Senior Software Development Engineer - Security - IDAM

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Senior Software Development Engineer role in Security - IDAM team at Criteo. The team builds authentication and access management foundations for internal R&D platforms and services, including browser-based and server-to-server authentication flows, identity lifecycle management, token exchange, and secure access for user and service accounts. Technologies include Active Directory, Kerberos, OIDC, and internal solutions. Responsibilities include end-to-end feature delivery, software design and development, production system operation focusing on availability, performance, observability, and security, CI/CD pipeline and infrastructure automation, system reliability improvements, collaboration with engineering and product teams, architecture contributions, and mentoring. Requirements include 5+ years in software engineering or related roles, strong development skills in Python, Java, C#, Go or similar, experience with backend services, REST APIs, distributed systems, Linux, networking fundamentals, Docker, Kubernetes, CI/CD, Terraform, monitoring tools like Prometheus, Grafana, ELK, Sentry, strong troubleshooting and problem-solving skills, and fluent English. The position is full-time, hybrid based in Paris, France. Benefits include hybrid work model, learning and career development programs, health and wellness support, inclusive team environment, competitive salary with performance rewards, and potential equity.