Backend Team Lead

Go

Backend Team Lead

Go
Senatorska 2, Warszawa

Rakuten Viber

Full-time
Any
Senior
Hybrid

Job 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’re looking for an experienced, highly motivated Backend Team Lead to join our Ads group and lead a team of talented senior backend developers responsible for developing and maintaining a high-traffic, low latency microservices-based system.


Responsibilities

  • Lead, mentor, manage and inspire a diverse agile team of backend developers across different locations, alongside hands-on coding

  • Actively participate in the design, development, and maintenance of backend systems and applications while analyzing business requirements to create scalable, high-performing, and testable solutions

  • Collaborate closely with product managers, client developers, scrum masters, and other stakeholders to deliver high-quality solutions

  • Effectively manage and integrate the contributions of a full-stack web developer within the backend team’s scope.


Requirements

  • At least 3 years of experience as a team leader

  • At least 8 years of hands-on experience in server-side development

  • At least 2 years of hands-on experience with Go lang

  • Proven experience in developing large-scale systems using cloud services and NoSQL databases (such as GCP orand AWS, Couchbase) 

  • Experience with microservices architecture, Docker, and container orchestration (e.g., Kubernetes) & CI/CD

  • Experience with Agile methodology

  • Ability to quickly understand complex systems and drive solutions.

  • Fluent in written and spoken English

  • Excellent spoken and written communication skills


Advantages

  • Direct experience with Ad Tech platforms (DSPs, SSPs, Ad Exchanges).

  • Experience with Vue.js or similar frontend frameworks

  • Experience with Java

  • Familiarity with observability tools and practices.

  • Experience working with remote teams

  • Advanced knowledge of unit testing frameworks and mocking

  • B.Sc. in Computer Science or equivalent

Tech stack

    English

    B2

    server-side development

    master

    Golang

    regular

    Team Leadership

    regular

    NoSQL

    regular

Office location

Published: 05.03.2026

Backend Team Lead

Summary of the offer

Backend Team Lead

Senatorska 2, Warszawa
Rakuten Viber
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