Senior iOS Engineer

SimpleStudy is a consumer AI platform for students.
We help them stay motivated to study their subjects - everything from Biology and Mathematics to Literature and Art.
Our small team has already helped +1.5 M students worldwide (UK, Ireland, Brazil, South Africa, and Australia) study better, and ~40–50k new students join us every week.
We are a remote team with a Lisbon office, having recently raised ~$4M seed round with incredible investors from Strava, OpenAI, and Meta.

• Own the mobile app end-to-end — architecture, performance, release process, and roadmap — without needing the problem framed in advance

• Partner directly with Affan on engineering strategy and with Oisin on product direction where mobile intersects with growth, onboarding, and retention

• Drive native-feel polish: smooth animations, responsive interactions, platform-specific conventions (iOS/Android)

• Work in a PLG/A/B testing environment — ship features, instrument, measure impact, iterate fast

• Own app store presence and release cadence — versioning, store optimization, crash/performance monitoring

• Potentially help grow a dedicated mobile team as the app becomes a bigger part of the business

• At least 5 years of experience with native iOS development

• Proficiency in Swift

• Proven experience building and shipping consumer-grade iOS applications

• Experience with SwiftUI and UIKit

• Familiarity with iOS frameworks and tools such as Combine, push notifications, and

• App Store deployment

• Experience with Xcode, XCTest, TestFlight, and App Store Connect

• Experience with common iOS architecture and state management patterns

• Experience with debugging, performance optimization, and crash monitoring

• Bonus: Objective-C experience

• Bonus: Android development (Kotlin)

• Remote in Europe (preference: Western/continental Europe)

• Portugal relocation sponsorship possible

• Salary: no fixed budget. Flexible.

• Stock options: yes

• Contract type: full-time employment, independent contractor

• Tech Stack: Node.js, React.js, React Native, Next.js, Nest.js, Expo, Prisma, Tailwind, AWS