security engineer for AI infrastructure

LiveKit builds infrastructure for the agentic era of computing. Its platform enables developers to build, test, deploy, scale, and observe AI agents in production, powering voice and agentic AI applications for major companies and thousands of developers.

• Own security across applications, services, infrastructure, and developer workflows;
• Identify, assess, and mitigate risks in infrastructure and application codebases;
• Lead secure code reviews, architecture discussions, and threat modeling sessions;
• Build tooling and automations to prevent security issues before production;
• Harden authentication and access control across internal and external surfaces;
• Partner with engineers to design secure-by-default APIs, workflows, and deployments;
• Investigate vulnerabilities, respond to security incidents, and manage disclosure processes.

• Think about security from first principles as both a builder and a breaker;
• Analyze systems for weaknesses in business logic, configuration, and code;
• Translate security concerns into engineering actions;
• Communicate clearly and document and promote best practices across the organization;
• Stay current with security research, tooling, and threats and apply that knowledge;
• Have 6+ years of experience as a software engineer with a strong interest in security engineering;
• Have led or significantly contributed to security engineering efforts across applications, infrastructure, or both;
• Have experience with threat modeling, secure coding practices, and vulnerability management;
• Have worked with CI/CD systems, cloud platforms such as AWS and GCP, and containerized environments;
• Have responded to real-world security incidents, led postmortems, or driven remediation efforts;
• Nice to have: security reviews of WebRTC, media pipelines, or real-time systems, contributions to open-source security tooling or research, hands-on experience with static and dynamic analysis tools, fuzzing, or sandboxing, experience building something with LiveKit.

• Competitive salary and equity package;
• Health, dental, and vision benefits;
• Flexible vacation policy.