Android Developer with KMP @ Tooploox

Experience and skills you need to join us: Fluency in English and Polish (you will attend meetings with English speaking clients). 3+ years of experience in Android development, with a portfolio of released apps or contributions to large projects. Strong knowledge of Kotlin and experience with Android SDK. Understanding of Gradle and Android’s build system Knowledge of CI/CD pipelines and version control (Git). Strong knowledge with Jetpack Compose and MVVM architecture. Proficiency in writing Unit Tests and familiarity. Experience with push notifications and mobile analytics. Understanding of how to work with mobile analytics, push notifications, and build scalable user experiences. Strong problem-solving skills and the ability to work independently while collaborating in a cross-functional environment. Practical experience or strong interest in camera APIs, image processing, or on-device vision models — whether through commercial work, prototypes, or personal exploration. Interest in using AI-powered development tools (like Cursor, GitHub Copilot, ChatGPT or other LLMs) to enhance productivity, accelerate learning, and support autonomous problem-solving. Experience working with different types of APIs — especially GraphQL and REST — to support flexible, data-driven app features. Understanding of Agile development methodologies It would be great if you also have: Interest in or experience with AI-driven mobile development, including on-device models (e.g. vision, classification, or generative tasks). Curiosity about prompt engineering, working with embeddings, or integrating voice-based interfaces using LLMs. Experience with AR development using ARCore Familiarity with OpenGL or graphics rendering Understanding of real-time communication protocols, such as gRPC, WebSockets, or WebRTC. Knowledge of Android’s design principles and best practices for creating intuitive, accessible, and visually polished UIs. Strong knowledge with Jetpack Compose and MVVM architecture Proficiency in writing Unit Tests and familiarity. Experience with push notifications and mobile analytics Understanding of Android app performance optimization and scalability considerations Experience working with multi-module projects Problem-solving skills, attention to detail, and ability to work independently Familiarity with popular third-party libraries and tools (e.g. Android Studio, Coroutines, Hilt, Retrofit, Jetpack libraries). Camera operation skills Willingness to work with image processing and vision models Hi there We’re Tooploox, a Solvd Inc. company We create AI-powered products and services that make a real difference. Our team of nearly 200 specialists - including a 40+ person R&D team with many PhDs - has pioneered AI solutions across industries from healthcare to e-commerce. We’ve published research in top-tier venues like NeurIPS and ICML, while delivering real-world applications that help our clients innovate and scale. Now, as Solvd Inc. company, we’re building on our strengths with even greater global reach and resources — while keeping the creative, human-scale culture that defines us here in Poland. If you want to work on meaningful AI projects, with space to grow and the freedom to innovate, you’ll feel right at home. Feel invited ,[Develop high-quality mobile applications for the Android platform, ensuring performance, scalability, and maintainability., Collaborate with other teams (including iOS, AI/ML and Design teams) on cross-domain functionality and integrations., Write clean, maintainable, and efficient code, following best practices and industry standards., Participate in code reviews to ensure high-quality development and share knowledge with the team., Support debugging, testing, and optimization efforts to deliver a smooth user experience., beyond the code:, Demonstrated ability to take ownership of projects and work autonomously, delivering high-quality solutions with minimal supervision., A proactive and self-driven approach, coupled with excellent organizational skills, to independently manage and deliver on project goals., A collaborative mindset that extends to client interactions, enabling you to effectively communicate technical solutions and gather business requirements., Interest in the business impact of mobile applications and a strong passion for exploring and applying emerging technologies — especially in the areas of AI, AR, and on-device intelligence — to create innovative user experiences.] Requirements: Android, KMP, Kotlin, Gradle, Clean Architecture, Unit testing, MVVM, Jetpack Compose, Android SDK , CI/CD, Android Studio, Coroutine, Hilt, Retrofit, UI Testing, GraphQL, REST API, AI, OpenGL, AR Tools: GitHub. Additionally: Sport subscription, Private healthcare, Flat structure, Lunch card, Small teams, Training budget, International projects, Free coffee, Gym, Bike parking, Playroom, Shower, Free snacks, Free beverages, In-house trainings, In-house hack days, Modern office, Startup atmosphere, No dress code, Free breakfast.