Global Mobility Personal Income Tax Solutions Expert

Company:

Mercer

Description:

We are looking for a Global Mobility Personal Income Tax Solutions Expert with strong client advisory experience to join our Global Mobility Tax Research team at Mercer Services in Warsaw (al. Jerozolimskie 98, Nimbus office). This hybrid role requires working onsite at least three days a week.

In this role, you will leverage your deep knowledge of Personal Income Tax structures and regulations across multiple countries to provide expert advice and tailored solutions to our global corporate clients. You will work closely with international markets, understanding the nuances of PIT in different jurisdictions, and help design innovative tax solutions that meet our clients’ complex needs.

What you will do:

• Advise global clients on Personal Income Tax matters, delivering practical, compliant solutions tailored to their international workforce.
• Transform client needs into innovative Tax and Economic Research products, collaborating closely with the Global Mobility Product Owner and cross-functional teams.
• Translate complex tax regulations and concepts into user-friendly tools, calculators, and insightful reports.
• Deliver accurate tax and cost projections across multiple jurisdictions, supporting seamless implementation of new tax laws.
• Optimize and enhance existing tools such as Excel models and calculators to improve reporting and data analysis.
• Mentor junior colleagues, contributing to the successful delivery of multiple high-quality products annually.
• Identify and drive continuous improvement opportunities to streamline processes and elevate client service within the Global Mobility and Tax teams.
• Ensure exceptional client satisfaction through proactive communication, expert guidance, and a commitment to excellence.

What we expect from you:

• Minimum 3 years of hands-on experience in Personal Income Tax advisory, global mobility tax, payroll, or related fields within an international or local environment.
• Bachelor’s or Master’s degree in Economics, Law, Taxation, or a related discipline.
• Strong knowledge of Personal Income Tax with a willingness to learn about different jurisdictions.
• Relevant professional qualifications in tax, payroll, or accounting are a plus.
• Excellent analytical and problem-solving skills with attention to detail.
• Experience managing projects and collaborating with diverse teams and stakeholders.
• Fluent English communication skills, both written and spoken.
• Proficiency in MS Office, especially Excel, with a readiness to learn new tools.

What will make you stand out:

• Background in providing global PIT advisory services, including drafting legal tax advice for clients.

Why join Mercer Services?

• We support your growth with professional development opportunities, challenging projects, and supportive leadership.
• Join a vibrant, inclusive culture where you collaborate with talented colleagues to create impactful solutions for clients and communities.
• Benefit from our global scale, offering diverse career paths, competitive benefits, and rewards to support your well-being.

If you are ready to take your career to the next level and make a difference in global mobility tax advisory, please send your CV in English.

Mercer is a business of Marsh (NYSE: MRSH), a global leader in risk, reinsurance and capital, people and investments, and management consulting, advising clients in 130 countries. With annual revenue of over $27 billion and more than 95,000 colleagues, Marsh helps build the confidence to thrive through the power of perspective. For more information about Mercer, visit mercer.com, or follow us on LinkedIn and X.

Marsh is committed to creating a diverse, inclusive and flexible work environment. We aim to attract and retain the best people and embrace diversity of age, background, disability, ethnic origin, family duties, gender orientation or expression, marital status, nationality, parental status, personal or social status, political affiliation, race, religion and beliefs, sex/gender, sexual orientation or expression, skin color, or any other characteristic protected by applicable law.

Marsh is committed to hybrid work, which includes the flexibility of working remotely and the collaboration, connections and professional development benefits of working together in the office. All Marsh colleagues are expected to be in their local office or working onsite with clients at least three days per week. Office-based teams will identify at least one “anchor day” per week on which their full team will be together in person.