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Fullstack Engineer - Known

PearSan Francisco
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Pear logo

Fullstack Engineer - Known

Pear

Apply Now

Known is seeking a Fullstack Engineer to be a core technical founder responsible for building the entire product surface, including mobile applications and backend systems. The role involves close collaboration with the founding team to translate product ideas into production code, focusing on user experience and system architecture.

Qualification

  • 3–5 years building production fullstack or mobile applications, ideally in consumer products or startups.
  • Strong proficiency in TypeScript, React, React Native, and Node.js.
  • Experience designing and scaling RESTful APIs with attention to performance, security, and maintainability.
  • Strong working knowledge of Postgres for data modeling and performance.
  • Experience with cloud platforms (AWS, GCP, Vercel, Railway) for deployment and infrastructure.
  • Familiarity with WebSockets and WebRTC for real-time communication is a plus.
  • Passion for user experience and product quality.

Responsibility

  • Build and ship mobile experiences in React Native that are fast, delightful, and accessible.
  • Design and maintain backend services in Node.js/TypeScript, including RESTful APIs and WebSocket connections for real-time chat.
  • Integrate third-party platforms to deliver seamless, automated experiences.
  • Collaborate with AI/ML engineers to surface model outputs through intuitive UI and performant APIs.
  • Own infrastructure and deployment using modern cloud platforms, ensuring reliability, security, and scalability.
  • Implement analytics and instrumentation to measure user engagement and product health.

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