Dr Sommer is an experienced school leader within British education, both in the UK and internationally. Prior to becoming Headmaster of the BSP, he was the Head of the British School of The Netherlands, where he introduced the IB diploma programme to run along side A Levels in the Sixth Form. Before then, Dr Sommer was the Deputy Head of Sutton Valence School in Kent. Having started his career in industry he spent almost a decade teaching at Rugby School. He holds The National Professional Qualification for Headship and trained as an ISI inspector.