Tacit · 1 day ago
AI Product Engineer
San Francisco, CA
Full-time
Onsite
Entry, Mid Level
$120K/yr - $180K/yr
2+ years expTacit is an early-stage, stealth tech startup developing innovative hardware that rethinks human-computer interaction. They are seeking a full stack AI product engineer to turn ideas into user-facing products, working on core product development and crafting apps and interactions across various platforms.
Computer Software
Responsibilities
Own the product stack (Rust, Swift, K8s/Self-hosted) that powers voice dictation, agent execution, and real-time interactions across wearable hardware, desktop, web, and mobile
Build agentic workflows : intent understanding, tool/function calling, action execution, and feedback loops that feel fast and reliable
Design and prototype voice-first UX (wake words, push-to-talk, streaming partials, editing, confirmations, error recovery) and polish until it feels like magic
Build apps that turn raw sensing of speech outputs into useful actions (compose messages, navigate apps, run commands, control tools)
Implement guardrails and observability for agents (permissions, “are you sure?” moments, logging, replay, evaluation, and debugging)
Own project requirements and deliver high-quality results
Address bugs, optimize for latency and reliability, and ensure system stability under real-time constraints
Qualification
Required
Proficiency in Rust, Swift, AWS, Linux
Have shipped multiple 0→1 products or ambitious side projects that real people use. Bonus points if involving real-time voice, streaming UX, or automation
Experience building or integrating LLM-powered applications (agent frameworks, tool calling, retrieval/context, evals/telemetry, prompt/versioning)
Independent work ethic, flexibility, and resourcefulness
Effective communication and collaboration skills
Comfortable in a fast moving startup environment; excited to build independently
2 years of experience in a Software Engineering role and a Bachelor's degree or higher in a relevant field
Preferred
Strong product instincts and UX taste—especially around voice-first interaction design
Experience with real-time systems (streaming audio, partial ASR, low-latency UIs, websockets/gRPC)
Familiarity with desktop automation or system integrations (macOS/Windows hooks, accessibility APIs, browser extensions, device services)
Experience with data visualization tools or libraries
Benefits
Additional equity package
Company
Tacit
We are an early-stage, stealth tech startup based in San Francisco, developing innovative hardware that rethinks human-computer interaction.
11-50 employees
Funding
Current Stage
Early StageCompany data provided by crunchbase