Роман

Full stack програміст, 80 000 UAH

Considering positions:
Full stack програміст, React/Next/React Native Developer, Front-end програміст, Web-програміст
Employment type:
full-time
Age:
26 years
City of residence:
Berdychiv
Ready to work:
Remote

Contact information

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Work experience

React developer

from 06.2020 to 03.2025 (4 years 9 months)
Platinum ltd, Дистанційно (IT)

- Started as a React Native developer and later transitioned to the Front-End team.
- Developed and maintained a reusable Crypto Wallet library for secure user authentication via MetaMask, WalletConnect, and other crypto wallets; the library was actively used across multiple company projects over several years.
- Integrated Web3 functionality, enabling seamless interaction with blockchain networks and smart contracts.
- Played a key role in the development and maintenance of NFT marketplaces, ensuring stability and scalability under high traffic conditions (up to 5,000 real-time users).
- Took full ownership of one of the NFT marketplace projects, from front-end architecture planning to production deployment.
- Designed and implemented a custom UI component library using Storybook, improving code reuse and UI consistency across the platform.
- Regularly implemented CI/CD pipelines to streamline development and deployment processes.
- Integrated analytics tools for user behavior tracking and implemented SEO and performance optimizations, resulting in faster page loads and better search visibility.

React developer

from 06.2019 to 12.2019 (6 months)
WeSoftYou, Дистанційно (IT)

- Built a cross-platform mobile app with React Native (iOS/Android).
- Implemented navigation and state management using React Navigation and Redux.
- Optimized performance, handled testing, deployed to App Store and Google Play.
- Provided post-release support and updates.

Fullstack-розробник

from 01.2019 to 06.2019 (5 months)
ElSharm, Дистанційно (IT)

- Led the development of an internal analytics tool designed to interact with Instagram’s data ecosystem.
- Performed API sniffing and traffic analysis to understand undocumented Instagram endpoints and data flows.
- Created a reusable JavaScript library for streamlined communication with the Instagram API, enabling structured access to profile data, media content, and engagement metrics.
- Developed the entire application stack, including a custom backend using Node.js and Express, and a responsive front-end using React.js.
- Implemented secure authentication flows and data handling procedures to ensure performance and data integrity.
- Supported internal stakeholders by enabling data visualization and insights for business analysis.

React developer

from 05.2018 to 01.2019 (8 months)
SlicePlanet, Дистанційно (IT)

- Initially hired as a Vue.js developer to build SPA (Single Page Applications) for various clients across industries.
- Worked on diverse outsourced projects including a crypto exchange platform, a mobile app for mothers and children, and internal business tools.
- Expanded the technology stack beyond Vue.js to include React.js and React Native for mobile applications.
- Participated in high-load back-end development using Node.js, implementing RESTful APIs, caching mechanisms, and MongoDB-based data storage.
- Promoted a shift within the team from jQuery-heavy templates toward a more maintainable, component- driven development approach, making it easier to integrate layouts into modern frameworks.
- Provided mentorship and technical guidance to junior developers and layout designers, helping them adopt best practices and improve overall code quality.

Mobile Developer

from 09.2016 to 01.2018 (1 year 4 months)
Венбест, ТОВ, Київ (Охорона, безпека)

- Developed a mobile application for security personnel to ensure rapid response to alarm signals at designated locations.
- Integrated Google Maps API to provide real-time navigation to incident sites.
- Implemented real-time communication with the backend via WebSockets for status updates and photo transmission from the field.
- Built a dynamic ticket status system (e.g., received, en route, completed).
- Debugged and optimized the application for improved performance and reliability.
- Observed real-world usage of the app by employees and continuously improved the UX based on their feedback and behavior analysis.

Knowledge and skills

  • JavaScript
  • HTML
  • CSS
  • Git
  • REST
  • JSON API
  • ReactJS
  • JQuery
  • Frontend
  • Jira
  • NextJS
  • TypeScript
  • Redux
  • React Native
  • MobX
  • React Query
  • React Hook Form
  • WebSocket
  • Web3
  • Agile
  • Linux
  • StyledComponents
  • Jest
  • Stylus
  • Gulp
  • Firebase
  • AWS
  • Docker
  • API

Language proficiencies

  • Ukrainian — fluent
  • Russian — fluent
  • English — average

References

Mykhailo Kudriashev

Mykhailo Kudriashev

Team Lead/Tech Lead, Platinum Ltd

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