Global Mobility Tax - Senior Manager
Galaxy US Opco • Boston, Massachusetts • Full Time • $117,800–$195,000 / year
Posted on Wed, Nov 11, 2026
Company Description
Join the leader in global work. Vialto helps leading organizations identify, develop, and execute their workforce priorities with confidence. Our practice areas include global tax, immigration, rewards, advisory and Vialto private and our team is the gold standard in navigating the complexities of cross-border compliance, and workforce strategies. We look for people our clients and assignees can count on to thoughtfully deliver clear solutions to complex problems.
To be the best in the business, we cultivate a dynamic, highly collaborative culture that fuels the growth of our people. We invite you to inquire boldly, learn deeply, and grow endlessly with us. You’ll work alongside recognized experts, shaping people-first, technology-driven solutions that drive the future of work. We help our clients achieve their goals and imagine new possibilities. And we can do the same for you. Whatever your aspirations, Vialto can help you find your way.
Job Description
In this position, your role is essential in upholding compliance with tax regulations and optimizing tax processes for employees on international assignments. This position is key in handling the tax consequences of global mobility and facilitating a smooth transition for employees across different countries. Your main objective is to reduce tax-related risks and costs, while ensuring that both the organization and its employees adhere to relevant tax laws.
Responsibilities for this position include but are not limited to:
- Accurately prepare, review, and file tax returns and related deliverables for globally mobile employees within designated deadlines.
- Offer specialized advice and strategic recommendations to internal teams regarding tax planning, withholding responsibilities, and social security contributions.
- Work in tandem with finance and HR departments to ensure precise calculation and reporting of payroll taxes and social security contributions.
- Offer specialized tax advice on assignment structures, leveraging tax treaties, and identifying tax-efficient benefits.
- Educate and counsel employees on their tax responsibilities and the potential implications of international assignments.
- Provide guidance on tax equalization and protection policies to employees, ensuring clear understanding and compliance.
- Analyze employee compensation and payroll data to accurately calculate tax liabilities and identify potential benefits.
- Prepare supporting applications and documentation to optimize employees’ tax positions, including comprehensive data analysis and communication with assignees.
- Diligently maintain detailed tax records and documentation for accuracy and audit-readiness.
- Stay informed on the latest developments in international tax laws and regulations.
- Compile and present tax reports to management, auditors, and tax authorities, highlighting key findings and recommendations.
- Gain a broad understanding of other service lines within the business to identify cross-functional issues and collaborate with Tax SMEs for integrated solutions.
- Conduct in-depth research on country-specific tax issues, particularly in areas where the organization operates.
- Act as the primary point of contact for clients with employees on business trips, offering exceptional service and support.
- Regularly communicate with clients to update them on the progress of trip assessments, address concerns and ensure client satisfaction.
- Responsible for the financial management of the engagement (this includes billings, collection, metrics & KPIs tracking).
- Collaborate with clients to implement Global Mobility Tax strategies minimizing liabilities for both the company and the employee.
- Recognize and actively seek out fresh business prospects within the existing client base, gained through a deep understanding of their changing requirements.
- Work to expand the client portfolio and nurture existing client relationships to drive revenue growth.
- Analyze market trends and competitive landscape to identify potential growth areas and opportunities.
Additional Information
- Full-time
- Location- Boston
- This is a hybrid position. 3 days in office.
- Compensation: $117,800 - $195,000.
We are an equal opportunity employer that does not discriminate on the basis of any legally protected status.
Please note, AI is used as part of the application process.
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What the data says about this job
- Advertised pay for Tax Senior Manager: a median of $176,000 across 1,195 priced postings. This posting advertises $117,800 to $195,000, 11% below that median. Explore the market
Measured from employers' own postings and public filings. How we measure