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 7–8+ years of native iOS development experience Proven track record of delivering 2–3+ 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 #J-18808-Ljbffr Datamaxis