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Product Engineer

San Francisco, CA💼 Full-time🗓 2026-09-20 → 2026-09-25

Core

Architecting core messaging infrastructure and building an API/developer platform to enable human-AI collaboration in workplace communication tools.

Role type

Senior IC Product Engineer (AI Agents & Infrastructure)

Builds

Core messaging infrastructure, API and agent developer platform, interaction patterns for human-AI collaboration

Domain

AI Agents, Workplace Communication, LLMs

Deliverable

production ML models | product features | infrastructure

Required skills

LLMs daily usage, AI-powered app development, rapid prototyping, API design, retrieval systems, evaluation frameworks, engineering craft

Preferred skills

Early-stage startup experience, product instincts, design collaboration

Technologies

LLMs, Retrieval systems, Agent frameworks

Responsibilities

Architect and ship core messaging infrastructure, prototype new human-AI interaction patterns, create an API and agent developer platform, iterate on context and retrieval systems, raise engineering craft standards

Seniority

Senior, hands-on IC

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