Member of Technical Staff: iOS Engineer

Member of Technical Staff: iOS Engineer (Ego) Location: San Francisco, CA (hybrid) · Reports to: Founding team About the role Ego AI is a YC-backed applied AI research lab building the behavioral infrastructure for AI companions and agents. We work at the intersection of real-time conversational instincts, memory, and persistent identity; the layer that makes AI feel genuinely alive. We're a small, fast-moving team and we're defining a new category of human-AI interaction.

What you'll do Own the iOS surface for Ronin — our suite of AI agents — from design handoff to production Work directly with our designer and backend engineer to implement high-fidelity designs with precision and speed Build and maintain the core mobile experience: real-time voice interfaces, conversational flows, and agent interactions Ship fast, iterate with the team, and take full ownership of the mobile codebase What we're looking for Must have Shipped at least one consumer iOS app with real users Strong SwiftUI fundamentals and comfort owning a codebase end-to-end Ability to implement high-fidelity designs faithfully — pixel precision matters Always-ship mindset: you close loops, don't leave things in draft, and take pride in getting things out the door Nice to have Experience building agentic or LLM-powered features on mobile Background in consumer apps — social, utility, or anything with high daily engagement Familiarity with real-time audio or voice interfaces Comfort working in a fast-moving, early-stage environment where the product is still being definedProjects this hire will own Use AI tools freely.

We do. You will walk us through the design and defend every trade-off, so own each decision in the repo.