Alexander Mamaienko

- Recruited and built a high-performing dev and marketing team from scratch. - Communicated closely with C-level executives to align business and tech strategies. - Defined team vision, goals, and tasks, leading to seamless project execution. - Enhanced QR recognition by 8x, dramatically improving user experience. - Led a full site redesign, boosting online conversions by 3x and payments by 400%.

- Developed a fintech app from the ground up, collaborating closely with another developer. - Implemented cutting-edge Android technologies to create a user-friendly, robust platform. - Delivered a seamless mobile experience, leading to 50,000 users within 9 months. - Reduced app crashes by 98% by integrating Crashlytics and CI/CD pipelines. - Improved the stability and performance of the app, significantly enhancing user satisfaction.

- Accelerated the development of DashcamUa, a mobile app designed for dashcam functionality. - Developed advanced features like car accident recognition and two-way camera recording. - Integrated video and sensor data collection for enhanced safety insights for drivers. - Collaborated with the team to deliver a polished product within 5 months. - Presented the app to government agencies, setting the stage for potential adoption.

- Conceptualized and developed a dropshipping support app for Vkontakte social network. - Managed all aspects of the business, including development, marketing, and sales. - Developed both Android and .NET applications to support the platform's functionality. - Designed and launched the app’s landing page, optimizing for user acquisition. - Closed the project after 5 years of operation, gaining valuable entrepreneurial experience. http://vkphotos.top/

- Led the development of a social network app for airsoft players as the sole Android developer. - Designed and implemented all app features independently, ensuring a complete user experience. - Created a platform tailored to airsoft enthusiasts, fostering community engagement. - Developed the app from concept to release, handling all Android development aspects. - Ensured app stability and performance, supporting the growth of a niche user base. https://play.google.com/store/apps/details?id=com.app.airsofter

- Refactored** existing car wash app code, introducing new features and fixing bugs. - Led the development of app architecture and UI for a cryptocurrency trading app. - Maintained codebase stability while adding new features, ensuring smooth functionality. - Developed a cryptocurrency wallet with trading features, expanding the app’s functionality. - Enhanced app usability through detailed transaction animations and REST API integration.

- Developed various Android apps across different industries, including fintech and social media. - Contributed to a cryptocurrency wallet app, improving app security and functionality. - Collaborated with a team to deliver fully functional, client-specific mobile solutions. - Enhanced user engagement by integrating seamless UX/UI designs into multiple apps. - Completed several projects independently, managing full app development cycles.

- Developed five projects, including a messaging app and a stock trading platform. - Refined app architecture, improving overall performance and stability. - Delivered a messenger app that supported real-time communication for users. - Collaborated with cross-functional teams to ensure timely project delivery. - Resolved critical bugs, improving app reliability and user satisfaction across projects.