Security Lead - m/f/d

Help Us Change the Way the World WorksBuild something that matters.Langdock exists to change the way the world works, bridging the gap between what technology can do and what people actually do with it. We bring all leading AI models into one secure, model-agnostic platform and make them usable across entire organizations. Over 10,000 companies use our platform every day, from fast-growing startups to some of Europe's largest enterprises. Their employees open Langdock to draft strategies, analyze documents, or automate workflows - helping them to work smarter, think more creatively, and reach their full potential.About the RoleWe’re hiring a hands-on Security Lead to strengthen the security of Langdock’s product, infrastructure, and internal systems.Your primary focus will be application and infrastructure security. You’ll work closely with our CTO and engineering teams to identify risks, assess our defenses, and drive practical improvements. You’ll coordinate penetration tests, triage incoming vulnerability reports, and make sure findings turn into lasting fixes. You should be comfortable getting into technical details, challenging assumptions, and helping engineers choose the right controls.You’ll also own the security of our internal IT environment, including identity, access, and device security. We’re looking for someone who builds reliable, automated processes and can judge whether our protections are effective.Alongside this technical work, you’ll help explain our security posture to customers and support our compliance efforts. The foundation of this role is making Langdock secure; audits and customer assessments should reflect that work.What You Will DoThe role's responsibility will span over multiple fields, which are:Application securityCoordinate penetration tests end to end. Define scope with engineering and external testing partners, support testing, assess findings, and follow remediation through to verification.Own vulnerability intake and triage. Mo