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evgeny_kramer

Evgeny Kramer

@evgeny_kramer

Software Engineer, Mobile Web Developer

Kazakhstan
English, Russian
About me
Professional Backend & Mobile Developer with 5+ years of experience. I specialize in turning complex ideas into high-performance, production-ready software. My core expertise: • Mobile: Native Android Apps (Kotlin, Jetpack Compose, MVVM). • Backend & Automation: Fast Telegram Bots, WebApps, and API Integrations (Go, Python). I focus on clean code, strict deadlines, and clear business communication. Need a custom solution or have a specific budget? Let's build something great together — message me now! ... Read more

Skills

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evgeny_kramer
Evgeny Kramer
Offline • 

See my services

Android App Development
I will build high performance android app with go backend and websockets
From$100 / projectMore details
AI Chatbot Development
I will develop custom telegram bot using python or golang
From$10 / projectMore details

Portfolio

Work experience

Upwork

Senior Android Developer / Mobile App Engineer

Upwork • Freelance

Feb 2021 - Present • 5 yrs 6 mos

Over 5 years of professional experience in custom Android app development. Successfully delivered dozens of commercial projects ranging from MVP startups to complex, scalable mobile applications. Key Responsibilities & Expertise: • Architecting clean, modular, and maintainable app structures using VIPER, Clean Architecture, and MVVM principles. • Building modern UI components using Jetpack Compose and XML layouts. • Integrating REST APIs and managing asynchronous operations using Retrofit, OkHttp, Coroutines, and Kotlin Flow. • Implementing local databases and caching solutions via Room and SQLite. • Managing dependency injection with Dagger/Hilt and Koin to improve codebase scalability. • Optimizing performance, debugging, and refactoring legacy codebases. Value Delivered: • Clean, well-documented, and scalable code following SOLID guidelines. • Clear technical communication and strict adherence to project deadlines. • End-to-end support from concept refinement to Google Play Store publication.