Senior Software Engineer (Security)

Join our Security team as a Senior Software Engineer, where you'll shape the direction of our security tooling and AppSec practices. Your work will involve hardening product design and development, breaking products to identify vulnerabilities, and building innovative security tools. You'll report to our Staff Software Engineer - Security and collaborate closely with product engineers, DevOps, and Fraud. Expect high autonomy, frequent collaboration, and a fast-paced environment.

• Contribuer à la direction technique de nos outils de sécurité et de nos pratiques AppSec, en dirigeant des initiatives de sécurité à fort impact.
• Participer à la conception et à l'évolution de notre architecture DevSecOps, en décidant comment la sécurité est intégrée tout au long du cycle de vie du développement logiciel.
• Identifier et mettre en œuvre de nouvelles façons d'utiliser l'IA pour automatiser et étendre notre travail de sécurité.
• 5+ years working in security (AppSec, DevSecOps, offensive security, or similar)
• Track record of leading security initiatives and mentoring or developing other engineers
• Experience designing and embedding security across CI/CD pipelines and the SDLC
• Experience leading threat modeling and secure design across engineering projects
• Comfortable writing and maintaining code (Python preferred)
• Professional offensive security experience, with a proven ability to find, chain, and exploit complex vulnerabilities in applications and infrastructure
• Hands-on cloud infrastructure or cloud security experience (AWS, Kubernetes)
• Strong communicator who can influence and drive security work across engineering, DevOps, and leadership
• Relevant security certifications (e.g., Burp Suite Certified Practitioner, KCSA, AWS SCS, or similar)
• Professional software development experience
• Published security research, CVEs, or conference talks
• Experience applying AI/LLMs to security or engineering workflows
• Open-source security tool development or contributions
• Mobile development or mobile security experience