Senior Native iOS Developer

Job Summary

We are seeking a Senior iOS Developer (Contractor) for a high-impact 6-month engagement to design build and launch a robust native iOS application.

The ideal candidate will:

• Drive development from requirements to production within a 5-month delivery timeline
• Have deep expertise in Swift SwiftUI and modern concurrency (async/await)
• Be experienced in secure authentication (OAuth/MSAL) and performance optimization
• Thrive in a fast-paced Agile environment with high technical standards

This is a hands-on execution role for a developer who excels in delivering high-quality applications under tight deadlines.

Key Responsibilities

1. Development & Delivery

• Develop and deploy production-ready iOS features using Swift SwiftUI and UIKit
• Implement modern concurrency (async/await) for responsive UI and background processing
• Design and integrate secure authentication flows (OAuth MSAL SSO)
• Build scalable networking layers for RESTful API integration
• Implement efficient data handling and local caching

2. Architecture & Code Quality

• Design modular scalable applications using MVVM or Clean Architecture
• Perform advanced debugging and optimization using Xcode Instruments (Time Profiler Leaks)
• Ensure code quality through peer reviews and best practices
• Follow Apple Human Interface Guidelines for UI/UX standards

3. Agile Collaboration

• Participate in Agile ceremonies (stand-ups sprint planning retrospectives)
• Identify and resolve technical debt and bottlenecks proactively
• Maintain clear technical documentation for architecture and authentication
• Ensure smooth handoff post-contract

Minimum Qualifications

Professional Experience

• 78 years of native iOS development experience
• Proven track record of delivering 23 apps end-to-end (concept to App Store)

Technical Expertise

Core Development

• Expert in Swift (latest versions) SwiftUI and UIKit
• Strong experience with async/await and multi-threading

Architecture

• Hands-on experience with MVVM or Clean Architecture
• Ability to build scalable maintainable applications

Security & Integration

• Experience with OAuth MSAL and SSO-based authentication
• Strong background in REST API integration
• Experience with data persistence (Core Data / SwiftData)

Performance & Tools

• Expertise in Xcode Instruments (Time Profiler Leaks Network)
• Experience with:
  • Git-based version control
  • CI/CD tools (GitHub Actions Bitrise Xcode Cloud)

Project Execution

• Strong experience in Agile/Scrum environments
• Ability to manage tight deadlines and changing priorities
• Experience with:
  • App Store Connect
  • Certificates & provisioning
  • Apple review process

Additional Responsibilities

• Ensure compliance with security best practices (Keychain secure APIs)
• Manage TestFlight releases and versioning
• Collaborate with backend/design teams for API & UI optimization
• Conduct code reviews and mentor junior developers
• Identify and mitigate technical and delivery risks proactively