Complex sentence: After graduating, Leon joined Softek LLC in New Delhi and worked with them for two years till 1994, before moving to the United States to complete his Master's degree in computer science in 1996, specialising in computer graphics.
Split into simpler sentences: After graduating, Leon joined Softek LLC in New Delhi and worked with them for two years till 1994. He then moved to the United States to complete his Master's degree in computer science in 1996, specialising in computer graphics.