Founding Product Engineer

This is a founding product engineering seat at a early-stage B2B SaaS startup building tools for merchants and the e-commerce ecosystem. You will own the full product loop from identifying the problem to shipping the solution with direct influence over what gets built and why. It is a role for someone who wants the whole surface not a slice of it.

• Own features end-to-end across frontend and backend from problem definition through to production.
• Work directly with merchants and customers: join calls review session replays and develop a firsthand feel for their pain points.
• Make product and UX decisions not just implementation ones often as the primary person who has thought deeply about a given flow.
• Hold a high bar on interface craft ensuring the UI feels considered and intentional.
• Keep the codebase clean well-structured and welcoming for the engineers who come after you.

• 3 years of hands-on experience with TypeScript React and comfortable owning both frontend and backend layers.
• A track record of shipping product features end-to-end without a spec handed to you from problem framing to production.
• Background at a company known for high engineering standards whether a major tech company or a top-tier startup.
• A portfolio or examples demonstrating strong product and UI craft not just working code.
• Experience at a growth-stage VC-backed startup.
• Proficiency with AI-assisted development tools such as Cursor GitHub Copilot or similar.
• Strong CS fundamentals ideally from a rigorous academic background.
• Familiarity with the e-commerce or Shopify ecosystem is a plus.
• Prior founding experience is a plus.

Base salary: $150000 to $350000 USD annually plus equity. Visa sponsorship is not available for this role.

On-site in San Francisco United States.