Manager - International Social Security Tax - London

About EY Tax

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.

The Opportunity

We’re seeking an experienced Manager to join our London International Social Security (ISS) team. You’ll bring technical expertise and change management skills to deliver impactful communication and engagement strategies. If you’re creative, resilient, and passionate about supporting clients across sectors, this role is for you.

EY’s ISS practice is a leading global provider of social security services. Our London

team includes former social security administration staff, qualified accountants, and tax advisors with backgrounds in expatriate tax, immigration, and assignment management. We support global advisory and compliance work for individuals relocating to and from the UK, as well as between other countries worldwide.

Key Responsibilities

• 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

Skills and Attributes for Success

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

At EY, we’ll develop you with future-focused skills and equip you with world-class experiences. We’ll empower you in a flexible environment, and fuel you and your extraordinary talents in a diverse and inclusive culture of globally connected teams

• 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!

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