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Location
In office (Sweden)
Seniority
Staff · 8+ years exp

Confirmed on the employer's own hiring board on Oct 30, 2026. First seen by Alion on Oct 28, 2026. Kubo International scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Kubo International is a Polish IT and engineering services company that supplies software engineers, testers and other specialists to client projects, including C++ development, automotive test and development engineering and Microsoft 365 administration. It holds ISO 27001, 9001 and 14001 certifications and recruits for roles in Gdańsk, Katowice, Warsaw and other Polish cities. The company is headquartered in Toruń, Poland.

Our client is a global music and audio streaming platform. We are looking for a Senior Android Engineer for a consulting assignment focused on developing social and real-time features in its large-scale consumer application.

You will work on user-facing Android features, social feeds and near-real-time synchronisation. You will also help evolve the underlying architecture and APIs, with a strong focus on performance, network efficiency, battery consumption, scalability and quality.

Responsibilities

  • At least 8 years of experience in Android development.
  • In-depth knowledge of modern Android development and Kotlin.
  • Deep knowledge of Android architecture, design patterns and API design.
  • A good understanding of how mobile applications interact with backend systems.
  • Experience with real-time synchronisation and mobile performance optimisation.
  • Experience optimising battery consumption, network usage and application performance.
  • Experience using AI agent tools and agent-based development workflows, such as Cursor and Claude.

Nice to have

  • Experience with C++.
  • Experience with iOS development.
  • Experience working across multiple platforms and codebases.

Requirements

  • Develop and enhance user-facing Android features, including social feeds and near-real-time synchronisation.
  • Evolve Android architecture and APIs to support scalable, reliable functionality.
  • Optimise application performance, battery consumption and network usage.
  • Build solutions that meet high standards for privacy, security and abuse prevention.
  • Collaborate with Android, iOS and backend engineers, as well as product, design and data science teams.
  • Lead initiatives spanning multiple teams and platforms when needed.

Benefits

  • Work model: Remote.
  • Workload: Full-time, 100%.
  • Contract type: B2B or a Regular Employment - up to your preference.
  • Assignment period: 6 months, with a possibility of extension.
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