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

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The opportunity

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EY’s UK Financial Services Tax Technology and Transformation (TTT) business is a rapidly growing team of technology, data science, business transformation and tax professionals that help financial services organisations to redefine their tax operations and functions, driving transformation for the digital age.

We are expanding our team of tax technologists within the UK Financial Services TTT business to reflect the growing demand for tax technology related change and transformation projects across our client portfolio. The role will focus on enabling our clients to transform their business processes across a range of tax domains (including direct, indirect and product tax) through the effective use of tax technologies, data strategies and automation capabilities. In doing so you will be supporting the delivery of Tax engagements to some of the largest global institutions across the Financial Services industry (including many FTSE 100 and Fortune 500 organisations).

Your 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

What we look for

• 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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