iOS App Developer for Mobile Auth Overhaul Rollout

Silverline Labs

Contract · 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 craft native modules, ensure data sync, and deliver a seamless user experience across the ecosystem.

Key responsibilities

• Design and implement Swift code to consume REST APIs from billing and CRM systems
• Build reusable networking layers and handle authentication flows
• Collaborate with backend engineers to define data contracts and error handling
• Write unit and UI tests to guarantee stability during integration cycles
• Optimize app performance for low‑latency data updates

Must-have skills

• Strong proficiency in Swift and iOS SDK
• Experience integrating multiple REST APIs in a production app
• Understanding of async patterns, Combine or async/await
• Version control with Git and CI basics

Nice to have

• Familiarity with CRM platforms such as Salesforce or HubSpot
• Knowledge of payment gateway integrations
• Experience with automated testing frameworks like XCTest