Adecco is currently hiring a Senior Accountant - Tax & Internal Controls for a full-time, 12-month contract position in Ajax, ON (hybrid). This opportunity is ideal for a highly analytical and detail-oriented CPA with strong experience in corporate taxation, internal controls, and audit who thrives in a fast-paced, deadline-driven environment. As a Senior Accountant, you will be responsible for managing corporate tax processes, coordinating with internal and external stakeholders, supporting audits, and leading internal control initiatives. You will also oversee a Financial Analyst and contribute to continuous improvement across finance functions.