Migration Lead - Core Banking (Savings) | £650pd | Basingstoke | Contract
Overview
Oliver James has partnered with a leading financial services organisation to support a major core banking transformation programme, focused on the migration of savings products onto a new platform.
This is a senior, programme-level role with full ownership of the end-to-end migration strategy and execution. You will be responsible for ensuring a controlled, compliant and customer-focused transition of legacy products and data, working across technology, operations, finance, risk and third-party vendors.
This role offers the opportunity to lead a high-impact migration within a regulated environment, with significant visibility across senior stakeholders and critical programme outcomes.
Key Responsibilities*Own the end-to-end migration strategy, planning and execution across savings products (ISA and non-ISA)
*Define migration approach (phased vs big bang), scope, tooling and acceptance criteria
*Lead data mapping, transformation, reconciliation and validation frameworks
*Manage integrated migration plan, including milestones, dependencies, rehearsal cycles and cutover
*Oversee dress rehearsals, defect resolution, go-live execution and rollback readiness
*Ensure full data integrity, auditability and traceability from source to target systems
*Coordinate cross-functional teams across Technology, Operations, Finance, Risk and Compliance
*Manage third-party vendors and system integrators across migration activities
*Ensure continuity of regulatory, financial and operational reporting through migration
*Support operational readiness, training, hypercare and post-migration validation
Essential Skills*Proven experience leading large-scale data migrations within financial services
*Strong knowledge of savings products (Fixed Term, Easy Access, Notice, ISA and non-ISA)
*Experience with core banking platforms (e.g. Mambu, Temenos, Finova, Salesforce or similar)
*Deep understanding of FCA/PRA regulated environments and stakeholder engagement
*Expertise in data migration disciplines including mapping, transformation, reconciliation and validation
*Experience managing cutover, dress rehearsals and migration risk
*Strong stakeholder management across business, technology and regulatory functions
Desirable Skills*Experience delivering core banking transformation programmes
*Background in defining and implementing Target Operating Models (TOM)
*Exposure to regulatory reporting, data lineage and MI continuity frameworks
*Programme or project management certifications (MSP, PRINCE2, PMP)
*Experience working with system integrators and third-party vendors in complex environments