Radek – Java, Android, Kotlin

This UK-based startup focuses on creating headphones designed to improve sleep quality. The Android app allows users to set up their ideal sleep environment and, through a BLE connection, customizes the user’s experience throughout the night.

• Created the app from scratch;
• Maintained the app during its lifecycle;
• Designed and implemented new features and improvements in collaboration with design and business teams;
• Served as the sole Android developer, responsible for all aspects of the app development process.

A networking platform tailored for business professionals, enabling idea exchange, knowledge sharing, and the creation of new connections.

• Developed the entire app from scratch and published it on Google Play;
• Translated customer ideas into project requirements and implemented them as a complete solution;
• Served as project architect, leading a team of developers throughout the development process;
• Acted as the main point of contact with the customer to ensure alignment and satisfaction with project goals.

This app serves as a helpful tool for maintaining a perfectly manicured lawn. By connecting to external weather services, it predicts optimal watering schedules and durations. It also offers guidance on fertilizing and mowing, with all advice delivered by an animated main character designed to engage and assist users.

• Engaged directly with the customer to translate ideas into the project;
• Led a team of developers in system architecture, weekly sprints, and converting business logic into a functional solution;
• Developed the entire Android app from scratch;
• Implemented new functionalities and integrated Rive animations;
• Covered code with tests to ensure reliability;
• Integrated the app with external weather services.

This app is designed to enhance smarter cardio, speed up recovery, and support users in improving their fitness and conditioning.

When used with a heart rate monitor, the app can measure and track HRV and recovery, provide personalized heart rate zones, and help users achieve the ideal balance of volume and intensity each week through its CardioSmart features.

• Developed the app from scratch;
• Designed and implemented custom UI components, including charts, indicators, and interactive elements;
• Troubleshot and resolved application issues to ensure a smooth user experience and high performance;
• Added new features and enhancements to improve app functionality and user engagement.