Security-Focused Software Engineer for AI Products

Thinking Machines Lab Inc.; San Francisco, Northern (CA, KY); Hybrid; USD 350,000 - 475,000; Full time

Benefits offered by this job

Health, dental, and vision benefits

Unlimited PTO

Parental leave

Relocation support

Job summary

Thinking Machines Lab Inc. in San Francisco is seeking a software engineer focused on security-by-default while supporting fast product iteration.

You0ll embed with product and research teams to bake security into design and development and to build tooling that keep systems safe at scale. You will design security controls across the product stack, collaborate with researchers to mitigate AI-powered risks, and improve observability for security events.

Qualifications

• Bachelore29s degree or equivalent experience in computer science, engineering, or similar.
• Proficiency in at least one backend language (we use Python or Rust).
• Strong generalist software engineering background and ability to review production code for security risks.
• Handse2a0on experience securing web apps and APIs especially auth flows, access control, secrets management, input validation, and data protection.
• Familiarity with common vulnerability classes and prevention frameworks; experience hardening prototypes into production.
• Comfort with modern cloud infrastructure and understanding how application concerns intersect with infrastructure.
• Comfort operating across the stack and owning projects end-to-end.
• Thrive in a highly collaborative environment involving many, different cross-functional partners and subject matter experts.
• A bias for action with a mindset to take initiative to work across different stacks and different teams where you spot the opportunity to make sure something ships.

Responsibilities

• Partner with product and research teams to embed security into the development lifecycle: threat modeling, design reviews, and secure defaults for new features.
• Design and implement security controls across our product stack (authentication, authorization, session management, input validation, etc.).
• Build and maintain security tooling and automation for engineers: secure frameworks and templates, CI/CD checks, dependency management, and vulnerability detection.
• Collaborate with researchers to identify and mitigate AIpowers product risks, such as model abuse, prompt injection, data leakage, or misuse of capabilities.
• Improve observability and detection for securitylevant events: access anomalies, abuse patterns, and suspicious behavior in production.

Skills

Python

Rust

Security-aware coding

Code review for security

Threat modeling

Cloud infrastructure

Observability & detection

Cross-functional collaboration

Education

Bachelore29s degree in computer science or related

Tools

CI/CD tooling

Vulnerability scanners

Auth & identity platforms

Monitoring tools

Job description

Thinking Machines Lab Inc. in San Francisco is seeking a software engineer focused on security-by-default while supporting fast product iteration.

You0ll embed with product and research teams to bake security into design and development and to build tooling that keep systems safe at scale. You will design security controls across the product stack, collaborate with researchers to mitigate AI-powered risks, and improve observability for security events.