Matter Intelligence
Founding Fullstack Engineer - Known
Matter Intelligence, San Francisco, California, United States, 94199
Location
San Francisco Employment Type
Full time Location Type
On-site Department
Known Co About the role
You’ll work across the Known product surface: mobile features, web backend, and API integrations. You’ll ship quickly, leverage AI coding tools (e.g. Cursor, Copilot), and help us deliver a polished, consumer-grade experience. Responsibilities
Build and iterate on mobile features with React Native. Extend and maintain backend APIs in Node.js/TypeScript. Integrate with third-party APIs (OpenAI/Anthropic, reservations, payments, messaging). Contribute to frontend components in React (web app). Collaborate with AI/ML engineers to expose model-powered features via APIs/UI. Requirements
4+ years as a fullstack or frontend/backend engineer. Strong with TypeScript, React, React Native, Node.js. Experience with API design, integration, and scaling. Startup mindset: comfortable working across the stack and learning fast. Example Projects
Build mobile onboarding flow with AI-assisted profile setup. Integrate payments and reservations APIs for seamless date planning. Create personalized UI components powered by ML model outputs.
#J-18808-Ljbffr
San Francisco Employment Type
Full time Location Type
On-site Department
Known Co About the role
You’ll work across the Known product surface: mobile features, web backend, and API integrations. You’ll ship quickly, leverage AI coding tools (e.g. Cursor, Copilot), and help us deliver a polished, consumer-grade experience. Responsibilities
Build and iterate on mobile features with React Native. Extend and maintain backend APIs in Node.js/TypeScript. Integrate with third-party APIs (OpenAI/Anthropic, reservations, payments, messaging). Contribute to frontend components in React (web app). Collaborate with AI/ML engineers to expose model-powered features via APIs/UI. Requirements
4+ years as a fullstack or frontend/backend engineer. Strong with TypeScript, React, React Native, Node.js. Experience with API design, integration, and scaling. Startup mindset: comfortable working across the stack and learning fast. Example Projects
Build mobile onboarding flow with AI-assisted profile setup. Integrate payments and reservations APIs for seamless date planning. Create personalized UI components powered by ML model outputs.
#J-18808-Ljbffr