Lee advocates for youth's valuable role in contributing to development across Asia, and is particularly interested in inclusive urban development and sustainable transport. He has designed and implemented youth-focused and youth-led activities in projects in these sectors in countries such as Mongolia, Tajikistan, Pakistan, Georgia and the Philippines. Before joining Youth for Asia, Lee worked on community-based development projects for international NGOs in the UK, Lao PDR, Viet Nam, Romania, and Kenya.