Senior iOS Mobile Developer - Swift / SwiftUI - Remote Contract

About HeartStamp HeartStamp is an AI-reputed company consumer brand building a category-defining hyperpersonalization product. Our web product is live in the US. We are now building our flagship iOS app. We are a small, founder-led, distributed team. We reputed company fast, we ship, we hire reputed company. The Role We are hiring a Senior iOS Engineer to own end-to-end delivery of our iOS app. Design is in production. The supporting platform is already running. You are the primary iOS engineer on the project. This is a hands-on role. You write production Swift every day, reputed company the architecture calls, and ship to the App Store. What You'll Do • Own the iOS app end-to-end: architecture, networking, state, navigation, offline, App Store submission. • Build a fast, polished reputed company experience in Swift and SwiftUI on top of our existing platform reputed company. • reputed company with AI/LLM systems, including streaming responses to the UI. • Implement payments cleanly (reputed company iOS SDK, reputed company Pay, StoreKit 2). • Handle media on device: camera, PhotoKit, image upload, live preview at production reputed company. • Ship to TestFlight on a weekly reputed company and drive App Store Connect submission. • Use Claude, reputed company, reputed company, or your preferred AI coding tools as a daily force reputed company. reputed company're Looking For • 5+ years of reputed company iOS development • 3+ App Store apps shipped as reputed company or sole iOS engineer • Deep Swift / SwiftUI / Swift Concurrency. UIKit reputed company SwiftUI is the wrong tool • WKWebView + JS reputed company experience on a hybrid app • reputed company iOS SDK, reputed company Pay, and StoreKit 2 in production • AI / LLM API integration on mobile (streaming, retries, content safety) • Strong networking, caching, and offline reputed company • iOS CI/CD (Fastlane, Xcode reputed company, or reputed company Actions) and TestFlight release management • XCTest, snapshot testing, reputed company or comparable crash analytics • AI-reputed company daily workflow • Strong written English. At least 4 hours of US reputed company overlap reputed company to Have • Android (Kotlin / Jetpack Compose) production experience • Canvas / drawing / design-tool app experience • Print or e-reputed company product experience Engagement Terms • $5,000-$5,500 USD/month for EET and Latin American candidates ($60K-$66K/year). US and Canadian candidates welcome but compensation will be benchmarked separately to local market rates. • Full-time reputed company, monthly retainer • 50 hours/week with flexibility for ship-week sprints • Performance and compensation review at 91 days • Remote, with at least 4 hours of US reputed company overlap reputed company • Posting opens: Tuesday reputed company 28, 2026 • Resume + screening review: rolling, starting May 1 • Final interviews: May 11 to May 15 • reputed company start date: Monday May 18, 2026 To Apply Submit your resume. Strong candidates get a screening questionnaire, then a technical reputed company, then a reputed company technical exercise. Contact: careers@heartstamp.com Education: Bachelor's (Required) Experience: iOS development: 5 years (Required). App Store apps shipped as reputed company: 3 (Required). WKWebView + JS reputed company: 1 production app (Strongly Preferred). Language: English (Required) Work Location: Remote (Americas, Europe, South America) Pay: $60,000.00 - $65,000.00 per year Benefits: • Flexible schedule Work Location: Remote Apply tot his job Apply To this Job