Senior Manager, Tax Transformation and Technology, Financial Services, London

EY Tax is a market leader, renowned for delivering sustainable growth and empowering our people to shape their own careers.

Our diverse, collaborative team advises on high-profile transactions, combining technical expertise, innovation and a genuine focus on continuous development.

Join us to work on challenging, multi-country projects in a supportive, dynamic environment where your impact truly matters.

Key Responsibilities

• Lead the design and delivery of large-scale Tax Technology and Transformation programmes across Financial Services clients, including direct tax, indirect tax, tax provisioning, BEPS/Pillar 2 and tax data transformation initiatives.
• Act as the engagement lead for complex technology implementations, overseeing solution strategy, architecture, delivery governance, risk management, and stakeholder engagement.
• Provide deep subject matter expertise on leading tax technology platforms and tax operating model transformation, including vendor evaluations, solution selection, implementation, and optimisation.
• Serve as a trusted advisor to Heads of Tax, CFOs, Finance Transformation and Technology leaders on tax transformation strategy, technology roadmaps, and future-state operating models.
• Lead multi-disciplinary teams of tax, technology, and data professionals, providing coaching, technical oversight, and quality assurance across engagements.
• Drive business development activity including originating opportunities, leading RFP responses, developing business cases, managing proposals, and supporting go-to-market initiatives.
• Build and maintain strong relationships across the tax technology ecosystem, including software vendors, alliance partners, and key market stakeholders.
• Support the continued growth of the UK Financial Services TTT practice through team development, recruitment, proposition development and thought leadership.
• Ensure delivery excellence across all engagements, balancing technical quality, commercial outcomes, and client value.

Skills and Attributes for Success

• Proven experience leading large-scale Tax Technology implementations and transformation programmes, including direct tax, indirect tax, tax provisioning, and tax data management solutions.
• Strong understanding of Financial Services tax operations, regulatory requirements and operating models across banking, insurance, asset management, and capital markets.
• Deep experience delivering complex technology-enabled transformation programmes, managing multiple workstreams, stakeholders, budgets, and delivery teams.
• Ability to define solution architectures and translate tax, data, and process requirements into practical technology-enabled solutions.
• Demonstrated ability to lead, mentor, and develop high-performing teams, providing technical leadership and implementation best practice.
• Strong commercial acumen with experience leading proposals, developing business cases, and winning complex client engagements through RFP processes.
• Established relationship-building skills with senior client stakeholders, software vendors, and alliance partners.
• Experience working across ERP platforms (SAP, Oracle, Workday, Dynamics), cloud technologies and automation solutions.
• Excellent communication and presentation skills, with the ability to engage effectively with both tax and technology stakeholders at executive level.
• Proven ability to identify new opportunities, develop client relationships and contribute to practice growth.
• Ideally, You’ll Also Have
• Experience working in financial services.
• Experience of ERP software (e. g., SAP, Oracle etc).
• Broad knowledge of tax compliance reporting requirements in Corporation Tax, Payroll Taxes, Income Tax and VAT.
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