Margaret Hamilton is an American computer scientist and software engineer best known for her work on the Apollo program. She led the team that developed the onboard flight software for the Apollo spacecraft, which played a crucial role in landing humans on the Moon during the 1969 Apollo 11 mission. Hamilton founded her own software company, Hamilton Technologies, and has been a strong advocate for the importance of software engineering. Her contributions have earned her numerous awards, including the Presidential Medal of Freedom in 2016, recognizing her pioneering work in the field of computer science.