Senior Software Engineer (C++ & TypeScript for Calls infrastructure)
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.
We invite a competent and proactive specialist who knows C++ and JavaScript. While working with us, he will be engaged in research and development of various aspects of Viber calls on Desktop:
- signal protocol development
- media capturing and processing optimization
- network bandwidth optimization
- gathering and analysis of Viber call statistics.

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.

Primary requirements:
- Experience with C++ and JS at least 5 years
- Knowledge of TCP/IP network stack
- Work experience with STL and Boost (Any, Array, Bind, Format, Multi-index, Optional, Tribool)
- Intermediate level of English.

Will be a plus:
- Work experience with WebRTC, Qt, Chromium.
- Ability to read the code written in Java, Kotlin, Swift, Objective-C, TypeScript, Bash.
- Some Linux experience.
- Full time job. We're working in hybrid mode, from home and the office.