Available to hire
Hi, I’m Mostafa Tabasi, a self-taught mobile and Android developer with over 7 years of experience delivering high-quality applications. I’ve built robust apps using Android SDK, Kotlin, Java, and Flutter, and I’m comfortable with Kotlin Multiplatform and Compose Multiplatform. I’m currently expanding into backend development with Spring Boot to broader my platform capabilities.
I enjoy collaborating with product teams to craft delightful user experiences, optimize performance, and implement scalable features. I’ve led initiatives like CI/CD automation with Fastlane, integrated diverse SDKs for internationalization, and I’m passionate about continuously learning new technologies across mobile and backend domains.
Language
English
Advanced
Work Experience
Android Developer at Cartrack
June 1, 2025 - August 16, 2025Contributed to a large-scale Android app with over 1 million downloads and a 4.0 rating from 45K+ reviews on the Play Store. Implemented new features and improved app performance through refactoring legacy code. Increased deployment efficiency by implementing CI/CD pipelines using Fastlane for automated app distribution, eliminating manual efforts. Developed a gamification feature to boost user engagement and retention within the mobile app.
Android Developer at WHIP Mobility
July 1, 2024 - August 16, 2025Contributed to development and customization of a dynamic white-label SaaS product using Agile methodologies (SAFe 5), catering to diverse client needs and driving significant growth. Streamlined user onboarding by integrating Google and Facebook authentication methods, reducing registration time by 45%. Improved app performance by optimizing API calls from RESTful to GraphQL, resulting in a 25% data transfer reduction and faster load times. Enabled international functionality for 3+ markets by integrating 10+ essential SDKs including payment methods, Firebase Realtime Database, and Mapbox.
Android Developer at Khorasan Science and Technology Park
May 1, 2022 - August 16, 2025Facilitated seamless payment integration for third-party applications by developing a reusable ARR library. Designed and implemented a scalable application using clean architecture principles that promoted testability and maintainability. Built with Kotlin, Jetpack Compose, MVVM architecture, and Coroutines. Implemented services for background and long-running tasks and utilized Firebase Crashlytics for efficient bug tracking and crash reporting, achieving a 94% crash-free user session rate.
Junior Android Developer at Khorasan Science and Technology Park
October 1, 2020 - August 16, 2025Improved programming and problem-solving skills through collaborative teamwork. Maintained, debugged, and enhanced existing projects using Java and Kotlin within the MVP architecture. Maintained clear communication with iOS, UI/UX, backend, and QA teams, ensuring high-quality feature delivery.
Android Developer / CTO at Cartack, Kuala Lumpur, Malaysia
June 1, 2025 - September 18, 2025Contributed to a large-scale Android app with 1M+ downloads and a 4.0 rating from 45K+ reviews on the Play Store; implemented new features and improved app performance by refactoring legacy code. Increased deployment efficiency through CI/CD pipelines using Fastlane for automated app distribution. Implemented a gamification feature to boost user engagement and retention within the mobile app.
Android Developer at WHIP Mobility, Petaling Jaya, Malaysia
July 1, 2024 - September 18, 2025Contributed to the development and customization of a dynamic white-label SaaS product using Agile methodologies (SAFe 5), catering to diverse client needs and achieved significant growth. Streamlined the user onboarding process by reducing user registration time by 45% through integrating Google and Facebook authentication. Improved app performance by optimizing API calls from RESTful to GraphQL, resulting in a 25% reduction in transferred unnecessary data and faster loading times. Enabled international functionality for 3+ markets by integrating 10+ essential SDKs (various payment methods, Firebase Realtime Database, Mapbox, etc.).
Flutter Developer / CTO at Khorasan Science and Technology Park, Mashhad, Iran
May 1, 2022 - September 18, 2025Contributed to a highly successful multi-platform cashback app with 50k+ downloads built with Flutter. Facilitated seamless payment integration for third-party applications by developing a reusable ARR library. Implemented services for doing background and long-running tasks. Utilized Firebase Crashlytics for efficient bug tracking and crash reporting, achieving a 97% crash-free user session rate.
Android Developer at Khorasan Science and Technology Park, Mashhad, Iran
October 1, 2020 - September 18, 2025Maintained, debugged, and enhanced existing projects using Java and Kotlin within the MVP architecture. Improved programming and problem-solving skills through collaborative teamwork. Maintained clear communication with iOS, UI/UX, backend, and QA teams, ensuring high quality delivery of features.
Android Developer at Cartack
June 1, 2025 - September 23, 2025Contributed to a large-scale Android app with 1M+ downloads and a 4.0 rating from 45K+ reviews by implementing new features and refactoring legacy code to improve performance. Increased deployment efficiency by establishing CI/CD pipelines using Fastlane for automated app distribution. Implemented a gamification feature to boost user engagement and retention.
