R&D Tax Senior Manager Big 4 Firm Glasgow £60,000 - £75,000 + Benefits & Hybrid WorkingAn exciting opportunity to join a leading Big 4 firm as a Senior Manager within its Innovation & Capital Incentives (ICI) practice, specialising in UK R&D tax incentives.This growing team works with innovative businesses across a wide range of sectors, supporting them to maximise R&D relief while navigating an increasingly complex HMRC landscape.With access to market-leading clients, multidisciplinary expertise, and clear progression opportunities, this role is ideal for an experienced R&D professional looking to step into a visible leadership position within a high-performing Big 4 team.As an R&D Tax Senior Manager, you will:

• Lead and manage a diverse portfolio of R&D clients, overseeing end-to-end delivery of UK R&D tax claims from scoping through to HMRC submission.
• Act as a trusted adviser to clients, building long-term relationships and providing clear, commercially focused technical advice on R&D incentives.
• Liaise directly with HMRC, managing enquiries, discussions, and negotiations where required.
• Supervise, coach, and develop junior team members, reviewing work, providing technical guidance, and fostering a collaborative team culture.

Why join this Firm?

• Be part of a market-leading Big 4 ICI practice with a strong pipeline of high-profile and innovative clients.
• Work in a flexible, hybrid environment, balancing office, home, and client site working.
• Access a comprehensive benefits package, including private medical cover, 24/7 virtual GP access, and up to six volunteering days per year.
• Benefit from structured career progression, continuous learning, and exposure to complex, high-value advisory work.

What you'll need to succeed:

• ACA / CA / ACCA / ATT / CTA qualified (or international equivalent), or a Tax Inspector with full technical training.
• Strong, demonstrable experience in UK R&D tax incentives, including claim preparation and HMRC submissions.
• Proven ability to manage multiple projects and client relationships simultaneously in a fast-paced environment.
• Strong analytical and numerical skills; experience in related areas such as Patent Box or Corporate Tax would be advantageous.

Want