Yemi Oluseun

Engaged by PE firms, boards, and executive teams as an interim transformation lead delivering value creation, post-merger integration, and exit readiness across regulated and high-growth environments. Aligns Target Operating Models, RevOps, treasury, and finance systems to strengthen control, scalability, and valuation. Roles involved leading the design and implementation of TOMs, streamlining processes, and ensuring operational excellence.

• Avalara (Vista Equity) – B2B Tax SaaS: Consolidated finance systems and automated reconciliation, reducing manual cost base and supporting a $8.4B exit. Led initiatives to optimise technical architecture, enhancing system efficiency and reducing operational costs.
• Thredd (Advent) – Issuer Payment Processing: Delivered ERP rollout and compliance framework enabling MENA expansion and improved transaction scalability. Integrated geography data into decision-making processes, enhancing operational efficiency and regional understanding
• Europe Arab Bank: Directed Treasury TOM and LIBOR transition post-merger, ensuring PRA-aligned controls and operational resilience.
• Galaxy Digital (Crypto): Delivered CFTC swap-dealer readiness programme enabling institutional market access. Led strategic initiatives to enhance organizational growth and operational efficiency.
• Meta (Facebook): Designed EMEA customer growth and RevOps programmes to reduce churn and improve LTV. Developed and implemented training programs to improve team performance and skillsets.

Led business, regulatory, and technology TOM transformation initiatives across Treasury, Investment Banking, and Risk & Compliance, ensuring operational resilience, regulatory alignment, and technology modernisation. This involved proactive management and ensuring disciplined execution.

• Brexit Legal Entity Setup– Designed & implemented credit TOM for Barclays Europe, ensuring compliance & seamless migration of critical functions, aligning with the firm's growth strategy.
• £20M Treasury Ring-Fenced Bank Programme – Stabilised front-to-back treasury operations by managing systems integration of 50+ applications, ensuring compliance with UK ring-fencing regulations. Oversaw initial £5bn trade execution, demonstrating leadership and accountability. Developed strategic initiatives to improve customer satisfaction and retention rates.
• Treasury Technology Target Operating Model Design – Led front-to-back trade lifecycle mapping for fixed income, rates, FX, and money markets, optimising risk, liquidity, and funding models through streamlining processes. Led cross-functional teams to enhance operational efficiency and streamline workflows.
• Governance & Control Oversight - Chaired change-control forums with CIO and Treasury COO to ensure audit-ready documentation and full compliance with PRA ring-fence standards, showcasing disciplined leadership.
• Systems Control & Identity Access Management (IAM) – Strengthened business continuity, segregation of duties, and risk controls across investment banking applications, conducting access recertification reviews using OneCert & ServiceNow, ensuring data quality.
• · Cutover & Testing Leadership – Managed front-to-back testing, external connectivity, and production cutover for the Ring-Fenced Bank launch, ensuring a smooth go-live transition through proactive management.

Delivered front-to-back transformation across Cleared Derivatives and Custody, spanning TOM design, system re-platforming, and process automation. Partnered with senior business and technology leaders to improve control, efficiency, and cost transparency across global trading and operations. This included leading TOM design and ensuring operational excellence.

• Structured Derivatives TOM: Led design and delivery of a new trade-capture platform; applied Lean Six Sigma to optimise quote-to-price workflow, reducing cost per trade and improving control across three regions, demonstrating disciplined execution. Led cross-functional teams to deliver complex projects on time and within budget.
• Custody Re-platforming: Delivered key analysis for a multi-year migration from AS400 (Mainframe) to cloud-based TCS BaNCS, ensuring legacy parity, vendor accountability, and regulatory compliance, supporting system configuration. Managed project lifecycles from initiation to closure, ensuring alignment with organizational goals.
• Asset-Servicing Automation: Introduced STP between the Announcement Capture hub and Custody System, removing manual breaks and achieving measurable FTE savings.
• Change Governance: Coordinated annual prioritisation and budget planning across EMEA; managed a $23 m portfolio and chaired forums with the CIO, senior business, and tech leads

Led high-net-worth client migrations and KYC remediation, ensuring seamless transitions, regulatory compliance, and operational efficiency.

• Client Migration – Successfully migrated 25 high-net-worth client accounts (£20M AUM) from Jersey to London, collaborating with compliance and relationship managers, ensuring communications were clear. Developed and implemented project plans, ensuring alignment with strategic objectives and client needs.
• KYC Remediation – Led compliance reviews, identifying and resolving KYC issues, streamlining onboarding processes, and reducing regulatory risk, demonstrating disciplined attention to detail.