Senior Manager, Tax Compliance

MARI•,

3d•$160,000 - $185,000•Hybrid

About The Position

We are seeking a Senior Manager, Tax Compliance to own MARI's direct tax compliance and provision function at a critical stage of the company's global growth. This is a high-impact, high-visibility role within a lean global tax function for a PE-backed multinational organization with a complex, multi-entity structure. You will sit within the Global Tax Function, reporting directly to the Director of Tax, and working alongside external advisors across federal, state, and international compliance, provision, and reporting. As the primary owner of MARI's direct tax compliance workstream, you will manage the compliance calendar end-to-end, oversee the consolidated tax provision engagement, and drive cross-functional tax coordination across Finance, Legal, FP&A, and Operations. This is a hands-on role where you will leverage technology and AI to scale direct tax processes, identify and implement process improvements, and ensure accuracy and timeliness across all filings and reporting. In this role, you will exercise independent judgment across the day-to-day execution of the tax function — owning process, coordinating advisors, and surfacing issues with a well-formed point of view. You are expected to bring thoughtful business recommendations on tax positions and strategy, working closely with the Director, Tax to align on approach and ensure the right outcomes for the business.

Requirements

8–12 years of progressive tax experience
Exposure to cross-border and international tax matters
ASC 740 / tax provision competency — you can independently review and assess detailed tax provision workpapers
Solid understanding of GILTI, FDII, BEAT, and Subpart F mechanics
CbCR and transfer pricing documentation experience

Nice To Haves

Partnership tax exposure — Subpart K, §704(b)/(c) allocations, or PE fund / Top Partnership compliance experience
Experience leveraging tax technology and AI-enabled tools to improve compliance and reporting processes
Experience managing external advisor relationships, including coordinating deliverables, timelines, and quality review
Hands-on Pillar Two / GloBE experience — you have calculated GloBE ETRs, applied safe harbour tests, or implemented a Pillar Two tool

Responsibilities

Own the consolidated tax provision and partnership compliance engagement end-to-end — coordinating with external advisors, review workpapers, and ensure quality and accuracy before submission to Tax Director for final signoff.
Own the compliance calendar: coordinate all federal, state, and international filing obligations with external advisors, flag risks early, and proactively communicate timelines and status to the Director of Tax.
Oversee US federal and state withholding tax obligations, including treaty positions and compliance reporting; surface issues with a clear recommended position and work through material determinations in close partnership with the Director of Tax.
Manage international tax matters including Subpart F, GILTI, FDII, BEAT, and other US international tax implications across MARI's global operations in conjunction with external advisors. Providing clear, business-grounded recommendation to the Director of Tax.
Coordinate Pillar Two implementation with external advisors; own data aggregation, review, and project management.
Lead transfer pricing documentation: own the process and timeline for Master File and Local File preparation, coordinating with external advisors and ensuring deliverables are complete, accurate, and submitted on schedule.
Own the strategy and execution for leveraging technology and AI across direct tax — including compliance, provision, and reporting. Identify where the function should be more efficient, make the case for it, and drive the implementation.
Own the preparation of responses to federal, state, and international tax authority examinations — coordinate with external advisors.
Drive cross-functional collaboration with Finance, Legal, FP&A, and Operations on direct tax matters impacting the business.