Senior Indirect Tax Manager

About Us:

Proofpoint is a global leader in human- and agent-centric cybersecurity. We protect how people, data, and AI agents connect across email, cloud, and collaboration tools. Over 80 of the Fortune 100, 10,000 large enterprises, and millions of smaller organizations trust Proofpoint to stop threats, prevent data loss, and build resilience across their people and AI workflows. Our mission is simple: safeguard the digital world and empower people to work securely and confidently.

Join us in our pursuit to defend data and protect people.

How We Work:

At Proofpoint you’ll be part of a global team that breaks barriers to redefine cybersecurity guided by our BRAVE core values:
Bold in how we dream and innovate

Responsive to feedback, challenges and opportunities

Accountable for results and best in class outcomes

Visionary in future focused problem-solving

Exceptional in execution and impact

About the Role We are seeking an experienced Senior Indirect Tax Manager to lead our global indirect tax function. This role will have primary responsibility for U.S. sales and use tax compliance and planning, while also overseeing foreign VAT/GST compliance across multiple jurisdictions. The company’s revenue is predominantly generated in the United States, making U.S. sales tax a core focus of this position, with expanding international operations requiring strong VAT oversight and coordination with external advisors.

This role will partner closely with Finance, Accounting, Legal, and external service providers to ensure compliance, manage risk, and support business growth.

Key Responsibilities:

U.S. Sales & Use Tax Own the end-to-end U.S. sales and use tax function, including nexus analysis, taxability determinations, registrations, filings, and payments

Manage sales tax compliance across states and local jurisdictions, including exemption certificates and resale documentation

Support audits by state and local tax authorities and manage responses, settlements, and documentation

Advise the business on sales tax implications of new products, pricing models, go-to-market strategies, and system changes

Monitor and interpret changes in U.S. indirect tax laws and assess impact on the business

International VAT / GSTOversee foreign VAT/GST compliance in multiple jurisdictions (including EMEA and other regions, as applicable)
Coordinate with external advisors on VAT registrations, returns, audits, and advisory matters

Review VAT positions related to cross-border transactions, intercompany arrangements, and digital services

Support VAT considerations in acquisitions, integrations, and business expansions

Process, Systems & Controls Partner with Accounting and IT on indirect tax processes within ERP and billing systems

Drive process improvements, automation, and scalability of indirect tax compliance

Support internal controls, SOX requirements, and documentation related to indirect taxes

Cross-Functional Support Collaborate with Accounting on monthly/quarterly close matters related to indirect taxes

Support Legal and Procurement on contract review and indirect tax considerations

Provide clear, practical guidance to non-tax stakeholders across the organization

Qualifications:

Required Bachelor’s degree in Accounting, Finance, Tax, or a related field5–10+ years of relevant indirect tax experience (level dependent)
Strong hands-on experience with U.S. sales and use tax Working knowledge of VAT/GST compliance in multiple foreign jurisdictions

Experience managing indirect tax audits and interacting with tax authorities

Ability to operate independently in a fast-paced, growing environment

Preferred CPA, JD, or MST Experience in technology, SaaS, or digital services businesses

Experience working with third-party compliance providers and tax…