AI Phone - Security & Privacy Engineer

The role

This person will design and implement the security and privacy architecture for an AI-native phone. They will ensure AI agents can safely access user data and execute actions across the operating system.

What you will do

• Design the overall security and privacy architecture for the AI-native phone.
• Define permission models and access boundaries for AI agents.
• Design secure mechanisms for AI access to sensitive information.
• Implement appropriate sandboxing and isolation for agent execution.
• Define authentication, authorization and access-control mechanisms.
• Ensure users have control over AI information access and actions.
• Implement audit logging and user-visible activity tracking.
• Design secure storage, encryption, data retention and deletion mechanisms.
• Identify and mitigate AI-specific security risks.
• Review Android permission models, privileged system access, SELinux policies and system-level security boundaries.

Required qualifications

• 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 have

• 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.

About the company

bjakcareer is reimagining the phone to build proactive applications and devices that bring intelligence into daily conversations, coordination and workflows.