R&D Tax Senior Manager

At S&W, we help our clients thrive by simplifying the complex, illuminating new paths, and shaping solutions that make a difference. As one of the UK’s top 10 fastest-growing accountancy firms, we have been a trusted partner since 1881—helping businesses and individuals meet challenges and seize opportunities across generations. Built on expertise and driven by ambition, we provide a comprehensive range of services, including tax and accountancy, advisory and assurance, corporate finance, and restructuring. We are defined by our purpose—to help navigate challenges, unlock potential, and achieve the extraordinary. What will you be doing? We are seeking a high performing R&D Tax Senior Manager to join our experienced team in London. In this role you will help to drive the R&D tax service line, building on our successful growth to date. Your primary responsibility will be to manage all matters relating to the management engagements in your portfolio, managing client teams to ensure that we deliver exceptional service to each client. You will also provide assistance to Directors and Partners in both client work and in the management of the team, including formal line managing, coaching, training and supporting operational processes. Through the relationships you build across your client portfolio, external network and other service lines, you will actively seek and identify new business opportunities, working with Partners and Directors to progress leads and win new work. You will be joining a fantastic work environment and a growing team with a strong entrepreneurial culture. You will benefit from working with industry-leading R&D tax specialists, as well as collaborating with established experts from other Business Tax service lines. The team has a strong learning and development framework in place, meaning you will benefit from a knowledge sharing environment, giving you the opportunity to broaden your skill set as well as strengthening your core technical skills. Your responsibilities will include: Support the team with the design and implementation of operational processes Manage and oversee R&D tax credit claims for a diverse portfolio of clients Review client operations and financial data to identify qualifying R&D activities and expenditure Lead client meetings to gather information and present findings Collaborate with cross-functional teams to ensure accurate documentation and support for claims Stay up-to-date with changes in R&D tax legislation and HMRC guidance Mentor and develop team members, taking a leading role in our learning and development programme Contribute to business development initiatives and build your own network Manage project timelines and budgets to ensure timely delivery of high-quality work To be successful in this role, you should have Relevant qualification and experience in an engineering or scientific discipline Experience providing R&D tax services, including preparation of R&D tax relief claims for both SMEs and large corporates, dealing with HMRC enquiries and providing structured R&D tax advice Technically capable tax adviser who is able to assist in complex client work and maintain excellent client relationships Proficiency in financial data analysis and modelling Demonstrable experience of managing people Appetite to grow business development skills Strong attention to detail and commitment to delivering high-quality work in a fast-paced environment As a colleague here at S&W you will have access to benefits that include Competitive salary Private medical insurance Life assurance Pension contribution Hybrid working model (role dependent) Generous holiday package Option to purchase additional holiday Shared parental leave Fully funded training towards professional qualifications Cycle to work scheme Season ticket loan Eye care support