iOS App Developer – Secure API Design

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 create seamless data flows and ensure the mobile experience reflects real‑time backend updates.

Key responsibilities

• Design and implement Swift modules that consume REST APIs from billing and CRM systems.
• Coordinate with backend engineers to map data contracts and handle authentication.
• Write unit and UI tests to guarantee reliability across integration points.
• Optimize network calls for performance and low latency on various iOS devices.
• Document integration patterns and contribute to shared code libraries.

Must-have skills

• Strong proficiency in Swift and iOS SDK.
• Hands‑on experience building and consuming REST APIs.
• Understanding of authentication mechanisms (OAuth, JWT).
• Ability to work independently in a remote, contract setting.

Nice to have

• Familiarity with CI/CD pipelines for iOS.
• Experience integrating third‑party billing or CRM platforms.