What were some of david hilberts occupations?

David Hilbert was a prominent German mathematician known primarily for his work in foundational mathematics, mathematical logic, and geometry. He held a professorship at the University of Göttingen, where he made significant contributions to various fields, including algebra, number theory, and mathematical physics. Additionally, Hilbert played a crucial role in the development of formalism in mathematics and is famous for his influential Hilbert's problems, posed in 1900.