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Senior iOS Developer – AI/ML, Apple Health, and In-App Purchases
4 weeks ago
Overview Senior iOS Developer – AI/ML, Apple Health, and In-App Purchases. At H&N WORK, we create innovative, mission-driven products that improve lives through advanced mobile technology. We are a compact, agile team that values innovation, ownership, and high-quality execution. As our key iOS lead, you will define the architecture, drive technical decisions, and guide the mobile product strategy for years to come. About Us At H&N WORK, we create innovative, mission-driven products that improve lives through advanced mobile technology. We’re a compact, agile team that values innovation, ownership, and high-quality execution. As our key iOS lead, you will define the architecture, drive technical decisions, and guide the mobile product strategy for years to come. Responsibilities Lead the iOS architecture — choose frameworks, design patterns, and scalability strategies. Develop and maintain apps using Swift, SwiftUI, Combine, and async/await. Implement Apple HealthKit integrations for secure health/fitness data import and processing. Design and integrate StoreKit In-App Purchase flows (subscriptions, consumables, non-consumables) with full validation and analytics tracking. Deploy Core ML or TensorFlow Lite models for on-device AI/ML features such as personalization, prediction, and data analysis. Establish and enforce coding standards, architecture guidelines, and CI/CD best practices. Collaborate with product and design teams in an Agile/Scrum environment to plan and execute feature roadmaps. Integrate RESTful and GraphQL APIs with robust error handling and offline-first data strategies. Optimize performance using profiling tools and implement caching strategies for low-latency user experiences. Lead TestFlight testing, App Store submissions, and ensure compliance with Apple’s guidelines. Mentor and guide junior/mid-level iOS engineers; conduct code reviews and technical workshops. Qualifications 7+ years professional experience in iOS development, with 2+ years in a technical leadership or architecture role. Expert in Swift, SwiftUI, Combine, and async/await concurrency. Proven track record with Apple HealthKit integrations. Strong expertise with In-App Purchases using StoreKit, including subscription management and server-side receipt validation. Practical experience with Core ML, on-device AI/ML workflows, and data privacy best practices. Mastery of UIKit, Core Data, concurrency management, and offline-first application design. Experience with CI/CD for mobile (GitHub Actions, Bitrise, Jenkins). Strong Agile/Scrum experience and ability to work cross-functionally. Excellent problem-solving, communication, and mentorship skills. Nice-to-Have Skills Knowledge of Objective-C for legacy maintenance. Experience with Firebase, push notifications, deep linking, and analytics (Firebase Analytics, Amplitude). Familiarity with healthcare, wellness, or nutrition mobile apps. Cloud integration knowledge (AWS Amplify, Azure Mobile Apps, or custom APIs). What We Offer Full technical ownership of the iOS platform. Opportunity to design the long-term iOS architecture and technology stack. Work on impactful projects with state-of-the-art iOS technologies and AI/ML integrations. Flexible remote work culture and a collaborative team environment. Career growth path toward Mobile Architect or Head of Mobile Engineering. Details Seniority level — Mid-Senior level Employment type — Full-time Job function — Engineering and Information Technology Industries — IT System Custom Software Development Referrals increase your chances of interviewing at H&N Research Inc by 2x Get notified about new iOS Developer jobs in Canada. #J-18808-Ljbffr
