Software engineer (iOS/MacOS)

Untitledinbrackets

New York (NY)

On-site

USD 180,000 - 260,000

Full time

14 days+

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Benefits offered by this job

Free lunch in the office

Competitive salary and equity

Health, dental, and vision insurance

Job summary

[untitled] is seeking a senior iOS/macOS engineer to ship features in the iOS codebase, lead the macOS app, and run AI models locally on the Mac. You will collaborate directly with the founding iOS engineer and design team, pushing the craft surface with custom UX and animations.

You’ll own performance, quality, and responsiveness, raise engineering standards, and help shape a music-focused product with a small, autonomous team.

Qualifications

7+ years of iOS engineering
Fluency in Swift and Objective-C
Experience connecting iOS apps to backend services
Strong grasp of iOS frameworks, design patterns, and the full mobile lifecycle
A complex client-side system you personally architected and shipped. you can explain every decision, what you chose not to do, and what broke
Shipped real work at startups or small teams
Side projects or apps you've put into the App Store. things you built because you wanted them to exist

Responsibilities

Design and ship features across iOS and macOS with engineers, designers, and the founders
Lead the macOS app
Run AI models locally on the Mac
Own performance, quality, and responsiveness
Find bottlenecks and fix bugs across the stack
Raise the bar on code quality, testing, and engineering process

Skills

Swift

Objective-C

iOS

macOS

Core Data

Core Animation

Apple frameworks

Push notifications

UI/UX

Performance

Memory tuning

Async systems

Job description

We're hiring a senior iOS/macOS engineer to ship inside our iOS codebase and lead the macOS app. You'll work directly with our founding iOS engineer and the design team. You'll also have room to push local execution of music AI models on the Mac.

iOS at [untitled] is not the most infrastructural surface in the company. It's the craft surface. every feature has custom UX, custom animation, and custom interaction. Our iOS app has a 4.8 rating across 3,500+ reviews. That's the bar.

What you'll do

Design and ship features across iOS and macOS with engineers, designers, and the founders
Lead the macOS app
Run AI models locally on the Mac
Own performance, quality, and responsiveness
Find bottlenecks and fix bugs across the stack
Raise the bar on code quality, testing, and engineering process

What we're looking for

7+ years of iOS engineering

Fluency in Swift and Objective-C

Experience connecting iOS apps to backend services

Strong grasp of iOS frameworks, design patterns, and the full mobile lifecycle

A complex client-side system you personally architected and shipped. you can explain every decision, what you chose not to do, and what broke

Shipped real work at startups or small teams

Side projects or apps you've put into the App Store. things you built because you wanted them to exist (the bar is something like our founding iOS engineer's music practice journal app, which has 30,000+ downloads and a 4.9 rating)

Exploratory communication. you think out loud, name tradeoffs, stay low-ego when corrected

Comfort with ambiguity and high autonomy. nobody here is going to assign you work

Passion for craft. you treat UI like art

Core Data, Core Animation, and other Apple frameworks

Cloud message APIs and push notifications

Strong opinions on UI/UX

Performance and memory tuning

Outsized love for music

Comfort designing async server systems (you'll be asked to in the systems interview)

Flexible days in office

Free lunch in the office

Competitive salary and equity