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September 2, 2026

Kotlin Multiplatform Developer

Senior • On-site

20,160 - 25,200 PLN/yr

Warsaw, Poland

About the Role

We are looking for a Kotlin Multiplatform Developer to design and deliver modern cross-platform applications. You will be responsible for building shared business logic and data layers, integrating solutions across Android and iOS, and contributing to architecture and technical standards.

Requirements

  • 5+ years of software development experience
  • 2+ years of commercial Kotlin experience
  • 1+ year of hands-on Kotlin Multiplatform (KMP) experience
  • Experience delivering at least one production-grade multiplatform application
  • Strong knowledge of Kotlin, Coroutines and Flow
  • Strong knowledge of Kotlin Multiplatform (KMP)
  • Strong knowledge of Android: Jetpack Compose, ViewModel, Hilt/Koin
  • Strong knowledge of iOS integration with Swift/SwiftUI
  • Strong knowledge of Clean Architecture and MVVM/MVI
  • Strong knowledge of REST APIs and GraphQL
  • Strong knowledge of unit and integration testing
  • Strong knowledge of Gradle and CI/CD (GitHub Actions or GitLab CI)

Nice to Have

  • Compose Multiplatform
  • Ktor
  • Kotlin/JS or WebAssembly
  • Advanced CI/CD knowledge
  • Domain-Driven Design (DDD)

What We Offer

  • Hybrid work model: 4 days per month from the Warsaw office
  • Medicover private healthcare
  • Multisport card
  • Group life insurance

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