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viktor_kirjanov

Viktor K

@viktor_kirjanov

Senior Flutter Developer

Czech Republic
English, Russian
About me
Flutter Developer with 6 years of mobile and 13 years of overall development experience. I specialize in Flutter & Dart with Clean Architecture and BLoC for maintainable codebases. Based in Europe, I bring reliable communication and overlap-friendly timezones for US, UK, and EU clients. I integrate Firebase, Supabase, REST APIs, and third-party services. I implement payment systems such as Stripe and in-app purchases. I focus on performance, reliability, and production-ready mobile apps.... Read more

Skills

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viktor_kirjanov
Viktor K
Offline • 
Average response time: 1 hour

See my services

Cross-Platform Development
I will create a custom flutter app for ios and android
From$300 / projectMore details
Cross-Platform Development
I will convert your website into a native flutter ios and android app
From$250 / projectMore details

Portfolio

Work experience

Self_Employed

Senior Flutter Developer | B2B | Remote

Self Employed • Self-employed

May 2020 - Present • 6 yrs 2 mos

Building and maintaining cross-platform mobile products end-to-end: architecture design, Flutter development, backend integration, deployment, and ongoing support. Working across different project structures as a technical lead, primary developer, and team contributor. Taking ownership of technical decisions, driving implementation, and delivering products from concept to production. - Led and delivered multiple Flutter-based mobile applications from scratch to production - Acted as primary or sole developer on several projects, owning the majority of implementation - Worked as part of development teams, collaborating on architecture and feature delivery - Designed application architecture and implemented scalable mobile solutions - Integrated backend services, REST APIs, authentication, and third-party SDKs - Managed deployment processes for iOS and Android platforms - Supported post-release maintenance and continuous improvements - Participated in rapid MVP development for experimental mobile products - Maintained and refactored a complex legacy codebase with significant technical debt, improving code quality and long-term maintainability