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Lead security across applications, services, infrastructure, and developer workflows. Identify, assess, and mitigate risks; run secure code reviews, threat modeling, and architecture discussions; build automation and tooling to prevent issues; harden authentication and access control; investigate incidents and manage disclosures; partner with engineering teams to design secure-by-default APIs and deployments.

As a Distributed Systems Engineer, you'll design and evolve LiveKit's core systems, implement resilient architectures, and enhance reliability and developer velocity, working on critical features in production environments.

Build post-training infrastructure for voice and text agents, including training environments, verifiers, synthetic data pipelines, evaluations, and end-to-end experiments. Select and adapt open-weight models, design robust rewards, deploy models to production, and improve behavior using real-world usage. The role requires strong Python engineering, experience taking models from raw data to production, GPU familiarity, and collaborative remote work.

The Senior Product Engineer will build web and CLI interfaces for developers using LiveKit, focusing on product experience and user feedback. Responsibilities include writing production code, engaging with customers, and making product decisions to enhance developer experience.

Design and evolve core control, data, and observability systems; implement resilient region-spanning architectures; build libraries, protocols, and tooling; diagnose and harden critical paths using metrics, tracing, and testing; and shape platform capabilities across identity, scheduling, observability, and distributed state management.

Design and implement the core components of the Agents Python framework, focusing on API and abstraction development for AI-driven applications.

Work directly with customer engineering teams to design, prototype, and deploy real-time audio, video, and voice AI applications on LiveKit. Design scalable architectures, build integrations and reference implementations, debug production issues, lead technical workshops, and translate customer needs into product insights. Contribute code and documentation to improve developer experience and support customers through launch and scaling.

Provide technical support and advocacy for developers using LiveKit: triage and fix bugs, write sample and production-quality code, update docs, collaborate with community, meet customers to ensure successful integrations, and partner with Sales/BD on customer strategy.