All offersWrocławMobileMobile Developer (iOS / Android)
Mobile Developer (iOS / Android)
Mobile
Callstack

Mobile Developer (iOS / Android)

Callstack
Wrocław
Type of work
Undetermined
Experience
Senior
Employment Type
B2B
Operating mode
Remote
Callstack

Callstack

Callstack provides top cross-platform consultancy & development in React Native and React.js. We co-create and shape the technology as core contributors and innovators. Our main goal is to drive and accelerate software development innovation.

Company profile

Tech stack

    iOS
    advanced
    Android
    advanced
    Java
    regular
    Kotlin
    regular
    Swift
    regular
    Objective-C
    regular

Job description

Callstack is a software development company and a top global contributor to React Native - a Facebook Open Source framework for building web and mobile applications, using a hybrid approach - write once, run on many platforms at the same time.

We are leading the innovation on cross-platform technologies in order to make the software more accessible to everyone, worldwide. We don’t follow best practices, we set them by being at the forefront of everything React Native. We collaborate daily with the Facebook team on setting the direction for the future growth of the framework and support industry leaders all around the world to ship better mobile products to their users.

We are looking for an experienced Mobile Developer (iOS/Android) to join our team. In this role you will have a unique possibility to act as a speaker on Callstack podcast auditions and React Native EU conferences. You will have a chance to share your expertise on Callstack blog and open-source community. Join us and work with the TOP Silicon Valley and Fortune 500 companies in the USA.

Responsibilities:

  • Develop and architect hybrid mobile applications using native languages and React Native
  • Implement features and resolve different types of issues in React Native
  • Improve capabilities of integration and communication between React Native and the native apps
  • Work in the team with JS / React Native developers and provide guidance on best patterns in native development
  • Define potential optimizations for resources usage in applications
  • Contribution to Open Source frameworks, including React Native, React Native Windows

Minimum Requirements:

  • Proficiency in Java & Kotlin
  • Extensive knowledge of Android Jetpack & Android SDK
  • Knowledge of Android design patterns and best practices
  • Understanding of declarative programming
  • Little experience with JavaScript

OR

  • Proficiency in Swift & Objective-C
  • Extensive knowledge of Cocoa Touch & iOS SDK
  • Knowledge of iOS design patterns and best practices
  • Understanding of declarative programming
  • Little experience with JavaScript

Ideal Requirements

  • Proficiency in native iOS and Android programming languages
  • Extensive knowledge of Cocoa Touch, iOS SDK, Android Jetpack & Android SDK
  • Knowledge of mobile design patterns and best practices
  • Experience with JavaScript
  • Understanding of declarative programming
  • General knowledge of React & React Native

What we offer:

  • Working together with core contributors to several open-source projects such as React Native and Jest.
  • We precisely define the directions of individual development and support you in their implementation. Your development is our success!
  • Private healthcare for you and your family - we do care about your health and well-being.
  • Co-financed Multisport Card or monthly allowance for other gym and sports activities - you choose!
  • A monthly lunch allowance to compensate for free lunches available in our office.
  • Fully-covered life insurance.
  • 24 paid days off and paid sick leave for B2B contractors.
  • Accounting costs refund for B2B contractors.
  • Grat office in the city center 
  • This job is possible 100% remotely 
  • Flexible working hours.
  • Individual self-development budget.
  • Top-notch hardware - MacBook Pro, monitor, and peripheral devices.
  • Recurring team events - workation, weekend ski rides, cooking workshops, board games nights, and parties.
  • Free entry for React Native EU conference. We will also support your participation in other international tech conferences and workshops.