Freelancer profile translated to English.
Back to original languageAbout Viktor
Mobile / Web Developer - React Native / Nest.Js
Since 2017, I have been helping companies create high-performing and sustainable mobile applications, as well as modern web solutions, by working on the entire development cycle.
Over the years, I have had the opportunity to work on large-scale projects such as Bip&Go, HeHop, Iiconi, or Fransat & Moi.
My main skills:
- React Native : development of high-performing and intuitive mobile applications.
- Android Auto & CarPlay : advanced integrations for in-vehicle use.
- Kotlin & Swift : writing custom SDKs to meet specific business needs.
- React.js : creation of interactive and responsive web platforms.
- Node.js / Express / NestJS / GraphQL : development of reliable and scalable backends.
- JavaScript & TypeScript : mastery of modern standards for high-performing and maintainable applications.
- CI/CD : setting up continuous integration and deployment pipelines for fast and secure deliveries.
Beyond code, I assist my clients in their technical and functional choices, in order to find the best balance between cost, value, and feasibility.
Feel free to contact me to discuss your projects — I will be happy to help you bring your ideas to life.
French
Native or bilingual
English
Fluent
Bulgarian
Native or bilingual
Can work on-site
Paris (up to 50km)
Experience
- Bip&Go
On Malt
Full Stack React Native Developer - Mobility ApplicationTRAVEL AND TOURISMJuly 2024 - June 2025 (1 year)Paris, France- Setup of a unified component library for web and React Native, built with Tamagui and faithful to the Figma Design System
- Development of new mobile and backend features (React Native / NestJS / GraphQL / Typescript / Kotlin / Swift).
- Native integration of CarPlay and Android Auto into the React Native application
- Development of business logic libraries in Swift and Kotlin
- Improvement of stability and implementation of monitoring
- Backend performance optimization: GraphQL queries, Cron Jobs, DB load management.
- Reduction of technical debt while ensuring continuous delivery of new features.
- Bip&GoFull Stack React Native Developer - Mobility ApplicationTRAVEL AND TOURISMJuly 2023 - June 2024 (1 year)Paris, France
- Development of new features and evolutionary maintenance of the mobile application. (React Native / Typescript).
- Development of business logic libraries in Swift and Kotlin
- Improvement of user experience, leading to an increase in app store ratings from 3.4★ to 4.7★.
- Development of new features and evolutionary maintenance of the mobile application.
- Close collaboration with the UX team for the design and iteration of screen mockups.
- Reduction of technical debt while ensuring continuous deployment of new features.
- EurelisFront-End and Mobile DeveloperSOFTWARE PUBLISHINGOctober 2019 - September 2022 (2 years and 11 months)92400 Courbevoie, France
- Development of new features and bug fixes on several mobile projects (HeHop, Iiconi, Fransat & Moi, etc.).
- Management and updating of React Native versions across all agency projects.
- Creation of a complete Starter Kit to accelerate the start of new projects (navigation, translation, CI/CD, generic components, etc.).
- Setup and maintenance of CI/CD pipelines on over ten React Native applications.
- Improvement of stability, performance, and monitoring (crash reports, analytics, etc.).
- Development of business logic libraries in Swift and Kotlin integrated into React Native projects.
- Integration of Deep Link and Universal/App Links systems for smooth navigation between applications and external content.
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Education
- Master M2I Lead Dev, Computer ScienceCoding Factory2020Master M2I Lead Dev, Informatique
- Bachelor's degree, Computer ScienceETNA, Computer Science Apprenticeship School2018Bachelor's degree, Informatique