Віталій

Yasynchuk Vitalii
Software Developer (Front End / Back End)
[open contact info](look above in the "contact info" section) | Telegram: @Fallagar |Ukraine, Kryvyi Rih
SKILLS

●​ View: ReactJs, Next.js, Remix, EJS, Liquid
●​ Styling: SCSS, CSS Modules, Tailwind CSS, Bootstrap, Styled Components
●​ Tools: TypeScript, Redux, Storybook, REST API, WebSockets, RTK Query, Tanstack Query, GraphQL
●​ Testing: React Testing Library, Jest, Postman
●​ Backend: Node.js, Express.js
●​ Database Systems: MongoDB, PostgreSQL
●​ Misc: Docker, UNIX, Nginx, Git, Webpack, Babel
●​ Languages: English (Advanced), Ukrainian (fluent)

EXPERIENCE
3 Years 8 Months

DevIT
Ukraine | SEP 2024 - present
Full Stack Developer

●​ Developed highly customizable store themes for Shopify stores according to clients’ needs from scratch
●​ Developed custom apps and solutions that expanded Shopify stores
●​ Addressed and resolved clients` issues.
●​ Fixed bugs, optimized performance and developed new features for existing apps/themes.

Stack: ReactJs/Remix, Shopify, Shopify Storefront API, NodeJs, SQL (MongoDB), NoSQL (PostgreSQL), Gadget.dev,
GraphQL, Liquid, VanillaJS

Inboost, LLC
Ukraine | JAN 2024 – AUG 2024
Front End Developer

●​ Developed and implemented fast and reliable kanban board with virtual cards, lists, drag and drop,
pagination and live updates via WebSocket, which can hold >10000 items without performance drops
●​ Expanded functionality of live chat, both in standalone window and iFrame widget, with ability to save user
interactions and chat history after page reload. Implemented tabs sync via browser indexedDB and
BroadcastChannels, interactions with parent window, notifications of unread messages, animations and
security
●​ Optimized and added functionality to ChatBot Flow (canvas constructor that allows user to construct
ChatBot logic), which increased performance and user experience
●​ Improved development experience by optimizing webpack, which improved project live reload time
from 45s to 1s-2s
●​ Implemented Storybook on the project to streamline component development and testing, enhance
collaboration among team members, and improve documentation and visual consistency across the UI
●​ Fixed bugs, optimized performance and developed new reusable components and features

Stack: ReactJs, Next.js, Redux Toolkit, RTK Query, TypeScript, VanillaJS, SCSS, SignalR, Rest API
Liberty Wallet
Ukraine | OCT 2023 – JAN 2023
Lead Backend Developer

●​ Designed and implemented backend architecture for MVP Money Exchange Platform, that allowed
moving funds between users, finance projects, and give or take loans
●​ Implemented integration with PayU, which allowed users to deposit funds onto their accounts
●​ Implemented security via Auth2.0, backend validation of all transactions, and logging
●​ Created API documentation for front-end developers with swagger
●​ Mentored less experienced developers
●​ Managed hosting, VPS server, and mailing services
●​ Dockerized and deployed project

Stack: NodeJs, ExpressJS, MongoDB, Swagger, ReactJS, Rest API, Webhooks

Fair Partner Group
Poland | MAY 2022 – JAN 2024
Full Stack Developer

●​ Developed and supported necessary tools that fulfilled company needs
●​ Developed mileage tracking application, which allowed users to track mileage on their vehicles via
Google Timelines data
●​ Developed PDF generation application, which allows users to fill documents templates and
download, send or print them
●​ Developed fast and visually appealing landing page for consulting department, which brought >200 new
clients to the firm
●​ Managed servers (VPS Ubuntu, Nginx/Apache) and integrations (Stripe, Bitrix24, T-Mobile, Sendpulse)
●​ Created a layout for emails and email footers, ensuring responsive design and cross-client compatibility, and
maintain company branding

Stack: ReactJs, NodeJs, Express, MongoDB, Redux Toolkit, EJS, Rest API, Webhooks, React Bootstrap, SCSS, Tanstack
Query

KRWebStudio
Ukraine | NOV 2021 – MAY 2022
Markup Developer

●​ Created custom landing pages for local businesses using HTML, CSS and VanillaJs

Stack: HTML, CSS, VanillaJs

SOFT SKILLS

●​ Communication ●​ Team Player
●​ Problem-Solving ●​ Time Management
●​ Attention to Detail ●​ Creativity
●​ Adaptability ●​ Critical Thinking
●​ Patience