Rakuten Viber

Engineering Manager

Rakuten Viber

full-time

Posted on:

Location Type: Office

Location: Warsaw • Poland

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Job Level

SeniorLead

Tech Stack

JavaKotlinNode.jsObjective-CSwift

About the role

  • Work with high-performing engineers to deliver scalable, high-quality products.
  • Stay hands-on with backend development - developing, mentoring, reviewing, and guiding engineers through complex Java-based systems.
  • Drive execution of strategic product goals in partnership with Product, Business, and Senior Management.
  • Architect and evolve our infrastructure for performance, reliability, and scale.
  • Foster excellence - hire, coach, and grow world-class engineering talent.
  • Champion innovation, exploring new technologies (including AI-assisted development) to increase productivity and quality.
  • Measure and optimize system performance, scalability, and developer velocity.

Requirements

  • At least 8 years of backend development experience in Java - MUST
  • At least 3 years leading engineering teams - MUST
  • Proven experience in B2B/B2C communications platforms or API-driven businesses at scale - MUST
  • Hands-on experience with AI tools to boost developer productivity or product decision-making - MUST
  • Technical depth across both client and backend stacks (Java, C++, NodeJS, Kotlin, Swift, Objective-C)
Benefits
  • Health insurance
  • Paid time off

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
JavaC++NodeJSKotlinSwiftObjective-Cbackend developmentsystem performance optimizationscalabilitydeveloper velocity
Soft skills
mentoringleadershipcoachingteam buildinginnovationcommunicationstrategic executionguidancecollaborationfostering excellence