Security Engineer

About this role

Cognition is seeking a Security Engineer to design and defend the security infrastructure for Devin (an AI software engineer) and Windsurf (an AI-native IDE). You'll own sandboxing, product security, detection systems, and incident response for tools that execute untrusted code and handle sensitive customer credentials at scale.

What you'll do

• Design and harden sandboxing, isolation, and runtime controls for safe code execution in AI agents
• Lead threat modeling and secure design reviews across products and infrastructure
• Build internal security tooling for secrets management, identity, access controls, and dependency security
• Develop detection pipelines and lead incident response efforts end-to-end
• Collaborate with go-to-market and legal teams on compliance and customer trust initiatives
• Own vulnerability management and security improvements across the platform

What they're looking for

• Product and infrastructure security
• Sandbox and container security (Kubernetes, cloud platforms)
• Cloud security (AWS, GCP, or Azure)
• Web application security
• Software engineering (Python, Rust, Go)
• Threat modeling and adversarial thinking
• Incident response and detection systems
• Experience with AI or developer tools

Benefits

• Base salary $260,000–$300,000 plus significant early-stage equity
• Fully paid medical, dental, and vision insurance for employee and dependents
• 401(k) with company match
• On-site perks including private chef, snacks, and other amenities