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Position closed

iOS RTC Engineer

R&D, Warsaw, Poland, February 5 2025

Description

Rakuten Viber is one of the most popular and downloaded apps in the world. Working with us provides a unique opportunity to influence hundreds of millions of our users and to be part of the journey that makes us a super-app. Our mission is to make people’s lives easier by enabling meaningful connections, from precious moments with family and friends, through managing business relationships to pursuing their passions. 

We are a global team of engineers dedicated to creating the best tools to ensure safe, convenient communication for millions of users worldwide. Our culture is built on innovation, teamwork, and a commitment to excellence.

We invite the iOS developer to the RTC team. Our cross-platform team develops, analyzes and optimizes Viber calls.

Responsibilities

We invite a competent and proactive specialist who knows Swift, Objective-C, C++ that is interested in how the code is executed at the low level. While working with us, he will be engaged in research and development of various aspects of Viber calls on iOS platform:

  • WebRTC library integration and fine-tuning
  • Signaling protocol development
  • Media capturing and processing optimization
  • CPU/traffic/battery consumption optimization
  • Calls statistics gathering and analysis.

We expect that our candidate knows how to work in a team, carefully thinks out technical solutions, knows how to plan his time, correctly prioritize and needs minimal control.

Requirements

  • Deep knowledge of Swift and Objective-C: OOP, data structures, multithreading, interoperability
  • Experience with WebRTC, iOS CallKit and AVAudioSession
  • Understanding how a TCP/IP stack works
  • Intermediate+ level of English.

Advantages

  • Proficiency in C/C++, Java, Kotlin, JS/TypeScript, Bash, Python.
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About

At Rakuten Viber, we connect people–no matter who they are, or where they are from. As a communication platform that connects hundreds of millions of people around the world, we know that the way people communicate changes on an almost daily basis. That’s why we dedicate ourselves to providing added value to communication — from private and group chats to audio and video calls to the ability to follow and contact brands, businesses and celebrities. Viber is an all-in-one platform for everything communications-based, and all Viber communications are protected by end-to-end encryption. Viber is part of the Rakuten Group, a world leader in e-commerce and financial services