Fullstack Engineer

Responsibilities

• Build and ship mobile experiences in React Native including onboarding, real-time messaging, and match discovery
• Design and maintain backend services in Node.js/TypeScript, RESTful APIs, and WebSocket connections
• Integrate third-party platforms such as OpenAI/Anthropic LLMs, Apple/Google Pay, and reservation systems
• Collaborate with AI/ML engineers to surface model outputs through intuitive UI and performant APIs
• Own infrastructure and deployment using modern cloud platforms to ensure reliability and scalability
• Implement analytics and instrumentation to measure user engagement and product health

Requirements

• 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 including data modeling and queries
• Experience with cloud platforms such as AWS, GCP, Vercel, or Railway
• Proficiency with modern development workflows including Git and CI/CD
• Passion for user experience, polish, and product quality

Preferred Qualifications

• Familiarity with WebSockets and WebRTC for real-time communication
• Experience in consumer products or startup environments

About the Company

Known is building a consumer AI product designed to help people meet, connect, and fall in love through intelligent matching and seamless digital experiences.