Fullstack Engineer - Known

The role

You will be a core technical founder building the entire product surface of Known. This includes mobile apps, backend systems, and API integrations.

What you will do

• Build and ship mobile experiences in React Native.
• Design and maintain backend services in Node.js/TypeScript.
• Integrate third-party platforms like OpenAI/Anthropic LLMs, Apple/Google Pay, and reservation systems.
• Collaborate with AI/ML engineers to surface model outputs through UI and APIs.
• Own infrastructure and deployment using modern cloud platforms.
• Implement analytics and instrumentation to measure user engagement and product health.

Required qualifications

• 3–5 years building production fullstack or mobile applications.
• Strong proficiency in TypeScript, React, React Native, and Node.js.
• Experience designing and scaling RESTful APIs.
• Strong working knowledge of Postgres.
• Experience with cloud platforms (AWS, GCP, Vercel, Railway).
• Comfortable with modern development workflows: Git, CI/CD, feature flags, monitoring, and incident response.
• Passion for user experience and product quality.

Nice to have

• Familiarity with WebSockets and WebRTC for real-time communication

About the company

Pear-VC is the company for the Known role.