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Software Engineer (Android) - Service Agreement

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Software Engineer (Android) - Service Agreement in Others

  • Warsaw, Poland

Responsibilities

  • Design, develop, and maintain scalable, high-quality Android applications.
  • Improve post-booking and home page experiences across the Flix passenger journey.
  • Collaborate with iOS, Backend, and feature teams on specifications and cross-platform integration.
  • Drive architecture improvements, codebase modernization, performance optimization, accessibility, battery usage, memory management, and load-time improvements.
  • Use analytics and metrics to optimize application performance and user engagement.
  • Write clean, maintainable, testable code and implement unit, integration, and UI tests.
  • Improve CI/CD pipelines, application stability, and release processes.
  • Maintain technical documentation, including API specifications, architectural decisions, and code comments.

Requirements

  • At least 6 years of Android development experience building user-facing Android applications.
  • Strong Kotlin expertise, including Jetpack Compose, MVVM, and Coroutines.
  • Hands-on experience with Android performance optimization, background services, memory management, UI, and animations.
  • Experience with unit, integration, and UI testing.
  • Ability to drive technical strategy and maintain high standards for code quality, performance, and scalability.
  • Understanding of SOLID principles and software architecture patterns.
  • Experience with CI/CD pipelines and automated deployment systems using GitLab, Fastlane, and Docker.
  • Experience with Firebase SDK, including Firebase Analytics, Remote Config, and Crashlytics.
  • Customer-centric approach focused on delivering strong user experiences.

Benefits

  • Freelance/service agreement on a B2B basis rather than an employment contract.
  • Independent-contractor arrangement with responsibility for delivering agreed services and submitting invoices.
  • Open to contractors based in Poland.

Flix

Flix builds a travel-tech platform and consumer apps that sell intercity bus and rail tickets under FlixBus, FlixTrain, Greyhound, and Kamil Koç. It uses an asset-light model, partnering with local operators while handling network planning, pricing, and marketing to connect travelers in 40+ count...

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