Programme Manager — Client Onboarding & Migration

Own end-to-end delivery of large client onboarding and implementation programmes, covering both greenfield builds and migration of existing customer portfolios onto the platform

Manage senior client stakeholders directly — setting and holding expectations on scope, plan, deliverables and timelines

Lead a matrix team of project managers and workstream leads across development, testing, security, training, operations and business solutions

Establish and run programme governance; manage risks, issues, dependencies and change; control cost, time and quality

Work closely with the PMO to keep delivery aligned to methodology and governance standards

A track record running large, complex, client-facing technology programmes

Strong senior stakeholder management — comfortable owning the client relationship at programme level

Experience leading multi-workstream / matrix delivery

Able and willing to be on-site in Basildon five days a week

UK right to work

Background in payments, merchant acquiring, card processing or fintech platform delivery

Specific experience with client onboarding or platform migration programmes

A recognised delivery qualification (e.g. MSP, PRINCE2, PMP)