- Name: Gareth Oxtoby
- Job Title: Consulting Actuary
- Company: WTW
- Fields of Work: Consultancy
- University: Warwick
- Degree: Mathematics
There are many job roles you can pursue as an actuary; Learn more about what it’s like being a Consulting Actuary at Willis Towers Watson…
I joined Willis Towers Watson directly from University in 1990. I qualified as an actuary in 1994 and was made a partner in the former Watson Wyatt business in 2002.
I am a pensions actuary advising a range of clients with pension liabilities from £10 million to c. £15 billion. My previous roles have included acting as office leader for a team of close to 100 people, including over 30 student actuaries and a similar number of qualified actuaries.
I did a mathematics degree at Warwick University and at the start of my third year had no clear idea what career I wanted to follow. I knew I wanted to do something in the financial sector, that was more practical than much of my degree course, and that paid reasonably well. Actuarial consultancy seemed to tick those boxes, whilst providing a variety of challenging work and a highly-regarded professional qualification. I have found it be to an immensely rewarding career choice.
I am lucky in that I can walk to the Reigate office from my home, and I typically get to the office between 8 and 8.30 am. As a consultant my workload is very much dependent on what my clients ask me to do. If I’m not out of the office at meetings with clients, my typical day in the office invariably involves juggling and reprioritising a number of different tasks and requests each day in order to deliver to client requirements. Good time and project management is essential.
I rely on my colleagues to do much of the ‘heavy lifting’ for me, such as data analysis, detailed calculations and initial drafting of client communications. However a typical day’s client work might involve:
I like to leave the office by 6.30 pm in order to see my son before his bedtime. Each day is different and I cannot say for sure what I will be doing tomorrow.
I work with a great team advising some of the biggest and most prestigious companies in the UK, and their pension scheme trustees, on their pensions issues. Willis Towers Watson has an enviable client base and our team here in Reigate advises many of the UK’s largest pension schemes. I’ve also been able to change my role over time; having previously acted as office leader for five years, I recently decided to return to 100% client consulting, and as a result have been able to take on some new appointments, bringing new challenges and opportunities.
There is loads of variety – I advise small schemes and large schemes, and in some cases I am advising the trustees whilst in others I advise the sponsoring employer. Most of all though I enjoy working with talented colleagues, and we have fun too!
I believe that there will be clients with significant, challenging pensions issues for many years to come. I aspire to continue to provide those clients with the high levels of service they rightly expect. There are opportunities to work with market thought leaders on schemes setting the pensions agenda – so there is lots of scope for personal development.
As a senior member of the Willis Towers Watson team I also see myself as having responsibility for the career aspirations of my junior colleagues. It’s important to me that I contribute to an interesting, challenging, rewarding (and enjoyable) environment for junior actuaries to achieve their long term goals here at Willis Towers Watson.
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3 August 2026