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Sr Manager, Tax

Masimo Corporation
United States, California, Irvine
52 Discovery (Show on map)
Oct 23, 2025

Job Summary:

The Senior Manager will play a critical role in managing the Company's tax compliance and income tax provision function. While primary focusing on federal, state and local tax matters, this position will have broad exposure to all areas of taxes, and be involved in planning projects to support the rapid growth of the Company. The ideal candidate should demonstrate a history of relevant work experience with strong technical and communication skills, ability to manage projects and work cross-functionally to achieve outstanding results.

Duties & Responsibilities:

* Manage the preparation and review of the annual and quarterly income tax provision calculation and all relevant SEC financial statement disclosures;
* Manage the preparation and review the Company's quarterly effective tax rate forecast, data analytics and modeling;
* Manage the process of identifying, analyzing, and documenting uncertain tax positions;
* Manage the Company's federal, state and local tax compliance, including leading the coordination of internal teams and third party advisors to ensure timely and accurate filing of the required compliance;
* Prepare and/or review the quarterly estimated tax payments and extensions;
* Manage tax audits including preparing responses to IDRs and issue management;
* Perform tax research, proactively monitor legislative change, analyze and communicate the related impact to the Company;
* Participate in tax planning projects to support business expansion, acquisitions, and integration planning;
* Effectively collaborate cross-functionally within the organization;
* Drive continuous improvements of process and procedures via the use of technology solutions; and
* Maintain and refine tax policies and procedures to ensure compliance with Sarbanes Oxley Act requirements.

Desired skills and Experience:

* 8+ years of related corporate tax experience in a major public accounting firm and/or in industry;
* In-depth knowledge and experience in US GAAP and tax accounting (ASC 740);
* Strong technical and analytical skills with a solution oriented mindset;
* Ability to conduct research using various resources including BNA, RIA and effectively communicate results;
* Must be detail oriented and have ability to multi-task;
* Strong organization and project management skills;
* Effective written and verbal communication skills;
* Strong proficiency in Microsoft Office (Excel, Word, Power Point) is required;
* Experience with OneSource provision software and Oracle ERP system a plus.

Education:
* Bachelor's degree in Accounting or related major is required;
* CPA and/or Master's degree in Taxation is highly desirable.

Physical requirements/Work Environment

This position primarily works in an office environment. It requires frequent sitting, standing and walking. Daily use of a computer and other computing and digital devices is required. May stand for extended periods when facilitating meetings or walking in the facilities. Some local travel is necessary, so the ability to operate a motor vehicle and maintain a valid Driver's license is required.

The physical demands of the position described herein are essential functions of the job and employees must be able to successfully perform these tasks for extended periods. Reasonable accommodations may be made for those individuals with real or perceived disabilities to perform the essential functions of the job described.

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