US Corporate Tax - Waterloo - Senior Manager

US Corporate Tax - Waterloo - Senior Manager

Location: Toronto

Other locations: Primary Location Only

Salary: Competitive

Date: May 26, 2026

Job description

Requisition ID: 1713524

At EY, were all in to shape your future with confidence.

Well help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go.

Join EY and help to build a better working world.

The opportunity

As a US Tax Senior Manager in our U.S. Tax Practice, you will lead large and complex engagements, serving as a trusted advisor to multinational clients across public and private sectors. Building on deep technical knowledge, youll drive high-quality U.S. compliance delivery and provide practical, innovative tax advice across U.S. federal and state matters, as well as cross-border considerations.

In this role, you will be accountable for engagement strategy, technical leadership, risk and quality, and team development. Youll cultivate strong client relationships, identify and advance opportunities, and contribute to the growth of EYs U.S. Tax practice in Canada through thought leadership, coaching, and participation in national initiatives.

This job posting relates to an existing vacancy within our organization.

Your key responsibilities

Lead and oversee multiple complex U.S. tax compliance engagements end-to-end, ensuring technical accuracy, quality, and timely delivery

Serve as a primary client contact and build trusted relationships with tax leaders and key stakeholders

Provide technical leadership on U.S. corporate and partnership taxation matters, including federal and state considerations

Guide cross-border tax issue spotting and collaborate with global teams as needed

Review and sign off on key deliverables i.e. returns, workpapers, technical memoranda and drive risk and quality management across engagements

Coach, mentor, and develop Managers and staff to build high-performing teams and create a strong teaming culture

Lead engagement economics i.e. scope, budgeting, resourcing, and proactively manage risks, deadlines, and priorities

Support business development through proposals, pursuits, account planning, and relationship expansion

Contribute to national initiatives e.g., recruiting, learning and tax technology adoption

Skills and attributes for success

Strong people leadership with a demonstrated ability to coach, develop, and retain high-performing teams

Confident communicator who can influence across levels and collaborate effectively across geographies and service lines

Proven ability to build and sustain senior client relationships and translate technical work into practical business outcomes

Strong commercial mindset and interest in growth, market development, and account expansion

Deep technical knowledge in U.S. corporate and partnership taxation and the ability to resolve complex issues with sound judgment

Ability to synthesize technical guidance into clear recommendations, supported by strong writing skills

Excellent project management skills with the ability to prioritize and deliver across multiple engagements and deadlines

Strong focus on quality, risk management, and consistent delivery excellence

To qualify for the role, you must have

An undergraduate degree in a related field

Significant progressive U.S. tax experience, typically 8 or more years, with a strong foundation in U.S. corporate federal and state income tax compliance, and or partnership compliance, including review leadership and issue resolution

A US CPA designation

Demonstrated experience leading teams, managing engagement economics, and delivering through others