After graduating, Nishen chose to dedicate himself fully to education and secured a teaching position at Harrow School — one of the UK’s most selective and internationally renowned institutions, whose alumni include world leaders, Nobel Laureates, and some of the most academically accomplished students globally. During his time there, he taught Mathematics, supported students with Special Educational Needs, and contributed to the curriculum design for the Advanced Level Design Engineering course.
Since 2021, Nishen has also been working as a professional tutor, teaching more than fifty students from KS3 to A Level in Maths and Physics, Chemistry at GCSE level, and engineering undergraduates up to second year. His experience spans a wide range of abilities and goals, from stretching high-achieving and gifted learners to providing structured, methodical support for students who need help building problem-solving skills.