Founding Product Engineer Jobs

Founding Product Engineer for an early-stage legal tech team in San Francisco. Build AI-powered full-stack software with TypeScript and React, shaping engineering practices. Requires 3-4 years experience and AI/LLM skills. $140k-$180k.

Founding Product Engineer to build an AI-driven B2B pricing platform in San Francisco. Requires 8+ years of backend experience with Python and FastAPI, plus React skills. Base salary $200,000-$250,000.

Join AgentMail as a Founding Product Engineer in San Francisco, building communication infrastructure for AI agents. Own products end-to-end, from frontend to backend, with high autonomy and direct customer contact.

HappyRobot seeks a Founding Product Growth Engineer in San Francisco to own product positioning, launches, and growth experiments. Requires 4+ years in product marketing or growth, strong storytelling, and design sense. Competitive salary plus equity.

Senior Founding Product Engineer for an early-stage B2B compliance SaaS in Munich (hybrid, 4 days on-site). Own the full stack with TypeScript, React, Python and cloud, ship AI-enabled features, and work directly with customers. €80-90k. German and English required.

Founding Product Engineer for an early-stage consumer AI company in San Francisco. Own an AI assistant end to end, from agent architecture and evals to full-stack TypeScript/React features. $200k-$300k, on-site.

Founding Product Engineer for an early-stage energy tech startup in Munich. Own full-stack features, build data-intensive backends and intuitive interfaces. Requires 2+ years experience, German fluency, React, Python, PostgreSQL. €85k-€140k.

Founding Product Engineer role in Munich building an enterprise energy procurement platform. Requires 2+ years scalable web app experience, fluent German, and skills in PostgreSQL, React, Python. Hybrid, €85k-€140k.