About LiveKitLiveKit is building the infrastructure layer for the agentic era of computing. Our platform gives developers everything they need to build, test, deploy, scale, and observe AI agents in production. Founded in 2021, LiveKit powers voice and agentic AI applications for OpenAI, Salesforce, Spotify, Meta, and tens of thousands of other developers, collectively facilitating billions of calls each year.About This RoleThis isn't one of those roles where "security" means running scans or writing policies that gather dust. We're looking for a real engineer — someone who thinks like a builder and a breaker. Someone who gets deep into the stack, whether it's an API endpoint, a container image, or a browser sandbox. You know how things are supposed to work — and what happens when they don't.While some security professionals lean toward policy, compliance, or audits (and we value that too), we're after someone who wants to write code, secure systems, dig into strange bugs, and harden the platform from top to bottom. This is not a role for pointing out what needs to be done. It's for someone who's ready to do it.You'll Thrive Here If You:think like both a builder and a breaker, and understand security from first principlescan analyze systems for weaknesses — whether they're in business logic, configuration, or codetranslate security concerns into engineering action without being the "no" personare an excellent communicator who can document and evangelize best practices across the orgstay current with security research, tooling, and threats — and put that knowledge into actionWhat You'll DoOwn security across the stack — applications, services, infrastructure, and developer workflowsProactively identify, assess, and mitigate risks in both infrastructure and application codebasesLead secure code reviews, architecture discussions, and threat modeling sessionsBuild tooling and automations that help prevent security issues before they reach productionHarden authentication and access control across internal and external surfacesPartner closely with engineers across teams to design secure-by-default APIs, workflows, and deploymentsInvestigate vulnerabilities, respond to security incidents, and manage disclosure processes when neededWho You Are6+ years of experience as a software engineer with a strong interest in security engineeringYou've led or heavily contributed to security engineering efforts across applications, infrastructure, or bothExperienced with threat modeling, secure coding practices, and vulnerability managementWorked with CI/CD systems, cloud platforms (AWS, GCP, etc.), and containerized environmentsYou've responded to real-world security incidents, led postmortems, or driven remediation effortsNice to HaveExperience with security reviews of WebRTC, media pipelines, or real-time systemsContributions to open-source security tooling or researchHands-on experience with static and dynamic analysis tools, fuzzing, or sandboxingYou've built (or tried to build) something with LiveKitOur Commitment to YouAn opportunity to build something truly impactful to the worldContribute to open source alongside world-class engineersCompetitive salary and equity packageHealth, dental, and vision benefitsFlexible vacation policyLiveKit is an equal opportunity employer and does not discriminate on the basis of any characteristic protected by applicable law. If you require a reasonable accommodation during the application or interview process, please contact recruiting@livekit.io.