Security Engineer

Help strengthen Apple Pay through hands-on security testing and rapid tooling improvements.

Responsibilities

• Break down hardware, software, and services to uncover gaps others may miss
• Apply AI to accelerate testing and iteratively improve security tooling
• Build Skills, Agents, and workflows that make security testing sharper across payments, transit, access, and identity
• Independently verify or refute findings instead of accepting results at face value
• Challenge AI outputs, prove them wrong, and improve the approach rather than rubber-stamp results

Requirements

• Know how to use tools to learn new areas, run experiments, and develop security issue discovery capabilities
• Curiosity and interest in exploring unfamiliar technical domains
• Ownership mindset and pride in improving the engineering environment
• Threat modeling experience for hardware and/or software designs, including where attacks originate and what protections exist
• Hands-on security testing experience, such as pentesting, negative testing, or equivalent
• Skilled at security code reviews
• Hands-on experience using agentic / LLM-based coding tools
• Ability to build and refine Skills, Agents, and AI workflows, not only operate them
• Ability to independently verify or refute a finding rather than accept it at face value
• 5+ years of experience in a security-focused role

Technologies

• AI
• LLM-based coding tools
• Skills, Agents, AI workflows
• Cryptographic algorithms (PQC, AES, SHA, etc.)

Preferred Qualifications

• Superior problem solving and debugging skills
• Understanding of cryptographic algorithms (PQC, AES, SHA, etc.)
• Ability to clearly communicate across many teams, including explaining issues to developers
• Ability to propose new designs and architectural improvements after testing
• Experience shipping software or integrating security across every stage of the software lifecycle

Location: Austin, TX (onsite)
Minimum experience: 5 years