Full Stack Engineer

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’re looking for an experienced, highly motivated Web Full Stack Developer to join our team. As such, you will be responsible for design and development of Viber features. We offer many interesting and challenging tasks that will allow you to extend your technical abilities delivering the product of the highest quality to our users.

Hybrid work mode in Warsaw (office+home).

Responsibilities:

• Implement new features and support the entire application lifecycle, including concept, design, test, release, and support phases
• Strongly cooperate with our product and design teams to implement their vision and user experience into code
• Contribute to building our engineering team: participate in technical reviews, architecture, design systems
• Test your own code. You will debug, optimize, unit/regression/cross-platform test your work.
  
  

Requirements:

• At least 4 years of experience as a full stack engineer
• Strong knowledge in the following technologies: Angular, Angular-material, React knowledge
• Strong knowledge in either of the following technologies: PHP or Node.js
• Strong proficiency in JavaScript, TypeScript, HTML, CSS and SASS
• Experience with REST APIs and integrating with backend services, understanding caching and offline storage
• Knowledge of CI/CD pipelines and deployment processes. Experience with Docker
• Ability to implement unit and end-to-end tests, experience in implementation of A/B tests
• Experience with microservices development and architecture
• Experience with Agile methodology
• Fluent in written and spoken English
• Experience leveraging AI tools to enhance productivity or decision-making is a strong advantage.
  
  

Advantages:

• Experience with other backend languages such as Go or Java
• Experience with data-fetching libraries for web applications (RTK Query / React Query / etc.)
• Experience with validation libraries (Zod / Yup / etc.)
• Experience with react-hook-form or similar form management libraries
• Experience with i18n
• Experience with Redux-Saga
• Advanced knowledge of unit testing frameworks and mocking
• Experience with AWS cloud
• Experience with Next.js
• Experience working with distributed teams
• B.Sc. in Computer Science or equivalent.