Founding iOS Engineer

doji s.a.; New York (NY); On-site; USD 130,000 - 180,000; Full time

Job summary

doji s.a. in NYC is seeking a founding iOS Engineer to craft a category‑defining avatar fashion shopping experience. This on‑site role involves building a native iOS app, collaborating with founders, and delivering high‑quality, testable code.

You will define mobile processes, optimize performance, and stay current with iOS developments while contributing to product strategy and user experience. Ideal candidates bring consumer apps at scale and strong skills in Swift, SwiftUI, UIKit.

Qualifications

• Built consumer apps at scale.
• Proficient with the modern iOS stack: Swift, SwiftUI, UIKit.
• Able to craft intuitive UX and maintainable, high‑quality code.
• Deep understanding of Swift 6.0 concurrency and performance profiling.
• Apply Apple design principles and guidelines.

Responsibilities

• Develop a native iOS app for our evolving product.
• Work with founders to design and implement novel mobile experiences.
• Build and maintain high‑quality, reusable, and testable code.
• Define mobile development processes – planning, testing, releasing, and monitoring.
• Collaborate in a shared codebase while upholding high coding standards.
• Optimize app performance and speed.
• Stay up‑to‑date with the latest iOS developments and best practices.
• Contribute to the overall product strategy and user experience.

Skills

Swift

SwiftUI

UIKit

MVVM

Git

Performance profiling

Concurrency

iOS development

WebSockets

Tools

Xcode

Job description

The Opportunity

We're reimagining fashion shopping with AI avatars. To do this we're developing cutting‑edge diffusion models and designing novel, personalized interfaces.

We're a small team of creative builders in NYC with a rare combination of taste and deep AI expertise. Previously we've shipped consumer products to millions at Apple, DeepMind, Meta, and startups. Backed by the investors behind OpenAI, Cursor, and SKIMS, our company is positioned at the intersection of AI, technology, and culture.

The Role

We're looking for an iOS Engineer to craft a category‑defining avatar fashion shopping experience. This role is in‑person from our office in NYC.

As Founding iOS Engineer you will…

• Develop a native iOS app for our evolving product

• Work with the founders to design and implement novel mobile experiences

• Build and maintain high‑quality, reusable, and testable code

• Define mobile development processes - including planning, testing, releasing, and monitoring

• Collaborate effectively in a shared codebase while upholding high coding standards

• Optimize app performance and speed

• Stay up‑to‑date with the latest iOS developments and best practices

• Contribute to the overall product strategy and user experience

You’re a great fit if you…

• Have built consumer apps at scale

• Have strong fundamentals and experience with the modern iOS stack (Swift, SwiftUI, UIKit)

• Take pride in crafting intuitive user experiences, polished UI and maintainable, high‑quality code

• Understand low‑level intricacies (Swift 6.0 concurrency) and know how to profile and measure app performance and speed

• Apply Apple’s design principles and interface guidelines

• Work with Git and Git flow methodology

• Evaluate different design patterns and tradeoffs, specifically MVVM

• Are self‑driven, high‑agency, and can master new skills quickly and deeply

• Thrive on rigorous, fast‑paced teams (startups or big tech)

• Have genuine interest in fashion, avatars, or creative expression

Bonus if you…

• Have experience with WebSockets, HTTP, concurrency and multithreading

• Have experience building complex, fluid UX animations in iOS

• Have worked in fashion or consumer e‑commerce