Senior iOS Engineer

Tase is a voice-first personal assistant. The iOS app is where most people meet the product, and the quality of that meeting decides everything. We need an engineer who can hold the whole client in their head and ship the kind of interaction polish that makes an assistant feel alive.

About the role

You will be the primary engineer on the iOS app, working directly with the founder. The app is SwiftUI-native, targets iOS 26, and uses Liquid Glass throughout. You will own features end to end, from the voice pipeline to the data layer to the final pixel on screen. There is no separate mobile team to hand things off to. You are the mobile team.

What you'll do

Build and maintain the SwiftUI app, with a focus on the real-time voice experience and the glass-based interface system. Work on the audio pipeline that carries voice to and from the model. Ship features across tasks, finance, health, goals, and the AI Brain memory system. Profile and optimize for the moments where latency matters most. Make the small interaction decisions that compound into something that feels good to use every day.

What we're looking for

• Several years shipping production iOS apps in Swift, with recent deep SwiftUI experience.
• Comfort with audio and real-time systems. WebSocket streaming, audio sessions, and low-latency UI do not scare you.
• Strong opinions about interaction design and the craft to back them up.
• Experience with Firebase or a similar real-time backend, and the discipline to keep listeners and state clean as the app grows.
• A bias toward shipping. We move fast and we care about what reaches users.