I’m a Flutter Developer with over 5 years of experience delivering mobile and web applications across FoodTech, MedTech, and eCommerce. I’ve guided international teammates through complex delivery stages, focusing on clean architecture, scalable code, and long-term maintainability. My work spans booking, food ordering, and delivery apps—from building intuitive UIs to integrating Firebase and AWS services (S3, CloudFront). I handle full release cycles for iOS and Android, ensuring reliable deployments and consistent UX across platforms. I’m passionate about product quality, performance, and meaningful user experiences; detail-oriented and team-friendly, I’m ready to contribute to impactful projects and help shape smart, sustainable mobile solutions.

Denys Zhukov

I’m a Flutter Developer with over 5 years of experience delivering mobile and web applications across FoodTech, MedTech, and eCommerce. I’ve guided international teammates through complex delivery stages, focusing on clean architecture, scalable code, and long-term maintainability. My work spans booking, food ordering, and delivery apps—from building intuitive UIs to integrating Firebase and AWS services (S3, CloudFront). I handle full release cycles for iOS and Android, ensuring reliable deployments and consistent UX across platforms. I’m passionate about product quality, performance, and meaningful user experiences; detail-oriented and team-friendly, I’m ready to contribute to impactful projects and help shape smart, sustainable mobile solutions.

Available to hire

I’m a Flutter Developer with over 5 years of experience delivering mobile and web applications across FoodTech, MedTech, and eCommerce. I’ve guided international teammates through complex delivery stages, focusing on clean architecture, scalable code, and long-term maintainability.

My work spans booking, food ordering, and delivery apps—from building intuitive UIs to integrating Firebase and AWS services (S3, CloudFront). I handle full release cycles for iOS and Android, ensuring reliable deployments and consistent UX across platforms. I’m passionate about product quality, performance, and meaningful user experiences; detail-oriented and team-friendly, I’m ready to contribute to impactful projects and help shape smart, sustainable mobile solutions.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate

Language

English
Advanced
Russian
Fluent
Ukrainian
Fluent
Polish
Beginner

Work Experience

Flutter Engineer at Healthcare app
September 1, 2025 - September 22, 2025
Developed core profile-related modules from scratch, including user info editing with field-level validation, password reset, logout, and account deletion features; implemented network interactions using Dio and managed state via BLoC. Built secure token management with Dio interceptors to inject authorization headers and implemented automatic logout in cases of account deletion or ban. Prepared platform-compliant app icons and assisted in the release process. Delivered pixel-perfect UI with custom snack bar components to enhance user feedback.
Flutter Engineer at Healthcare app
September 1, 2025 - September 22, 2025
Developed core profile modules including user info editing with field-level validation, password reset, logout, and account deletion. Implemented secure token management with Dio interceptors and automatic logout on account deletion or ban. Prepared platform-compliant app icons for App Store/Google Play and delivered pixel-perfect UI with custom snack bars.
Flutter Engineer at Dev.Pro
November 1, 2024 - September 22, 2025
White-label app for food ordering and delivery. Delivered modular architecture using Melos and GoRouter, integrated multi-language support and time-zone handling, and implemented Single Sign-On via Apple, Facebook, and Google. Improved CI/CD pipelines (Jenkins) and release reliability, and contributed to a modular monorepo approach with testing coverage and platform-ready deployments. Collaborated with embedded iFrame components to enhance web interoperability and delivered responsive layouts across devices.
Flutter Engineer at Dev.Pro
November 1, 2024 - September 22, 2025
Delivered a white-label food ordering and delivery app. Deployed production Flutter web apps to Firebase Hosting and AWS CloudFront. Implemented integration testing with Gherkin and integration_test, mentored QA engineers. Built a dynamic JSON-based banner system for scheduled in-app campaigns. Strengthened CI/CD with Jenkins, integrated multilingual support, and implemented SSO via Apple, Facebook, and Google. Adopted modular mono-repo using Melos and GoRouter; ensured responsive UI across devices. Assisted in white-label deployments with client-specific asset and theme customization.
Flutter Engineer at Appus Studio
October 1, 2020 - September 22, 2025
Developed and maintained a barber booking application, implementing complete authentication flows with form validation and reactive data handling using RxDart. Translated designs into responsive UIs, integrated API validation via Postman, and improved code stability with unit/widget tests. Integrated Firebase services (Cloud Messaging) to boost user engagement and prepared releases for App Store and Google Play with platform compliance.
Flutter Engineer at Appus Studio
October 1, 2020 - September 22, 2025
Developed and maintained a barber booking app; implemented complete authentication flow with form validation and reactive data handling using RxDart. Translated Sketch mocks into responsive UIs; used Postman to define network models and validate API responses. Improved code stability with unit tests and code reviews; fixed UI and business-logic issues. Integrated Firebase features including Cloud Messaging for push notifications and enhanced user engagement. Contributed to end-to-end release cycles, preparing apps for App Store and Google Play.
Trainee Flutter Developer at Appus Studio
January 31, 2020 - September 22, 2025
Created an application displaying a list of GitHub repositories with sorting functionality, implemented using Flutter BLoC and REST API consumption; built UI with navigation and state management.
Trainee Flutter Developer at Appus Studio
January 1, 2020 - September 22, 2025
Created an app displaying a list of GitHub repositories with sorting, using Flutter BLoC. Implemented REST API interactions and crafted UI with navigation.
Trainee Java Developer at Appus Studio
September 30, 2018 - September 22, 2025
Gained hands-on experience through unit testing and bug fixing while contributing to Java-based components.
Trainee Java Developer at Appus Studio
September 1, 2018 - September 22, 2025
Wrote unit tests and fixed minor bugs in Java projects as part of learning track.

Education

Add your educational history here.

Qualifications

Bachelor's degree in Software Engineering
January 11, 2030 - September 22, 2025
Bachelor's degree in Software Engineering
January 11, 2030 - September 22, 2025

Industry Experience

Software & Internet, Healthcare, Retail, Media & Entertainment, Education

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate