Research notes
Publicly listed in the Team Members section of the official FIA Formula 2 team page. Julien Rousseau currently serves as ART Grand Prix's FIA F2 number-two mechanic. An earlier LinkedIn post of his mentioned a hiring call from the French endurance racing team GRAFF Racing, which may indicate a connection to that team, but since the body of his LinkedIn profile could not be crawled, his earlier and full career history and education could not be confirmed. His LinkedIn headline clearly states he is ART Grand Prix's FIA F2 number-two mechanic, fully consistent with the ART F2 mechanic identity in this batch;
search results show one of his LinkedIn posts mentioning a GRAFF hiring call, indicating a connection to France's GRAFF Racing.