Senior iOS Engineer — Remote, Build Scalable Apps

JobCubby; Northern (KY); Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Remote work

Unlimited PTO

Paid national holidays

MacBook provided

Independent contractor option

Job summary

Ruby Labs is seeking a Senior iOS Engineer to build and maintain a high-quality mobile app with a strong focus on performance, UI, and user experience. You will collaborate with product managers and developers to ship features and optimize the app continuously.

You will use Swift, SwiftUI/UIKit, and modern concurrency patterns, while implementing CI/CD pipelines and ensuring code quality through reviews and testing. Remote-friendly collaboration and cutting-edge technology are supported.

Qualifications

• 5+ years of professional iOS development experience.
• Experience with B2C mobile apps built on subscription models.
• Expert proficiency in Swift with modern language features.

Responsibilities

• Develop and maintain a high-quality iOS app focused on performance, UI, and UX.
• Own development processes with clean, scalable code.
• Collaborate with product and other developers to launch new features.
• Implement CI/CD pipelines and deployment best practices.
• Conduct code reviews and enforce coding standards.
• Profile and optimize app performance (memory, launch time, rendering, battery).
• Stay up to date with iOS trends and integrate relevant advancements.

Skills

iOS development

Swift

UIKit & SwiftUI

StoreKit 2 & subscriptions

Combine/Swift Concurrency

CI/CD for iOS

XCTest / UI testing

Profiling & debugging

AI features integration

Analytics & crash reporting

Tools

Xcode Cloud

Fastlane

Bitrise

GitHub Actions

RevenueCat

Job description

Ruby Labs is seeking a Senior iOS Engineer to build and maintain a high-quality mobile app with a strong focus on performance, UI, and user experience. You will collaborate with product managers and developers to ship features and optimize the app continuously.

You will use Swift, SwiftUI/UIKit, and modern concurrency patterns, while implementing CI/CD pipelines and ensuring code quality through reviews and testing. Remote-friendly collaboration and cutting-edge technology are supported.