Founding Product Engineer

About the Role This is a founding-level product engineering role at an early-stage AI consumer startup building an ambient intelligence system that lives across phone, watch, and desktop. You'll own the entire product surface end-to-end — from UX and UI through to the underlying AI agent and ASR pipeline — working directly with the Head of Product to ship features fast, with minimal spec and maximum ownership. This is a role for a true superstar generalist: someone who combines sharp product judgment with the technical range to build across platforms and AI systems independently. No visa sponsorship is available for this role. What You'll Do Own features end-to-end across mobile, watch, desktop, and the agent/ASR pipeline underneath them. Turn Slack threads and one-line asks into shipped, polished product — partnering directly with the Head of Product. Make independent UX, UI, backend, and AI/ML trade-offs based on what each feature actually needs. Ship improvements to ASR latency and accuracy, wearable reliability, cross-platform meeting detection, and agent responsiveness. Take features from design through ship through iteration, driven by real user feedback — no waiting for the next directive. Help shape and execute the product roadmap alongside Product and Design. What We're Looking For Required (dealbreakers): 2+ years of full-time engineering experience shipping consumer features end-to-end across mobile, desktop, wearable, or backend platforms. Demonstrated capability across UX, UI, backend, and AI/ML — with shipped end-to-end consumer features across at least two of: mobile, desktop, wearable, or backend. Founding or early-stage startup engineering experience (pre-Series B or equivalent scale). Also required: Full-stack product development: ability to make independent trade-offs and ship with minimal specification. Real-time and streaming systems experience — built or shipped features requiring low-latency or continuous data pipelines. Mobile platform development (iOS, Android, or cross-platform frameworks) with shipped consumer apps. Backend systems development — designed and shipped server-side features, APIs, or agent systems. Strong product sense demonstrated through shipped work: knows what's worth building and executes without detailed specs. Nice to have: iOS or watchOS development with shipped applications. Speech, audio, or ASR ML pipeline experience (audio processing, speech recognition, or similar). AI-native consumer app experience — shipped features in LLM-powered or agent-based products. Agent or LLM feature-building — implemented agentic workflows or LLM-based features in production. Hardware-adjacent or wearable startup background. Location This is a hybrid role based in San Francisco, CA . You'll be expected to work in-person regularly with the founding team. Compensation & Benefits Compensation details will be discussed during the interview process. As a founding team member, equity will be a meaningful component of the package.