Full-Stack Engineer (iOS)

Role Overview

Hands-on Full-Stack Engineer (iOS) to improve, stabilize, and modernize an existing native iOS app in production (1M+ downloads). You’ll work across native iOS development, backend/API integrations, and engineering process improvements—enhancing features while increasing structure, reliability, and maintainability.

Responsibilities

• Maintain and improve the native iOS app written primarily in Swift
• Refactor legacy code to improve stability, readability, and long-term maintainability
• Work across integration points, including:
  • REST APIs and API authentication
  • Real-time messaging (e.g., WebSockets/Socket.IO)
  • Payments and in-app purchases
  • Third-party SDKs
• Troubleshoot and optimize performance, crashes, and other production issues
• Modernize app architecture, development workflow, and the release process
• Establish and enforce Git-based version control best practices:
  • Branching strategies
  • Pull requests and code reviews
  • Release tagging
  • Migrate parts of the codebase into a clean Git workflow if needed
• Improve testing discipline, build reliability, and deployment readiness

Requirements

• Strong Swift and native iOS development experience
• Experience building/maintaining production apps with API integrations and third-party SDKs
• Solid backend understanding, especially:
  • REST APIs and authentication flows
  • Web services and data exchange
• Experience with real-time systems such as WebSockets or Socket.IO
• Familiarity with:
  • Firebase (analytics, push notifications)
  • Google Sign-In and Facebook Login
  • In-app purchases
• Strong Git experience (repo setup, branching, merge conflict resolution, PRs, release management)
• Ability to incrementally improve a legacy codebase without breaking production behavior
• Strong debugging and problem-solving skills

Nice to Have

• Experience with CocoaPods and dependency upgrades
• Experience modernizing older iOS apps and improving architecture
• Familiarity with CI/CD for mobile apps
• Experience with App Store releases and production support
• Exposure to test automation for iOS apps

What Success Looks Like

• Easier-to-maintain, safer-to-extend codebase
• More stable key flows: login, chat, payments, and profile/account
• Proper Git organization with a clear team workflow
• More predictable releases with better review and change tracking
• Reliable scaling for a live user base (1M+ downloads)