Senior Tax Product Specialist

Summary

The Senior Tax Product Specialist is an individual contributor role at the heart of the ONESOURCE Tax Provision product team. This position exists to bring deep, practitioner‑level tax accounting expertise directly into the product development process — ensuring that ONESOURCE reflects how corporate tax professionals actually work and what they truly need.

Your accounting and tax background is the foundation of this role. You will work closely with internal product, engineering, and data science teams as well as external customers and partners to develop, test, and validate product content, functionality, and AI‑powered capabilities for the tax provision domain.

• Develop and validate segment‑specific product content and functionality for ONESOURCE Tax Provision, drawing on firsthand expertise in corporate tax provision processes and best practices.
• Apply deep knowledge of ASC
  740, IFRS, deferred tax computations, rate reconciliation, and financial close workflows to assess product capabilities and identify improvement opportunities.
• Develop, test, and validate the application of generative AI and intelligent automation to tax provision workflows – including document understanding, automated reconciliation, anomaly detection, and AI‑assisted review.
• Provide strategic feedback to engineers and data scientists on AI feature performance, accuracy, and real‑world applicability.
• Lead the development of advanced use cases for tax professionals utilizing ONESOURCE and Thomson Reuters’ suite of AI‑powered products.
• Partner with product managers to contribute domain expertise to roadmap prioritization, requirement definition, and feature validation.
• Draft guidance materials, use case documentation, and adoption resources that help tax professionals understand and effectively use new product capabilities.

Engage directly with enterprise customers – including corporate tax directors, controllers, and Big Four advisors – as a credible domain expert. Represent ONESOURCE Tax Provision in customer advisory boards, enterprise client engagements, and industry events. Translate practitioner insights into actionable input for the product team and support product adoption by collaborating with Customer Success, Sales, and Support teams.

• Bachelor’s degree in Accounting, Finance, Taxation, or a related field is required.
• CPA or CMA designation is required, or actively in progress.
• Advanced degree (MST, MBA, or equivalent) is a strong plus.

• 5–7 years of professional experience in corporate tax, public accounting, or a tax technology environment with hands‑on responsibility for income tax provision.
• Deep, working knowledge of ASC
  740 and income tax provision processes.
• Experience with deferred tax computations, effective tax rate analysis, rate reconciliation, and uncertain tax positions.
• Familiarity with IFRS (IAS
  12) tax provision standards is preferred.
• Demonstrated ability to apply tax accounting best practices to assess software functionality and articulate high‑quality tax provision tool requirements.
• Prior use of enterprise tax provision software such as ONESOURCE, Corptax, Longview, or CCHTagetik is strongly preferred.

• Proven experience working with or evaluating generative AI tools in a professional context.
• Comfortable collaborating with engineering and data science teams to test AI‑powered features and provide practitioner‑grounded feedback.
• Aware of responsible AI principles, including auditability, explainability, and appropriate use in regulated environments.
• Proficiency with Microsoft Office Suite and Google Workspace; experience with enterprise tax research tools is a plus.

• Strong written and verbal communication skills, with the ability to translate complex tax concepts into clear product guidance and customer‑facing materials.
• Experience drafting guidance documents, use case materials, or training content for professional audiences.
• Proven ability to work effectively across internal teams in a fast‑paced, collaborative environment.