A leading Top 10 accounting firm is continuing to invest heavily in its Employment Tax and GlobalMobility practice and is now seeking an experienced Global Mobility Tax Advisor to join its expanding team.This is a genuine growth hire, driven by team growth from increasing demand from multinational clients managing complex, cross-border workforces. The firm advises organisations operating across multiple jurisdictions and supports them on employment tax, social security, immigration coordination and global compliance.With an established international network spanning 50+ countries and a strong reputation in the Irish and European market, the firm offers the scale, technical depth and client access you would expect — without the bureaucracy that can slow progress elsewhere.The RoleYou will play a key advisory role within the Employment Tax & Global Mobility team, working closely with clients' tax, payroll, finance and HR stakeholders to address the tax implications of internationally mobile employees.The role combines technical advisory work, client-facing responsibility and commercial input, with exposure to complex global mobility programmes and high-quality multinational clients.Key ResponsibilitiesAdvise clients on employment tax, social security and personal tax issues arising from cross-border assignments and remote working.Support the design and implementation of global mobility and workforce tax strategies.Provide guidance on tax equalisation, tax protection and compliance frameworks.Manage the employment tax aspects of global mobility programmes across multiple jurisdictions.Identify and mitigate permanent establishment and payroll risk.Support the resolution of employment tax and international assignee-related disputes.Collaborate with legal, immigration and wider tax teams to deliver integrated solutions.Deliver technical training and thought leadership for clients and internal teams.Build strong, long-term client relationships and contribute to the continued growth of the practice.Career Progression & DevelopmentThis firm has a clear growth strategy for its Global Mobility and Employment Tax offering, creating strong opportunities for progression, increased responsibility and specialisation.You'll benefit from:Structured career development pathwaysExposure to international projects and secondment opportunitiesOngoing technical and leadership trainingDirect access to Partners and senior decision-makersThis is an excellent opportunity for a Global Mobility or Employment Tax professional looking to deepen their technical expertise, broaden their international exposure and progress their career within a highly regarded Top 10 firm.