Alexander Mamaienko Email and Phone Number
👋 Hey there! I'm Alexander Mamayenko — an Android Developer with 10+ years of experience crafting mobile solutions for startups and corporations alike. My journey has taken me through 20+ published apps, with over 50k+ installations, helping users across various industries.🚀 As a Android Developer, I've built and led teams, developed scalable solutions, and improved performance — like reducing app crashes by 98%. I thrive in fast-paced environments, whether it's leading a team or jumping into code to deliver impactful, user-focused products.🔧 My toolkit includes Kotlin, Java, Flutter, and various cutting-edge technologies like MVVM, Jetpack Compose, Corutines, Firebase CI/CD, etc. From fintech apps to dashcams and eBook readers, I've worked on projects that not only solve problems but also deliver seamless experiences for users.🎯 I’m passionate about solving complex challenges through technology and love creating apps that people rely on every day. Let’s connect and explore how I can help bring your ideas to life!
Upwork
View- Website:
- upwork.com
- Employees:
- 69122
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Android DeveloperUpwork Apr 2024 - Present
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Technical Consultant | Product OwnerInterpay Apr 2023 - PresentZaporizhzhya, Ukraine- 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%.
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Android EngineerBillo Apr 2022 - Apr 2023Швеция- 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. -
Android DeveloperVerisure Jan 2021 - Mar 2022Дания- Collaborated in a small team to develop a neighborhood violation tracking app.- Utilized Mapbox and custom views for advanced mapping and tracking features.- Adopted MVVM architecture to create scalable, maintainable app structure.- Delivered innovative solutions for tracking real-time violations and incidents.- Ensured the app's usability and efficiency, aligning with user needs. -
Android DeveloperDashcamu Apr 2021 - Oct 2021Ukraine- 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. -
Founder | Product Owner | (Pet Project)Vkphotos Jan 2017 - Mar 2021- 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/
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Android DeveloperUdtech - Product Development And Support Mar 2020 - Dec 2020Ukraine- 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 -
Android DeveloperFast And Shine Mar 2019 - Mar 2020- 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. -
Android DeveloperPayever Dec 2018 - Feb 2019Днепр -
Android DeveloperFast And Shine Apr 2018 - Nov 2018
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Android DeveloperShafa Aug 2017 - Mar 2018Ukraine- Developed and refactored the Shafa online marketplace app, improving performance.- Enhanced user experience by troubleshooting and fixing critical bugs.- Worked on updating the app’s features, aligning with user needs and market demands.- Collaborated with a small team to deliver an app tailored to Ukrainian users.- Adapted quickly to changing requirements following the company’s acquisition. -
Android DeveloperInteza Solutions Oct 2015 - Dec 2016Ukraine- 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. -
Android DeveloperFreelancer Jul 2015 - Sep 2015
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Android DeveloperUran Company Sep 2014 - Jul 2015Ukraine- 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.
Alexander Mamaienko Education Details
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Zaporizhzhya Institute Of Economics And Information Technologies5.0 -
Ка Шаг
Frequently Asked Questions about Alexander Mamaienko
What company does Alexander Mamaienko work for?
Alexander Mamaienko works for Upwork
What is Alexander Mamaienko's role at the current company?
Alexander Mamaienko's current role is Remote Only | Lead & Android Developer | 10+ Years Experience in Android (Kotlin, Java) | 50k+ App Installs, 98% Crash Reduction | Delivering Scalable, User-Centric Mobile Solutions.
What schools did Alexander Mamaienko attend?
Alexander Mamaienko attended Zaporizhzhya Institute Of Economics And Information Technologies, Ка Шаг.
Who are Alexander Mamaienko's colleagues?
Alexander Mamaienko's colleagues are Pauludhe The Inframe, Yeasin Hossain🔥, Saad Khalid, Paul Eduard Sta Ana, Iwelu Frank, Mohammed Salem, Md. Abul Hashem.
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