Senior Manager, Tax

ICON is a global healthcare intelligence and clinical research organisation united by a mission to bring new medicines and treatments to patients faster.

As a values-driven organisation, integrity, collaboration, agility, and inclusion are at the heart of how we work and interact with each other, customers, patients and suppliers.

Senior Tax Manager 

Dublin, Hybrid.

ICON plc is a world-leading healthcare intelligence and clinical research organisation. From molecule to medicine, we advance clinical research providing outsourced services to pharmaceutical, biotechnology, medical device and government and public health organisations.

With our patients at the centre of all that we do, we help to accelerate the development of drugs and devices that save lives and improve quality of life.

As a Senior Tax Manager, you will work on a broad range of complex domestic and cross-border tax matters across all of ICON’s global operations. You will be a key member of a highly motivated tax team based in ICON’s global headquarters in Dublin, providing strategic leadership and oversight of ICON’s global tax position while supporting business growth, compliance, and tax planning initiatives.

You will partner closely with senior finance leaders, external advisers, and business stakeholders to identify and implement tax-efficient solutions, manage risk, and ensure compliance across multiple jurisdictions.

The Role:

• Lead all tax matters across a portfolio of Irish and international entities, providing strategic guidance and oversight.
• Partner with senior finance teams and external advisers to ensure compliance with all tax filing and payment obligations while managing tax audits and controversy matters.
• Drive the identification, evaluation and implementation of tax planning opportunities aligned with ICON’s global business objectives.
• Act as a trusted advisor to business leaders on corporate tax, VAT, transfer pricing, withholding tax, and other international tax matters.
• Maintain strong relationships with local finance teams, shared service centres and external advisors across multiple jurisdictions.
• Monitor legislative and regulatory developments globally, assessing business impacts and driving implementation of required changes.
• Ensure accurate and timely quarterly and annual US GAAP tax reporting for allocated jurisdictions.
• Manage and co-ordinate key tax function processes.
• Support business expansion activities, restructurings, acquisitions and new entity set-ups from a tax perspective.
• Provide leadership and mentorship to tax professionals, helping to develop technical capability and drive high performance across the team.
• Champion process improvement initiatives, leveraging technology and best practices to enhance efficiency, controls and compliance.

To be successful in the role, you will ideally have:

• Significant experience within a Big 4 practice and/or a multinational PLC/MNC environment.
• Qualified Accountant and AITI Chartered Tax Adviser (CTA) with an excellent academic background.
• 8+ years of post-qualification experience in a dedicated tax role, with substantial international tax exposure.
• A commercially focused problem solver with deep technical expertise across corporate tax, indirect tax and international tax matters.
• Demonstrated experience advising senior stakeholders and supporting complex global business operations.
• Experience managing and mentoring tax professionals within a fast-paced multinational environment.
• Strong international corporate tax and VAT experience, with transfer pricing knowledge highly advantageous.
• A proven ability to build effective internal and external networks and influence decision making across functions.
• Excellent communication and stakeholder management skills, with the ability to translate complex tax issues into practical business solutions.
• Excellent computer skills; Oracle experience would be advantageous but is not essential.
• Bachelor’s Degree or higher.

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Employment with ICON is contingent upon having the legal right to work in the country where the role is based.

Rewards & Benefits

ICON offers a competitive and comprehensive total rewards package designed to support your health, wellbeing, and career development.

Benefits may include:

• Competitive base salary and performance related incentives
• Health and wellbeing programmes including medical, dental, and vision coverage where applicable
• Retirement and pension plans
• Life assurance and disability coverage
• Employee assistance programmes and wellbeing resources
• Learning and development opportunities through structured training and career pathways

Benefits may vary depending on role and location.

Visit our careers site to read more about the benefits ICON offers.

Inclusion and Accessibility

ICON is an equal opportunity employer. We are committed to building an inclusive and accessible workplace where everyone feels valued and supported.

If you require reasonable accommodations during the recruitment process, please let us know or submit a request here.

Are you a current ICON Employee? Please click here to apply