned change/release processes, and