Member of Technical Staff (iOS)

ATG • New York, NY

123d

About The Position

ATG (Autonomous Technologies Group) is an AI lab deploying frontier reasoning systems within financial markets. We’re looking for a software engineer to help develop, launch, and maintain the first version of the ATG iOS app. This is a zero-to-one role: you’ll own the mobile experience end-to-end, from architecture to polish. Your work will directly shape how users interact with ATG, shaping the future of mobile AI experiences. As a key member of our team, you'll push the boundaries of iOS development, combining technical excellence with design finesse. From pixel-perfect UI to smooth animations and thoughtful micro-interactions, you’ll create seamless, motion-driven experiences that delight users.

Requirements

• 3+ years of hands-on iOS experience (Swift, UIKit/SwiftUI, Combine, concurrency).
• Shipped at least one app to the App Store and evolved it based on real-user feedback.
• Comfortable shipping fast while maintaining quality (modular design, unit tests, CI, profiling).
• Resourceful: you choose the right tools, work lean, and thrive without heavy scaffolding.
• Strong product sense: you care about UX and sweat the details.
• Clear communicator—whether debugging, brainstorming, or shifting gears under pressure.
• Strong design sensibility and an eye for detail—experience working closely with UI/UX designers to create polished, high-quality mobile experiences.
• Expertise in leveraging the latest AI tools (Cursor, Claude Code, Codex, etc) to increase productivity & code output while maintaining high code quality, maintainability, and structure.

Nice To Haves

• Experience integrating ML models on-device or in-app.
• Built dual-platform experiences (iOS + Android or iOS + Web).
• Led iOS architecture: modular features, performance tuning, advanced debugging.

Responsibilities

• Architect and ship our first iOS app—from private beta to App Store release.
• Implement core features with fluid UI, high performance, and scalable client infrastructure.
• Collaborate closely with the founders, product, and design on prototyping, and product direction.
• Build testing pipelines (unit tests, CI/CD) to keep reliability high while moving fast.
• Deploy platform-level improvements (real-time syncing, on-device ML, efficient data flow).
• Iterate quickly on new iOS experiences that make AI useful, intuitive, and delightful in every user’s pocket.
• Prioritize performance, reliability, and responsiveness to deliver best-in-class mobile experiences.

Benefits

• Work on AI with real stakes.
• Early team of repeat founders and ex-researchers from top companies.
• High agency, zero bureaucracy environment.

What This Job Offers

• Career Level: Mid Level