A leading Top 5 accountancy and advisory firm is seeking an ambitious Assistant Manager to join their growing Corporate & M&A Tax team . This is a fantastic chance to work on a wide range of tax advisory and compliance matters, supporting high-profile clients across sectors including technology, real estate, private equity, and financial services. You'll play a key role in managing client relationships, leading projects, and contributing to strategic tax advice on M&A transactions, restructures, and international expansion. Key Responsibilities Manage a varied client portfolio, ensuring high-quality delivery of corporate tax compliance and advisory services Lead on the preparation and review of corporate tax returns and supporting computations Provide transaction tax support, including due diligence, structuring, and post-deal integration Monitor tax developments and proactively advise clients on potential impacts and opportunities Work closely with senior stakeholders and Partners to support business development initiatives Mentor and support junior team members, contributing to their professional growth About you: Professionally qualified ACA and/or CTA Solid understanding of UK corporation tax, international tax principles, and M&A advisory work