In 2003, Le Tat Dat started working at Softtech Danang, one of the biggest IT companies in Danang, as a Technical Leader. In 2008, he moved to ITG-PhongPhu and became a system analyst. By 2011, he joined an IT company, called Elvizi, which targeted the American and Australian Market, where he worked as a Tech lead. He joined Est rouge in 2019 as an Android Mobile Lead. Having 17 years of rich experience in the IT field, he can cover a wide range of technologies and he is specialized in system software architecture. He is well-trusted by his team due to his strength and expertise in Android architecture with the latest technologies.