Senior AI Security Engineer

• As a Senior AI Security Engineer within Product Security, you will work as an embedded partner to engineering, translating security architecture into production controls, evaluations, monitoring, and reusable patterns for Function’s AI systems
• Implement security controls for AI agents, tools, memory, and data access
• Build agent identity, authorization, scoped credentials, least privilege permissions, and approval requirements
• Apply secure patterns for context retrieval, member data isolation, and agent memory
• Create evaluations for prompt injection, sensitive data disclosure, unsafe tool use, memory poisoning, and unauthorized actions
• Turn discovered vulnerabilities into automated regression tests and release gates
• Implement runtime safeguards for tool calls, network access, data egress, and resource use
• Review agent tools, model integrations, and internal APIs for authorization, input validation, data exposure, and abuse risks
• Build logging and monitoring that supports investigation without exposing sensitive health information
• Perform threat modeling, manual assessment, and targeted adversarial testing of AI applications
• Partner with engineers to remediate findings and improve product architecture
• Contribute reusable security libraries, reference implementations, and engineering documentation
• Support incident investigations involving AI systems or member data
• Help improve and operationalize Function’s standards for secure AI development

Benefits

• 401k Match
• Choose your own holidays
• Health Insurance

• Ability to identify practical attack paths and translate them into engineering controls and tests
• Strong Python and backend engineering skills
• Clear written communication and the ability to document technical decisions
• Understanding of authentication, authorization, data isolation, secrets management, secure API design, and application security fundamentals
• Experience with agent tools, retrieval, memory, evaluations, model integrations, or AI orchestration frameworks
• Production experience building or securing AI agents, machine learning systems, data platforms, or model integrated applications
• Experience working directly with product and engineering teams
• Five or more years of experience across software engineering, AI engineering, product security, application security, cloud security, or related disciplines
• Familiarity with cloud infrastructure, workload identity, containers, and service monitoring
• Your dedication to these responsibilities will directly contribute to the success of our platform and the satisfaction of our users. We are looking for a proactive, skilled, and forward-thinking individual to join our team and help shape the future of our services