Senior iOS App Developer – Backend Scalability

BlueSky Ventures

Contract · Flexible hours

About the role

We are seeking a senior iOS App Developer to lead the development of a high‑performance mobile application that will serve thousands of users. The project focuses on building a robust, scalable client that integrates with existing backend services and delivers a seamless user experience.

Key responsibilities

• Architect and implement core iOS features using Swift and modern design patterns.
• Integrate RESTful APIs, handle authentication, and manage data synchronization.
• Optimize app performance, memory usage, and battery consumption.
• Collaborate with UI/UX designers to translate designs into responsive interfaces.
• Write unit and UI tests to ensure code quality and reliability.
• Maintain documentation and provide technical guidance to junior developers.

Must-have skills

• 5+ years of professional iOS development experience.
• Deep expertise in Swift, UIKit, and SwiftUI.
• Proven ability to work with REST APIs and JSON parsing.
• Strong understanding of iOS architecture (MVC, MVVM, Clean).
• Experience with version control (Git) and CI/CD pipelines.

Nice to have

• Familiarity with Combine or RxSwift.
• Experience publishing apps to the App Store.