Senior Software Engineer, iOS

> 6 years of experience
Permanent contract
Mobile developer
Android
Kotlin

✨ About us

At Swile, we believe that good products can help reduce friction in daily professional life and boost employee satisfaction. Today, we provide innovative solutions in various areas such as Fintech, Travel, HR, and Employee Benefits to more than 5.5 million users in 85,000 companies in France and Brazil.

🔥 About the team and position

Senior Mobile Software Engineers for the iOS platform at Swile are responsible for delivering the best experience to all our end users and ensuring that our iOS app performs well even on older devices, remains secure, and is stable.
We also expect you to be able to deliver well-documented, tested, high-performance code in Swift and Objective-C, following best development practices and ensuring that everyone on your team does the same through code reviews, always aiming to improve the quality of your team's deliveries.

📈 Your day to day activities

We are looking for a Senior Software Engineer (iOS) with deep iOS expertise and hands-on Android experience to elevate both platforms and lead Swile Apps to the best possible user experience. You will own user-facing features end-to-end, raise the quality bar, and push the org to operate with a consistently high bar and high performance.

  • Own and ship iOS features from problem framing → design → implementation → rollout → measurement.
  • Set and enforce mobile quality targets (e.g., crash-free >99.9%, cold-start p95 down quarter over quarter, accessibility compliance, securite software).
  • Lead iOS architecture and standards (modularization, design system components, networking, telemetry).
  • Ship safely using feature flags, staged rollouts, server-driven config, kill switches, and clear rollback plans.
  • Instrument, monitor, and alert on critical journeys (errors, latency, jank, memory/battery, app size).
  • Drive cross-platform parity by defining shared foundations with Android/Web and closing experience gaps.
  • Accelerate others via design/code reviews, mentoring senior engineers, CI/build-time reductions, and clear docs.
  • Partner tightly with Product/Design/Data; prototype, experiment, and make decisions grounded in user signals.

⚒️ Requirements

  • 6+ years building large-scale iOS apps; track record of shipping high-impact user features.
  • Expert in Swift; strong SPM expertise; strong SwiftUI/UIKit and Objective-C interop; solid concurrency (async/await/GCD) and Instruments profiling.
  • Depth in networking (REST/GraphQL), offline/caching, secure storage (Keychain), privacy, and accessibility.
  • Proven release/quality engineering: XCTest/XCUITest/snapshot, CI/CD, staged rollouts, feature flags, and reliable rollback.
  • Hands-on Android (Kotlin) experience to design shared patterns and review cross-platform architecture.
  • Demonstrated org-level influence: multi-team designs, standards adoption, mentoring seniors, raising execution pace.
  • Crisp written/spoken communication; partners effectively with Product, Design, and Backend; data-driven decisions.
  • C1 English.

Minimum Requirements:

  • 6+ years building large-scale iOS apps; track record of shipping high-impact user features.
  • Expert in Swift; strong SPM expertise; strong SwiftUI/UIKit and Objective-C interop; solid concurrency (async/await/GCD) and Instruments profiling.
  • Depth in networking (REST/GraphQL), offline/caching, secure storage (Keychain), privacy, and accessibility.
  • Proven release/quality engineering: XCTest/XCUITest/snapshot, CI/CD, staged rollouts, feature flags, and reliable rollback.
  • Hands-on Android (Kotlin) experience to design shared patterns and review cross-platform architecture.
  • Demonstrated org-level influence: multi-team designs, standards adoption, mentoring seniors, raising execution pace.
  • Crisp written/spoken communication; partners effectively with Product, Design, and Backend; data-driven decisions.

Preferred Requirements:

  • Master's, PhD, or equivalent in Computer Science, Computer Engineering, or related fields.
  • Experience in Android development (Java & Kotlin) - cross-platform development.
  • C1 English.

💜 About our values: We are team players: we care about our colleagues and navigate well between areas.
🏋 We are doers: we have a high level of autonomy and deliver tangible results.
🏄 We move fast: we correctly identify priorities and take the initiative.
📣 We are ambassadors: we understand the market, the product, and are aligned around the same vision.
🍔 We stay hungry: we are resilient and enjoy learning and sharing knowledge.
🥰 We cherish our values: we set aside our egos and accept feedback as a gift.

💳 What we offer: Flexible benefits package super attractive for you to use as you wish (flexfood, mobility, culture, education, etc.) within the Swile card.
💸 Bonus.
🏠 Home-office allowance.
👩‍⚕️ Health and Dental Plan without co-payment.
💪 TotalPass (access to the best gyms and studios).
🗣️ English or French classes.
💊 Pharmacy assistance.
🧠 Emotional health (free therapy sessions with one of our partners).
💻 Full Remote Work.

We embrace and encourage diversity and inclusion in our team, so feel free to be who you are with us 🌈.

Reference :swile-lever+Swile-Senior-Software-Engineer-iOS

Skills

Mobile
iOS
Android
Objective C
Swift
Backend
Kotlin
Boost
Java
No code
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