Mastercard, Reserve bank, BankServ. Patching and Business enhancement implementations Ensure that the Card rules affect transaction flow. HSM & Key Management. Familiarity with the following: Cryptography will lead, manage and work in a team with the following responsibilities: Leading and managing by example alignment with the Group's objectives Mentor to junior staff. Transaction switching to MasterCard, Visa application software. Consulting with Account managers, Executive Head: Innovation, Architecture &