Pullman studied at the Sorbonne, then spent the Second World War as a French Army officer in Africa and the Middle East. Returning to Paris in 1946, he completed the Licence-es-Sciences in 1946 and the Docteur-es-Science in 1948. From 1946 to 1954, he worked at the Centre National de la Recherche Scientifique (CNRS).
Pullman studied at the Sorbonne, then served as a French Army officer in Africa and the Middle East during World War II. Returning to Paris in 1946, he earned his Licence-es-Sciences in 1946 and Docteur-es-Science in 1948. From 1946 to 1954, he worked at the Centre National de la Recherche Scientifique (CNRS).