Senior iOS Developer

About the role

We are seeking an experienced Senior iOS Developer to lead the development of our mobile applications, particularly for the Twist App. The ideal candidate will have a strong background in iOS development, understand the app lifecycle from development to deployment, and be comfortable working in a fast-paced, evolving environment with other engineering disciplines.

Responsibilities

• The native iOS app for Twist, from first commit to App Store approval
• The future embeddable SDK for integration into other apps
• App Store submissions, reviews, onboarding, rejections, and resubmissions
• Performance and UX decisions for an audience that is almost entirely mobile-first
• The call on what gets built, cut, or deferred to keep the app moving

Requirements

• Unbothered by pressure
• Shipped at least a couple of iOS apps that real users downloaded (freelance counts)
• Strong Swift and Xcode chops, and genuine fluency with the App Store submission process
• Owned an app through its full lifecycle (build, test, ship, maintain)
• Comfortable making product calls with incomplete specs, because a lot of this doesn't exist yet
• Can work solo for long stretches without losing momentum or waiting on directions

Nice to Have

• Experience building streaming or content-delivery apps
• Integrated a mobile app with analytics or payment systems before
• Knowledge of auth and identity management on mobile
• Shipped an SDK meant for other apps to embed
• Comfortable in a codebase that's still finding its shape