Metricool is seeking a Senior Security Engineer to own application, cloud and AI security across our Java/JEE stack and AWS infra. You will harden Spring Security, conduct threat modeling for AI features, and drive ISO 27001 and SOC 2 compliance efforts while integrating security into CI/CD. You will work 100% remotely with a high-growth international B2B SaaS team, collaborating with developers and leads to embed security from the outset and enable secure AI adoption.