Manager - International Social Security Tax - London

The Opportunity

EY Tax is a market leader, renowned for delivering sustainable growth and empowering our people to shape their own careers. Our diverse, collaborative team advises on high-profile transactions, combining technical expertise, innovation and a genuine focus on continuous development. Join us to work on challenging, multi-country projects in a supportive, dynamic environment where your impact truly matters.

We are seeking an experienced Manager to join our London International Social Security (ISS) team. We're looking for someone who brings technical expertise and changes management skills to deliver high-impact communication and engagement strategies. If you're creative, resilient, and passionate about supporting clients across sectors, especially in International Social Security, this could be the ideal role for you.

The Team

EY’s ISS practice is the leading global provider of social security services. The London-based team includes ex-social security administration staff, qualified accountants, and tax advisors with backgrounds in expatriate tax, immigration, and assignment management.

The team supports a wide range of global advisory and compliance work involving individuals relocating to and from the UK, as well as between other country combinations around the world.

What You’ll Do

• Coordinate and manage ISS service delivery for multiple multinational clients

• Own the day-to-day delivery of core global ISS compliance services
• Act as the main point of contact for global clients and build long-term relationships with both corporate clients and assignees
• Manage and coordinate efforts across the London ISS team, our GDS back-office team, and the global EY network
• Monitor and manage account financials proactively
• Provide strategic guidance to help clients reduce/manage global social security liabilities
• Identify cross-selling opportunities within ISS and other People Advisory Services sub-service lines
• Offer technical advice regarding global social security compliance and benefits/healthcare obligations
• Liaise with government departments in the UK and internationally
• Draft client correspondence and lead ad hoc projects
• Coach and mentor junior team members to support their technical and professional development

About You

You’ll have:

• Strong coordination and organizational skills
• Meticulous attention to detail
• A proactive, self-motivated approach
• The ability to multi-task and problem-solve in a fast-paced environment
• Excellent communication skills (written, spoken, and listening)
• Experience managing stakeholder relationships across multiple levels
• Experience in a client-facing role within International Social Security, National Insurance Contributions (NIC), Assignment Management, or Expatriate Tax is highly beneficial.

What we Offer

• Global Exposure: Work with international clients and teams across EY’s global network.

• Career Progression: Develop new skills, take on leadership roles, and grow your career.
• Support & Coaching: Learn from industry experts and be mentored by senior leaders.
• Flexible Working: We support hybrid working and work-life balance. Two days in the office.
• Total Rewards Package: Competitive salary, benefits, and exclusive EY perks.
• Inclusive Culture: Work in an environment that celebrates diversity and authenticity.

At EY, belonging means more than just fitting in—it means thriving. Whoever you are, whatever your background, you are valued, supported, and empowered to be your best.

Ready to lead, inspire, and make an impact? Apply now!

What We Offer

• Global Exposure: Work with international clients and collaborate across EY’s global network.
• Career Progression: Lead high-impact projects and shape your professional journey.
• Support & Coaching: Learn from industry leaders and receive ongoing mentoring.
• Flexible Working: Hybrid model (minimum two days in the office) with a focus on work-life balance.
• Total Rewards: Competitive salary, comprehensive benefits, and exclusive EY perks.
• Inclusive Culture: A workplace where you belong, feel valued, and can thrive.

To help create the best possible experience during the recruitment process, please let us know if you require any disability-related adjustments or accommodations.

Ready to lead, inspire, and make an impact? Apply now.