Android Developer

Android Full-Stack EngineerHybrid 4 Days On-Site Dearborn MI12+ Month Contract$50-70/HRPosition Description: We are seeking an experienced Android Full-Stack Engineer to join our platform stability team. In this role, you will be responsible for diagnosing, debugging, and resolving complex Android stability issues spanning the entire Android stack—both above and below the Treble boundary. You will work deep within Android framework internals, reverse-engineering issues from source code, providing technical direction for ambiguous problems, and ensuring overall platform robustness across Android version upgrades. This is a hands-on engineering role for someone who thrives on solving the hardest, least-understood problems in the Android ecosystem.Key Responsibilities:Design and develop middleware and Android background services for platform-level functionalityDebug and reverse-engineer complex issues directly from Android Open Source Project (AOSP) source codeOwn overall Android platform stability and reliabilityResolve Android upgrade and integration issues across releasesDiagnose and fix bugs in system_server components (Activity Manager, Window Manager, Package Manager, etc.), Car Service, and SurfaceFlingerInvestigate and resolve black screen, boot failure, and ANR (Application Not Responding) issuesResolve and provide technical direction and root-cause analysis for unknown or hard-to-reproduce issuesAddress and resolve compliance test failures across CTS, VTS, ATS, and STSSkills Required:Kotlin – Candidate should be able to write and maintain Kotlin-based Android background services and middleware components and be comfortable working within Kotlin code in the Android framework/system_server layer (e.g., modifying or extending services like Activity Manager, Package Manager) as part of resolving platform stability issues.C++ – Candidate should have hands-on experience debugging and modifying native Android components (e.g., SurfaceFlinger, HAL layers, vendor partition code) in C++, including reverse-engineering issues directly from AOSP native open source code.Java – Candidate should be able to read, debug, and modify Java-based Android framework code (system_server internals such as Window Manager, Activity Manager) to diagnose and resolve issues like ANRs, boot failures, and black screens, including designing AIDL/Binder interfaces exposed to applications.Experience Required:3+ years of hands-on Android platform/framework development experience.Proven experience in designing and developing middleware and Android background services (long-running/foreground service) that expose feature-rich interfaces (AIDL/Binder, APIs) to applications.Demonstrated track record of resolving complex, low-level Android stability issues.Experience contributing to or modifying AOSP source code.Proven experience working across the full Android stack (framework, native services, vendor layers).Education Required:Bachelor's DegreeEEO EmployerApex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.