Product Engineer, Personal AI
Palo Alto, CA$200k - $420kPosted 2mo ago
About the role
Product Engineer role at River AI focused on end-to-end building of personal AI experiences, spanning backend, frontend/mobile, LLM-driven workflows, infrastructure, and production delivery.
Responsibilities
- Design, build, and launch polished, responsive user-facing product experiences across modern web and mobile stacks, partnering closely with design.
- Architect high-performance backend services in Rust and Python, managing APIs, data systems, job queues, event pipelines, and distributed systems at scale.
- Integrate large language models into real user workflows, managing tool use, memory, retrieval, structured outputs, latency optimization, and cost control.
- Own the core infrastructure needed to run a high-scale consumer AI product, including deployment, monitoring, CI/CD, cloud infrastructure, and incident response.
- Partner with research and infrastructure teams to take ambiguous ideas from prototype to production, translating new model capabilities into understandable and trustworthy product experiences.
Qualifications
- Bachelor’s degree in Computer Science, a related technical field, or equivalent practical industry experience.
- A proven track record of building and launching meaningful production software, ideally in consumer products, large-scale systems, or high-growth startups.
- Deep backend expertise with practical experience in Rust, Python, databases, APIs, distributed systems, and production architecture.
- Strong frontend or mobile capability with modern technologies such as TypeScript, React, React Native, Swift, or Flutter.
- Exceptional product judgment with the ability to reason backward from user needs, alongside a high degree of ownership to navigate ambiguity.
Skills
Required:RustPythonAPIsDistributed systemsFrontend / Mobile developmentTypeScriptReact / React NativeProduct judgment
Nice to have:LLM integration
Benefits
- Comprehensive health, dental, and vision insurance; unlimited PTO; relocation assistance as needed.
Last updated Sep 23, 2026. Interested? Apply on the company site.
About River AI
Intelligence that flows with you
River is building a new stack for Personal AI.
LoRA fine-tuningReinforcement learningOpen modelsPay per tokenAPIPersonal AI
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