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Fullstack Engineer Job Opening In San Francisco – Now Hiring SearchStars


Job description

Founding Fullstack Engineer (Frontend-Focused)


San Francisco | Full-Time | On-Site


We’re looking for a founding engineer to shape the very first version of a next-generation social marketplace for AI products.

You’ll have the chance to architect and own the core experience—how users discover, test, and evaluate AI tools—while working side-by-side with the founding team.


What You’ll Do


  • Design and deliver a polished, scalable frontend experience used daily by developers, PMs, and executives in the AI space.




  • Architect and implement interactive testing environments where AI products can be compared in real time.




  • Blend social and marketplace elements into a seamless, engaging product experience.




  • Establish the design system that will serve as the foundation for scaling to hundreds of thousands of future AI products.




  • Collaborate closely with product and leadership to translate loose ideas into high-quality, production-ready features.


  • What We’re Looking For


  • 2–5 years of experience in fullstack or frontend-heavy engineering roles, ideally in fast-paced startup environments.




  • Deep proficiency in React Native (Expo, navigation frameworks, modern state management).




  • Strong grasp of modern styling systems like Tailwind, Tamagui, or similar, with an eye for pixel-perfect UI.




  • Comfort with profiling and performance optimization for a smooth UX on both mobile and web.




  • Track record of taking ownership from concept through launch.




  • Bonus: prior founder or founding engineer experience, or open-source contributions in the React Native ecosystem.


  • Why This Role Matters


    This is not just about building features—it’s about defining the core experience of a new category.

    You’ll have deep influence on technical decisions, product direction, and user experience, while working on challenges like:


  • Modeling complex social dynamics in a digital environment.




  • Designing intuitive workflows for comparing and evaluating AI products.




  • Building infrastructure that can handle real-time interactions at scale.


  • If you’re excited to build something from the ground up, own the frontend vision, and see your work shape the way people adopt and trust AI products, this is your chance.

    Required Skill Profession

    Computer Occupations


    • Job Details

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