{"id":3402971,"url":"https://alion.io/job/kubo-international-android-developer-engineer","title":"Android Developer / Engineer","company":{"id":2051,"name":"Kubo International","domain":"kubo.international","url":"https://alion.io/company/kubo-poland-sp-z-o-o","size_band":"51-200","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Traffit","truth_index":{"grade":"B","score":80,"open_postings":7,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":13,"computed_at":"2026-10-31T05:58:55Z"}},"role":"Mobile","role_family":"Mobile","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Sweden"],"countries":["SE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Claude","optional":false},{"name":"Cursor","optional":false},{"name":"Kotlin","optional":false},{"name":"C++","optional":true}],"status":"live","first_seen_at":"2026-10-28T12:09:09Z","employer_posted_date":"2026-10-28","last_verified_at":"2026-10-31T19:05:49Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"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.\nYou 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.\nResponsibilities\nAt least 8 years of experience in Android development.\nIn-depth knowledge of modern Android development and Kotlin.\nDeep knowledge of Android architecture, design patterns and API design.\nA good understanding of how mobile applications interact with backend systems.\nExperience with real-time synchronisation and mobile performance optimisation.\nExperience optimising battery consumption, network usage and application performance.\nExperience using AI agent tools and agent-based development workflows, such as Cursor and Claude.\nNice to have\nExperience with C++.\nExperience with iOS development.\nExperience working across multiple platforms and codebases.\nRequirements\nDevelop and enhance user-facing Android features, including social feeds and near-real-time synchronisation.\nEvolve Android architecture and APIs to support scalable, reliable functionality.\nOptimise application performance, battery consumption and network usage.\nBuild solutions that meet high standards for privacy, security and abuse prevention.\nCollaborate with Android, iOS and backend engineers, as well as product, design and data science teams.\nLead initiatives spanning multiple teams and platforms when needed.\nBenefits\nWork model: Remote.\nWorkload: Full-time, 100%.\nContract type: B2B or a Regular Employment - 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