Security Engineer Jobs

About The Position

Requirements

• Strong experience in mobile security, Android security, application security, or systems security.
• Deep understanding of Android security architecture, including application sandboxing, permissions, SELinux, Binder IPC, and privileged system services.
• Experience designing authentication, authorization, and access-control systems.
• Strong understanding of encryption, secure storage, key management, and data protection.
• Experience with security threat modeling, vulnerability assessment, and penetration testing.
• Understanding of privacy-by-design principles, data minimization, and user consent.
• Ability to work across Android platform, backend, and AI agent architectures.

Nice To Haves

• Experience with AOSP security customization or Android platform security.
• Experience securing system-level applications or privileged Android services.
• Experience with AI agent security, prompt injection, tool-use security, and LLM data leakage.
• Experience with mobile device security, Trusted Execution Environment (TEE), hardware-backed keystores, and secure boot.
• Experience with privacy engineering for products handling sensitive personal information.
• Experience building permission and approval systems for autonomous agents.

Responsibilities

• Design the overall security and privacy architecture for the AI-native phone.
• Define permission models and access boundaries for AI agents interacting with user data and system services.
• Design secure mechanisms for AI access to messages, contacts, calendars, notifications, camera, microphone, location, and other sensitive information.
• Implement appropriate sandboxing and isolation for agent execution.
• Define authentication, authorization, and access-control mechanisms for AI tools and application integrations.
• Ensure users have control over what information AI can access and what actions it can execute.
• Implement audit logging and user-visible activity tracking for AI access and actions.
• Design secure storage, encryption, data retention, and deletion mechanisms for personal data and memory.
• Identify and mitigate AI-specific security risks, including prompt injection, malicious applications, data exfiltration, and unauthorized tool execution.
• Review Android permission models, privileged system access, SELinux policies, and system-level security boundaries.
• Work closely with Android/AOSP, Agent Runtime, Context & Memory, and Applied ML teams to build security into the architecture.
• Conduct security assessments, threat modeling, and penetration testing for system-level AI capabilities.