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:
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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
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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
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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
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Certificates & provisioning
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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
