{"id":3965545,"url":"https://alion.io/job/exadel-senior-mobile-app-developer-android","title":"Senior Mobile App Developer (Android)","company":{"id":713122,"name":"Exadel","domain":"exadel.com","url":"https://alion.io/company/exadel-3","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":null},"role":"Mobile","role_family":"Mobile","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Poland"],"countries":["PL"],"hiring_countries":["PL"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Firebase","optional":false},{"name":"GraphQL","optional":false},{"name":"Jetpack Compose","optional":false},{"name":"Kotlin","optional":false},{"name":"Kotlin Coroutines","optional":false},{"name":"Kotlin Multiplatform","optional":false},{"name":"Rest API","optional":false},{"name":"CI/CD","optional":true},{"name":"Clean Architecture","optional":true},{"name":"Crashlytics","optional":true},{"name":"Dagger","optional":true},{"name":"Espresso","optional":true},{"name":"Fastlane","optional":true},{"name":"GitLab CI","optional":true},{"name":"Hilt","optional":true},{"name":"JUnit","optional":true},{"name":"MVVM","optional":true},{"name":"Robolectric","optional":true}],"status":"live","first_seen_at":"2026-11-09T13:26:49Z","employer_posted_date":"2026-11-09","last_verified_at":"2026-11-09T13:55:41Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Why Join Exadel\nWe’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.\nFrom AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.\nWhat powers it all? Our people are ambitious, collaborative, and constantly evolving.\nAbout the Client \nAn international transportation technology company focused on building scalable digital solutions for modern rail operations. The organization develops internal platforms and automation tools that improve operational efficiency, support business growth, and streamline complex processes in a fast-paced environment. \nTech Stack\nKotlin, Native Android Development, Jetpack Compose, Coroutines, MVVM, Clean Architecture, Kotlin Multiplatform (KMP), GraphQL, REST APIs, Firebase Remote Config, Crashlytics, Dagger/Hilt, Espresso, Robolectric, JUnit, GitLab CI/CD, Fastlane\nWhat You’ll Do\nDesign, develop, and maintain high-quality native Android applications\nContribute to the architectural foundations of a major transformation of client-facing mobile applications\nDesign and implement scalable, maintainable, and testable mobile solutions\nDrive technical improvements and contribute to architecture decisions\nCollaborate closely with iOS, Backend, and cross-functional teams\nExplore and contribute to Kotlin Multiplatform initiatives\nOptimize application performance, scalability, and user experience\nEnsure high engineering quality through testing and code reviews\nMentor and support other engineers within the team\nContribute to technical documentation and development best practices\nWhat You Bring\nStrong senior-level expertise in native Android development and Kotlin\nExperience with modern Android development, including Jetpack Compose and Coroutines\nStrong understanding of clean, scalable, and testable mobile architecture principles\nExperience contributing to mobile architecture design and improvements; previous involvement in architectural decisions or initiatives is a strong plus\nExperience with unit, integration, and UI testing\nOpenness and willingness to work with Kotlin Multiplatform (KMP)\nInterest in backend technologies and understanding how mobile applications interact with backend service\nStrong communication and collaboration skills\nExperience working in Agile environments\nNice to have\nHands-on experience with Kotlin Multiplatform (KMP)\nPrevious involvement in mobile architecture design or transformation projects\nExperience with GraphQL or REST API integrations\nKnowledge of Firebase tools and mobile analytics\nUnderstanding of UI/UX principles and mobile accessibility\nEnglish Level\nUpper-intermediate\nLegal & Hiring Information\nExadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more.\nReasonable accommodations are available to enable individuals with disabilities to perform essential functions.\nPlease note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs.\nCompensation details are shared with candidates at the early stage of the recruitment process.\nThe offer is not binding until a signed contract is in place.\nYour Benefits at Exadel \nExadel benefits vary by location and contract type. Your recruiter will fill you in on the details.\nInternational projects\nIn-office, hybrid, or remote flexibility\nMedical healthcare\nRecognition program\nOngoing learning & reimbursement \nWell-being program\nTeam events & local benefits \nSports compensation \nReferral bonuses \nTop-tier equipment provision\nExadel Culture\nWe lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. 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