Staff Security Researcher

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Staff Security Researcher based in France. This role is designed for a hands-on offensive security researcher who can turn advanced vulnerability and malware research into production-ready detection capabilities. You will investigate emerging threats across web applications, APIs, cloud-native environments, and AI-powered systems, translating discoveries into accurate security checks with low false-positive rates. The position combines deep technical research with practical engineering, from exploit proof-of-concepts to detection rules, evaluation frameworks, and attack-chain methodologies. You will also contribute to research standards, security tooling, and the broader application security community through publications and technical contributions. Working across engineering, product, AI/ML, and infrastructure teams, you will help ensure research moves efficiently from discovery to production. The role offers a high degree of ownership in a fast-evolving security environment where technical curiosity and measurable detection quality are highly valued.