Job Description

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:

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  Drive development from requirements to production within a 5-month delivery timeline
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  Have deep expertise in Swift, SwiftUI, and modern concurrency (async/await)
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  Be experienced in secure authentication (OAuth/MSAL) and performance optimization
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  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

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

2. Architecture & Code Quality

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

3. Agile Collaboration

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

Minimum Qualifications

Professional Experience

• 7–8+ years of native iOS development experience
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  Proven track record of delivering 2–3+ apps end-to-end (concept to App Store)

Technical Expertise

Core Development

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

Architecture

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

Security & Integration

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

Performance & Tools

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

Project Execution

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

Additional Responsibilities

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