Founding Product Engineer

About the role

Twin is building a platform where anyone can deploy autonomous AI agents that run real business operations. As a Founding Product Engineer you will work directly with the founders and early users to design, build, and ship product features that enable these agents.

Key responsibilities

• Design and implement new AI agent capabilities from scratch.
• Create onboarding flows that dramatically improve user activation.
• Improve the infrastructure that supports millions of agent executions.
• Engage with power users to gather feedback and iterate quickly.
• Ship features in a single day and refine them based on real‑time user input.
• Leverage AI tools to prototype solutions in hours that would previously take weeks.

Required profile

• Proven track record of building products that users love (start‑ups, side projects, open‑source, etc.).
• Strong user‑centric mindset combined with deep technical curiosity.
• Ability to move fast, thrive in ambiguity, and take ownership without waiting for permission.
• Passion for learning and applying new AI technologies.

Required skills

• Experience using AI coding assistants (e.g., Claude, Codex, Cursor) for development, debugging, and prototyping.
• Comfortable pair‑programming with AI and reviewing AI‑generated code.