
Mobile Engineer (iOS / Multiplatform)
Department:React Native
Type:REMOTE
Region:EU
Location:Warsaw, Mazowieckie, Poland
Experience:Mid-Senior level
Estimated Salary:PLN90,000 - PLN130,000
Skills:
SWIFTUIKITRXSWIFTMVVMKOTLIN MULTIPLATFORMIOS DEVELOPMENTMOBILE APP DEVELOPMENTGITCI/CD
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Job Description
Posted on: November 26, 2025
Weâre looking for a Senior Mobile Engineer who thrives at the intersection of native iOS development and cross-platform architecture. Youâll play a key role in integrating our Kotlin Multiplatform (KMP) core SDK into high-performance native Swift applications, shaping the next generation of secure and innovative mobile experiences. What Youâll Do
- Develop, maintain, and enhance native iOS applications built with Swift and UIKit.
- Integrate Kotlin Multiplatform shared modules into Swift-based codebases and ensure seamless interoperability.
- Collaborate closely with backend and Android engineers to evolve KMP shared architecture across the ecosystem.
- Lead improvements to app performance, maintainability, and architecture using MVVM, RxSwift, and related best practices.
- Contribute to design discussions and participate in code reviews to maintain high technical standards.
- Build and optimize frameworks and SDK integrations that will be used across multiple products.
What Weâre Looking For
- 4+ years of professional experience in mobile app development, primarily on iOS.
- Expertise in Swift, UIKit, RxSwift, and MVVM design patterns.
- Hands-on experience integrating Kotlin Multiplatform shared modules into native iOS applications.
- Knowledge of how to bridge Compose-based layers with native Swift codebases.
- Ability to navigate complex cross-platform build systems and dependency management.
- Familiarity with app architecture principles, CI/CD for mobile apps, and version control (Git).
- Strong collaboration and communication skills, with a focus on delivering well-tested, maintainable code.
Nice to Have
- Previous work on SDK-level development or modular app architectures.
- Experience with modern Android development (Kotlin, Compose).
- Knowledge of security-sensitive mobile SDKs or identity verification systems.
Originally posted on LinkedIn
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