3+ years of hands-on iOS experience (Swift, UIKit/SwiftUI, Combine).
Experience shipping at least one app to the App Store and iterating based on user feedback.
Ability to ship quickly without compromising on quality through modular design and CI practices.
Resourceful, able to select the right tools and thrive in an agile environment.
Strong product sense with a focus on user experience and attention to detail.
Clear communicator, adaptable under pressure for effective collaboration.
Strong design sensibility with experience in creating polished mobile interfaces, working closely with UI/UX designers.
Responsibilities
Architect and launch the first iOS app, from private beta to App Store.
Implement core features focusing on fluid UI, high performance, and scalability.
Collaborate with founders and cross-functional teams on product direction and prototyping.
Build testing pipelines to ensure reliability while maintaining speed.
Deploy improvements like real-time syncing and on-device ML features.
Iterate on iOS experiences that enhance user engagement with AI.
Prioritize performance and responsiveness for an exceptional mobile experience.
Benefits
Collaborative, flat structure with direct access to founders.
Focus on high impact features that enhance user satisfaction.
Environment that encourages fast shipping without compromising quality.
Emphasis on user delight through clean and intuitive design.
Full Job Description
About the Role
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. If you excel in building high-quality, intuitive, and visually stunning apps, this role is for you. What You'll Do
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.
How We Work
We're early, fast, and ambitious. Every engineer has a direct line to product decisions and user impact. We optimize for:
User delight - clean, intuitive, responsive experiences.
Speed with quality - ship quickly without cutting corners on reliability.
High impact - focus on features that move the needle for users.
Collaboration - work directly with founders in a flat, high-trust environment.
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.
Bonus If You've...
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.
