Senior Android Engineer (Lviv only)

Location: Ukraine

Department: Cardo Systems Main Team

N-iX is looking for an experienced, proactive, and ambitious Senior Android Engineer to join our team and contribute to the development in Lviv Office.

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
• Visiting office in Lviv 

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