Westminster Under School is a friendly and welcoming place to work, with a real sense of community. Staff members quickly become part of the rhythm of life, both inside and outside the classroom. Social events are regular and varied, with plenty of opportunities to socialise outside working hours. All are encouraged to embrace the School’s day-to-day activities, whether that be attending a concert or a sports fixture.

It is a particularly exciting and significant time to be joining Westminster. As part of Westminster Under School and Westminster School’s move to become fully co-educational, girls will be joining the Under School for the first time in 2026, at the 7+ and 11+ entry points, and a brand new pre-prep will open for boys and girls at the 4+ entry point. In 2028, girls will be joining at 13+ at Westminster School.

Maths holds a central place in the life of the School. Our pupils, who work well beyond their chronological age, take great pride in their achievements. Former pupils have represented the UK at the International Mathematical Olympiad; we consistently achieve more Primary Mathematics Challenge bonus golds than any other school; we appear regularly on the UKMT Team Maths Challenge podium; and, last year, two of our pupils placed second and fourth in the Junior Mathematical Olympiad.

The role
Westminster Under School is looking for a bright, caring and enthusiastic individual to teach Maths to Years 5 to 8. The successful candidate will plan and evaluate lessons and activities as required. They will assist with other areas aside from formal lessons, such as the regular tweaking of schemes, and helping with support clinics and the running of external competitions. The Teacher of Maths will be expected to cover classes for absent colleagues as directed by the Senior Management Team, and attend staff meetings, parents’ evenings and other meetings and school events, outside normal hours.

The ideal candidate will hold a degree or equivalent qualification, a Maths degree or similar is desirable and Qualified Teacher Status. They will ideally have taught up to Common Entrance level, and will possess a genuine passion for their subject and commitment to pupil wellbeing and development. The Teacher of Maths will be an excellent communicator who has the ability to motivate and support pupils with their studies. Organisational, administration and IT skills are integral to the role, as is the ability to work both independently and collaboratively as part of a team. The postholder will have a willingness to contribute beyond their teaching of Maths, acting as a form tutor to a group of pupils.

This is a full-time, permanent role starting in September 2026.