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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior iOS Engineer, Member Experience - **Company:** Raya App, Inc. - **Location:** United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Abstraction Layers, Artificial Intelligence, App Store (IOS), Code Review, Mobile Application Software, Model View ViewModel, Performance Tuning, Uikit, Swiftui, Ios Frameworks, Swift (Programming Language), Backend, Reactive Programming - **Published:** September 17, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=c8e8418291385229 ## About the Role * 7+ years of professional iOS development experience, with strong proficiency in Swift, UIKit, MVVM, and reactive programming. * Expert-level, hands-on Apple StoreKit2 experience: you have built and operated StoreKit2 integrations end to end at least twice in production, owning product configuration, purchase and restore flows, Transaction.updates, current entitlements and subscription status, introductory / promotional / win-back offers, offer codes, and sandbox-through-production testing. * Direct, native StoreKit2 integration experience and depth that goes beyond consuming a third-party abstraction layer. You can reason about the framework itself. * Production Stripe Payments/Subscriptions experience for a B2C product (secondary to Apple, but required). * Experience collaborating with a server team on subscription correctness including App Store Server Notifications V2, signed transaction verification, reconciliation, and idempotent handling of duplicate events. * A track record of building and shipping consumer mobile applications to scaled audiences, with strong judgment on architecture, performance optimization, and user experience. * Strong consumer product sense and the ability to partner effectively with product, design, and data on revenue-affecting work. * Proven ability to lead projects from concept through launch, balancing speed and quality, and to own what you ship after it ships. * An AI-forward mindset, with curiosity about applying emerging technologies to improve developer and product experiences., * Experience running a subscription product across two payment processors simultaneously, with a single active entitlement per member. * Familiarity with SwiftUI alongside UIKit, and with modularizing a large iOS codebase. * Experience with paywall and pricing experimentation frameworks, and with subscription analytics. ## Description This is a payments specialist role, not a generalist iOS role with some payments attached. The person we hire has built and operated native Apple StoreKit2 integrations more than once, with total depth and ownership - they wrote the integration, shipped it, and were still there when the edge cases showed up. They also bring production Stripe experience for a consumer product. They will work as a close peer to our server team, which owns App Store Server Notifications V2, entitlement source of truth, and reconciliation., * Own the iOS subscription and payments stack end to end from product configuration, purchase and restore flows, entitlement state, offers, to the paywall surfaces members see. * Serve as the client-side authority on StoreKit2: architect the integration, set the patterns, and handle the lifecycle edge cases. Including interrupted and deferred purchases, upgrades, downgrades, crossgrades, refunds, revocations, billing retry, and price increase consent. * Partner closely with the server team on entitlement correctness, working across the client/server boundary on signed transaction verification, reconciliation, and idempotency so that what the app shows and what the backend believes never diverge. * Work with product, design, and data on pricing, offers, and paywall experimentation. Scoping and shipping revenue-affecting work from concept through launch and measurement. * Contribute broadly to a large, long-lived iOS codebase: architecture and system design, performance, testing practices, and deliberate management of tech debt. * Act as the client-side escalation point for member payment issues, with the monitoring and release discipline to catch problems before members do. * Raise the engineering bar through code review, technical mentorship, and clear written specs. ## Related Videos - [SwiftUI In Production](https://www.wearedevelopers.com/videos/134-swiftui-in-production) - [From Zero to Mobile Developer in 45 Minutes With SwiftUI](https://www.wearedevelopers.com/videos/183-from-zero-to-mobile-developer-in-45-minutes-with-swiftui) - [Mobile at a Crossroads: The Declarative UI App Revolution](https://www.wearedevelopers.com/videos/207-mobile-at-a-crossroads-the-declarative-ui-app-revolution) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Unsolved mysteries between Usability and Accessibility in iOS](https://www.wearedevelopers.com/videos/737-unsolved-mysteries-between-usability-and-accessibility-in-ios) - [Xcode development redefAIned](https://www.wearedevelopers.com/videos/100195-xcode-development-redefained) ## Related Articles - [A Guide to Choosing the Right Tools for App Developers](https://www.wearedevelopers.com/magazine/391-a-guide-to-choosing-the-right-tools-for-app-developers) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Basic And Advanced Networking in Dart and Flutter](https://www.wearedevelopers.com/magazine/112-basic-and-advanced-networking-in-dart-and-flutter) - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [Cross Platform Mobile Development Frameworks to Use in 2025](https://www.wearedevelopers.com/magazine/404-cross-platform-mobile-development-frameworks-to-use-in-2025) - [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025)