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EY UK

Senior Manager, International Tax and Transaction Services, Financial Services, UK Wide

Location:  Southampton - Grosvenor House
Location flexibility:  1 office day / week
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Job Description

At EY, we’re all in to shape your future with confidence.

We’ll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go.

Join EY and help to build a better working world.

The opportunity

EY Tax offers the opportunity to build a career in a collaborative, ambitious environment, working with clients on complex and high-profile tax matters. You’ll combine technical expertise with commercial insight, develop your leadership capabilities and have the opportunity to shape your career while making a meaningful impact for clients and colleagues.

Our Financial Services International Tax and Transaction Services (FS ITTS) team has ambitious growth plans, and we’re looking for an experienced Senior Manager to join us.

You’ll work with a diverse portfolio of clients, from growing inbound businesses to large multinational organisations, advising on complex international tax matters across Banking, Insurance and Wealth & Asset Management.

The breadth of the team provides opportunities to work across financial services or deepen your expertise within a particular sector, while taking a leading role in developing client relationships, delivering complex engagements and contributing to the continued growth of the practice.

Your key responsibilities

As a Senior Manager, you’ll take a leading role in our client relationships, engagements and people development. You’ll be responsible for combining strong technical expertise with commercial insight to deliver practical solutions for our clients.

You’ll:

  • Build, develop and maintain strong client relationships, delivering exceptional client service
  • Lead the successful delivery of complex international tax projects, ensuring technical excellence and a practical, commercially focused approach
  • Identify and drive new opportunities with existing and prospective clients, contributing to proposals and business development activity
  • Bring insights and experience from across engagements, technical training and knowledge-sharing to enhance client solutions
  • Develop strong external networks across the Banking, Insurance and Wealth & Asset Management markets
  • Build effective relationships across EY, connecting clients and colleagues with the right expertise
  • Lead, coach and develop junior colleagues through effective delegation, feedback and on-the-job development
  • Contribute to the growth, development and strategic priorities of the FS ITTS practice

Skills and attributes for success

To succeed in this role, you’ll bring:

  • Strong international tax advisory and technical expertise
  • A client-focused mindset with strong strategic and commercial awareness
  • The ability to build credibility and trusted relationships with clients and senior stakeholders
  • Excellent written and verbal communication skills
  • Strong leadership, coaching and people development capabilities
  • A proactive, collaborative and flexible approach
  • The confidence to lead complex engagements and manage competing priorities
  • A commitment to maintaining and developing your technical and industry expertise

To qualify for the role, you should have

  • Significant experience as a tax practitioner, with strong expertise in international tax
  • Experience reviewing complex tax work and providing technical guidance to others
  • Experience advising financial services clients
  • Experience managing client relationships and delivering tax advisory engagements
  • Experience coaching and developing junior team members

A relevant professional qualification such as ATT, ACA, CA or CTA, or equivalent breadth of knowledge through another professional qualification such as law, would be preferred.

Ideally, you’ll also have

  • Strong project management skills, including managing multiple priorities, deadlines and engagement budgets
  • Experience identifying and developing new client opportunities
  • Strong networks or sector expertise within Banking, Insurance and/or Wealth & Asset Management
  • Experience leading and developing high-performing teams

What we offer you

At EY, we’ll support you in developing future-focused skills and provide opportunities to gain valuable experience through challenging and varied work.

You’ll be empowered to build your career in a flexible environment and be part of diverse, inclusive and globally connected teams.

You’ll have opportunities to:

  • Lead complex and high-profile international tax engagements
  • Strengthen your technical, commercial and leadership capabilities
  • Build senior client relationships and expand your professional network
  • Deepen your financial services sector expertise
  • Develop and coach talented colleagues
  • Play an active role in the growth and future direction of the FS ITTS practice

Are you ready to shape your future with confidence? Apply today.

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

EY | Building a better working world

EY is building a better working world by creating new value for clients, people, society and the planet, while building trust in capital markets.

Enabled by data, AI and advanced technology, EY teams help clients shape the future with confidence and develop answers for the most pressing issues of today and tomorrow.

EY teams work across a full spectrum of services in assurance, consulting, tax, strategy and transactions. Fueled by sector insights, a globally connected, multi-disciplinary network and diverse ecosystem partners, EY teams can provide services in more than 150 countries and territories.

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Working at EY UK

1 office day / week 2 office days / week

A little flex time

Company benefits

27 days annual leave + bank holidays
Adoption leave
Annual bonus
Buddy scheme
Buy or sell annual leave
Car allowance
Career and family coaching
Charity donation scheme
Coaching
Critical Illness Insurance
Cycle to work scheme
Dental coverage
Discretionary sick pay
Electric Car Salary Sacrifice
Employee discounts
Employee recognition scheme
Enhanced maternity leave
Enhanced paternity leave
Enhanced pension match/contribution
Eye Care Support – (free eyesight testing)
Financial advice
Health assessment
Health insurance
In house training
Income protection
Joining bonus
L&D budget
Learning platform
Life assurance
Lunch and learns
Menopause support
Mental health pathway
Mentoring
Personal development days
Physiotherapy
Professional subscriptions
Referral bonus
Shared parental leave
Special leave
Sports teams
Study support
Studying sabbaticals
Surrogacy leave
Wellbeing allowance – £500
Wellbeing incentive programme
Carer’s leave – Special Leave (4 weeks paid)
Collaboration spaces
Private booths
Modern office

Awards & Accreditations

2nd - Most Inclusive Company

2nd - Most Inclusive Company

Flexa awards 2026
Best Career Progression

Top 10 - Best Career Progression

Flexa awards 2026
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Company employees:

400000

Gender diversity (m:f):

52:48

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