Senior Android Engineer

N-iX is looking for an experienced, proactive, and ambitious Senior Android Developer to join our team and contribute to the development and evolution of a native Android application. Main Responsibilities: • Design, develop, and maintain a high-quality native Android application • Take ownership of features throughout the entire development lifecycle—from requirements analysis and technical design to delivery and production support • Collaborate closely with UX/UI, QA, iOS, Product Management, Product Owners, and other engineering teams to align on requirements and specifications • Understand existing application workflows, improve them where necessary, and support legacy functionality • Act as a Subject Matter Expert in Android application development and maintenance • Collaborate with the Mobile Architect and the development team on technical decisions, application architecture, roadmaps, and new features • Investigate and resolve complex technical and production issues • Conduct code reviews, promote engineering best practices, and share knowledge with other team members • Mentor less-experienced developers and support their professional growth • Analyze requirements, provide estimates, identify technical risks, and propose appropriate solutions • Contribute to the development of simple, modular, maintainable, observable, and well-tested systems that can evolve over time • Help improve development processes, CI/CD pipelines, application quality, performance, and release stability Role Requirements: • 6+ years of professional Android development experience • Strong knowledge of Kotlin and practical experience with Java • Strong knowledge of Kotlin Coroutines, Flows, asynchronous programming, and concurrency • Experience with modern Android SDKs, Android Jetpack components, application lifecycle, and Material Design • Experience with Jetpack Compose and/or XML-based UI development • Strong understanding of Android application architecture, including MVVM, MVP, and Clean Architecture principles • Good knowledge of SOLID principles, software design patterns, modularization, and testable application design • Experience with dependency injection frameworks such as Koin, Hilt, or Dagger • Hands-on experience with Bluetooth Low Energy, including BLE/GATT communication, connectivity, and troubleshooting • Experience with networking and local data persistence, such as REST APIs, OkHttp/Retrofit, Room, or similar technologies • Strong understanding of multithreading, memory management, caching, battery consumption, and mobile performance optimization • Experience with Android profiling, debugging, crash analysis, and production monitoring tools • Experience with unit, integration, and automated UI testing • Experience with Git, code review practices, CI/CD pipelines, and Android application release processes • Ability to break complex problems into smaller, loosely coupled, maintainable, and testable components • Experience working in a Scrum environment and a solid understanding of Agile and Lean principles • Upper-Intermediate or higher English proficiency Nice to Have: • Experience with VoIP, real-time audio, or communication applications • Experience with connected devices and custom communication protocols • Experience with OTA firmware update flows • Experience with JNI, Android NDK, or C/C++ integration • Experience building AI-powered mobile features, integrating AI services, or working with on-device machine learning • Experience publishing and managing applications through Google Play Console The Ideal Candidate: • Demonstrates a strong sense of ownership and takes responsibility for delivered solutions • Has an Agile mindset and works effectively as part of a cross-functional team • Is pragmatic and can find the right balance between an ideal technical solution, delivery timelines, and actual product needs • Can independently analyze, plan, and estimate requirements • Proactively identifies technical risks and proposes practical solutions • Communicates clearly and constructively with both technical and non-technical stakeholders • Is comfortable sharing knowledge, mentoring colleagues, and receiving feedback We offer*: • Flexible working format - remote, office-based or flexible • A competitive salary and good compensation package • Personalized career growth • Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) • Active tech communities with regular knowledge sharing • Education reimbursement • Memorable anniversary presents • Corporate events and team buildings • Other location-specific benefits *not applicable for freelancers