Mobile app developer

Company Overview

We are a forward-thinking company that leverages technology to deliver top-notch services to our clients. We are looking to expand our team with a skilled Mobile Developer experienced in both Android and iOS platforms, proficient in Kotlin and fluent in English and German.

Job Description

We are seeking an experienced Mobile Developer to design and implement new user-facing features in our mobile applications. The successful candidate will be able to build high-quality, innovative, and fully performing software in compliance with coding standards and technical design.


  1. Develop and maintain high-quality mobile applications for both Android and iOS using Kotlin.
  2. Collaborate with UX/UI designers to implement design into the code.
  3. Diagnose performance issues, fix bugs, and improve application performance.
  4. Stay up-to-date with new technology trends, applications, and protocols.
  5. Work closely with the product team to build new features and infrastructure.
  6. Develop application programming interfaces (APIs) to support mobile functionality.
  7. Suggest and implement new mobile products, applications, and protocols.
Programming Languages
  • Java or Kotlin (primary languages for Android development)
Android SDK and Libraries
  • Android SDK (Android Software Development Kit)
  • Android Support Libraries
  • Android Architecture Components
  • Google Play Services APIs (e.g. Maps, Location, Firebase)
Integrated Development Environment (IDE)
  • Android Studio (official IDE for Android development)
UI/UX Development
  • XML (markup language for Android layouts)
  • Android UI Toolkit (widgets, views, layouts)
  • Material Design (design language by Google)
Backend Development
  • RESTful APIs (communication protocol)
  • Retrofit (library for API consumption)
  • OkHttp (library for network requests)
  • Firebase (BaaS platform)
  • SQLite (local database for mobile devices)
  • Room Persistence Library (ORM for SQLite)
Development Tools
  • Git (version control system)
  • Gradle (build system for Android Studio projects)
  • Android Debug Bridge (debugging tool)

What We Offer

  1. Competitive salary 180-200 pln/h B2B
  2. Opportunities for professional development and advancement.
  3. A dynamic and inclusive work environment.
  4. Flexible work schedule and remote work opportunities.
  5. A chance to be part of an innovative team focused on excellence and continual learning.