Mobile Developer (iOS / Android)

Callstack

Wrocław. PL

26 min. temu

source : Just Join IT

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 act as a technology consultant and guide our clients through the most complex challenges of software development.

You will also have a chance to contribute to the open source community by working on challenging projects, speaking at conferences, and sharing your knowledge with the world.

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

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.

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.

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.

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