Paris is the primary hiring hub for French defence tech, with positions concentrated in the city and its inner suburbs. Many companies listed as "Paris" are technically based in Issy-les-Moulineaux, Montrouge, La Defence or other communes within the Ile-de-France region, all within easy reach by Metro or RER. Cybersecurity and AI account for a large share of open roles, led by companies like Harmattan AI (autonomous systems), Sekoia.io (cyber threat intelligence), Quarkslab (reverse engineering and software security) and HarfangLab (endpoint detection and response).






