Fullstack Engineer - Known

Design a reservation and payment integration layer that allows users to book dates, split costs, and receive confirmations — all within the app.

Create a real-time messaging system with typing indicators, read receipts, and optional AI-powered conversation starters using WebSockets and streaming LLM responses.

Build WebRTC infrastructure for voice and video chat between users and AI voice agents during onboarding and matching conversations.

Develop a modular component library for personalized UI cards (match suggestions, date ideas, conversation prompts) powered by ML model outputs.

Implement a feature flagging and A/B testing framework to enable rapid experimentation across mobile and web surfaces.

Expand the admin dashboard with new functionality for monitoring user activity, system health, and ML model performance metrics.

This is a chance to be a technical co-architect of a consumer AI product from the ground up — to own the entire stack and ship features that directly impact how people meet, connect, and fall in love. You’ll work at the intersection of design, data, and AI , with the autonomy to build systems your way and the responsibility to make them world-class.