Android Developer at WHIP Mobility
July 1, 2024 - September 23, 2025Contributed to the development and customization of a dynamic white-label SaaS product using Agile methodologies (SAFe 5). Streamlined user onboarding by reducing registration time by 45% through integrating Google and Facebook authentication. Improved app performance by transitioning API calls from REST to GraphQL, reducing data transfer by ~25% and speeding up loading times. Enabled international functionality for 3+ markets by integrating 10+ SDKs (payments, Firebase Realtime Database, Mapbox, etc.).
Flutter Developer / CTO at Khorasan Science and Technology Park, Mashhad, Iran
May 1, 2022 - September 23, 2025Led Flutter development for a multi-platform cashback app with 50k+ downloads. Facilitated payment integrations for third-party apps via a reusable ARR library. Implemented services for background and long-running tasks. Used Firebase Crashlytics for bug tracking, achieving a 97% crash-free user session rate.
Android Developer at Khorasan Science and Technology Park, Mashhad, Iran
October 1, 2020 - September 23, 2025Improved programming and problem-solving through collaborative teamwork. Maintained, debugged, and enhanced existing projects using Java and Kotlin within the MVP architecture. Maintained clear communication with iOS, UI/UX, backend, and QA teams to ensure high-quality feature delivery.
Android Developer, CTO at CartRack
June 1, 2025 - September 23, 2025Contributed to a large-scale Android app with 1M+ downloads and a 4.0 rating from 45K+ reviews on the Play Store; implemented new features and improved app performance by refactoring legacy code. Increased deployment efficiency through implementation of CI/CD pipelines using Fastlane for automated app distribution. Implemented a gamification feature to boost user engagement and retention within the mobile app.
Android Developer at WHIP Mobility
July 1, 2024 - September 23, 2025Contributed to the development and customization of a dynamic white-label SaaS product using Agile methodologies (SAFe 5). Streamlined the user onboarding process by reducing user registration time by 45% through integrating Google and Facebook authentication methods. Improved app performance by optimizing API calls from RESTful to GraphQL, resulting in a 25% reduction in transferred unnecessary data and faster loading times. Enabled international functionality for 3+ markets by integrating 10+ essential SDKs (payments, Firebase Realtime Database, Mapbox, etc.).
Flutter Developer, CTO at Khorasan Science and Technology Park
May 1, 2022 - September 23, 2025Contributed to a highly successful multi-platform cashback app with 50k+ downloads built with Flutter, overcoming various technical challenges. Facilitated seamless payment integration for third-party applications by developing a reusable ARR library. Implemented services for doing background and long-running tasks. Utilized Firebase Crashlytics for efficient bug tracking and crash reporting, achieving a 97% crash-free user session rate.
Android Developer at Khorasan Science and Technology Park
October 1, 2020 - September 23, 2025Improved programming and problem-solving skills through collaborative teamwork. Maintained, debugged, and enhanced existing projects using Java and Kotlin within the MVP architecture. Maintained clear communication with iOS, UI/UX, backend, and QA teams, ensuring the high quality of delivered features.
Android Developer / CTO at Cartrack
June 1, 2025 - September 23, 2025Contributed to a large-scale Android app with 1M+ downloads and a 4.0 rating from 45K+ reviews; implemented new features and improved app performance by refactoring legacy code. Implemented CI/CD pipelines using Fastlane for automated app distribution. Implemented gamification features to boost user engagement and retention.
Android Developer at Whip Mobility
July 1, 2024 - September 23, 2025Contributed to the development and customization of a dynamic white-label SaaS product using Agile methodologies (SAFe 5). Streamlined user onboarding by reducing registration time through integrating Google and Facebook authentication. Optimized API calls from RESTful to GraphQL, reducing data transfer by 25% and speeding up loading times. Enabled international functionality for 3+ markets by integrating 10+ SDKs (payments, Firebase Realtime Database, Mapbox, etc.).
Flutter Developer / CTO at Khorasan Science and Technology Park
May 1, 2022 - September 23, 2025Contributed to a multi-platform cashback app with 50k+ downloads built with Flutter. Developed a reusable ARR library to facilitate third-party payment integrations. Implemented services for background and long-running tasks. Used Firebase Crashlytics for bug tracking, achieving a 97% crash-free session rate.
Android Developer at Khorasan Science and Technology Park
October 1, 2020 - September 23, 2025Maintained, debugged, and enhanced existing Java/Kotlin projects within the MVP architecture. Collaborated with iOS, UI/UX, backend, and QA teams to ensure high-quality feature delivery.
Education
Bachelor’s degree in Statistics at Ferdowsi University
October 1, 2010 - September 1, 2014Bachelor's degree at Ferdowsi University, Mashhad, Iran
October 1, 2010 - September 1, 2014Bachelor's degree at Ferdowsi University, Mashhad, Iran
October 1, 2010 - September 1, 2014Bachelor's degree in Statistics at Ferdowsi University, Mashhad, Iran
October 1, 2010 - September 1, 2014Bachelor's degree at Ferdowsi University, Mashhad, Iran
October 1, 2010 - September 1, 2014Qualifications
Industry Experience
Software & Internet, Telecommunications, Financial Services, Transportation & Logistics, Media & Entertainment, Professional Services
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