iOS App Developer for Mobile App Backend Engagement

Silverline Labs

Freelance · Remote · Flexible hours

About the role

Silverline Labs is launching an integration project that ties together billing, CRM, and internal APIs. We need an iOS App Developer to build a seamless client‑side experience that consumes these services reliably.

Key responsibilities

• Design and implement Swift UI components that interact with REST endpoints
• Integrate authentication flows across billing and CRM systems
• Write clean, testable code and unit tests for API interactions
• Collaborate with backend engineers to define data contracts
• Debug and optimize network performance on iOS devices

Must-have skills

• Strong proficiency in Swift and iOS SDK
• Experience building REST API clients
• Understanding of OAuth2 or similar authentication mechanisms
• Ability to work independently in a remote freelance setting

Nice to have

• Familiarity with Combine or RxSwift for reactive programming
• Previous work on billing or CRM integrations
• Knowledge of CI/CD pipelines for iOS apps