Senior Manager - R&D Tax

Unity Advisory is a pure-play, experience-led CFO advisory firm providing integrated finance, commercial, tax and deals support. We are free from audit conflicts and AI-enabled by design, combining deep technical expertise with automation, analytics and AI built into the delivery of every engagement. We are building an alternative to traditional advisory firms, focused on clarity over complexity, outcomes over hours, and practical advice delivered at pace for CFOs making high-consequence decisions.

The Role

We’re looking for a commercially sharp, technically rigorous Senior Manager to join our fast-growing R&D tax practice. This role sits at the heart of claim delivery, owning the financial and tax-technical dimensions of every engagement, from cost identification and apportionment through to HMRC-ready computations and submissions.

You’ll lead the quantification of R&D expenditure across a varied portfolio of clients, from scaling tech companies to large enterprise groups, ensuring claims are robust, defensible, and fully optimised within the boundaries of HMRC guidance. Working closely with Partners and the Technology & Science team, you’ll bring analytical precision to complex cost structures and play a central role in shaping how we embed AI and automation into our costing and compliance workflows.

This is not a pure compliance role. You will be expected to think critically about how R&D tax costing is done today, challenge legacy methodologies, and actively build or improve AI-driven workflows that raise the bar on efficiency, accuracy, and client experience.

What You’ll Do

- Own the end-to-end financial and tax-technical delivery of R&D tax claims, including cost identification, apportionment, computation, CT600 adjustments, and HMRC submission.

- Analyse client cost bases to identify and quantify qualifying direct and indirect R&D expenditure under the merged RDEC scheme and the Enhanced R&D Intensive Support (ERIS) regime.

- Lead detailed cost rev...