Олег

OLEH BILOSTOTSKYI Open portfolio

Front-end Developer with 3+ years of experience working with
React / Next / TypeScript

Worked on SaaS and e-commerce systems including POS, KDS,
kiosks, admin panels and client portals.

Responsible for building order flows, integrating payments:
terminals and cash machines;
Implementing real-time features used by staff and customers in
daily operations;

CONTACT INFO WORK EXPERIENCE
Email: [відкрити контакти](див. вище в блоці «контактна інформація») Front-end Developer React Nov 2023 - Feb 2026
Phone: [відкрити контакти](див. вище в блоці «контактна інформація») (2yr. 4 mos.)
Address: Ukraine, Cherkasy Go Interative
LinkedIn: Oleh Bilostotskyi
GitHub: Oleh Bilostotskyi • Worked on a SaaS restaurant platform including POS, KDS, self-service
Portfolio: Oleh Bilostotskyi kiosk, admin panel and partner portal
• Implemented full end-to-end order flow: order creation, editing, cart
TECH SKILLS management, upsells, checkout and payment processing
• Built complex payment logic including multiple payment providers,
Core Stack: State & Data:
split payments and fallback handling (offline mode, retry logic)
React, Redux Toolkit,
• Implemented real-time order synchronization with KDS via
Next.js, RTK Query,
TypeScript, Zustand, WebSockets (order updates, statuses, kitchen workflow)
JavaScript (ES6+) TanStack Query, • Developed multi-device interfaces (tablet, desktop, kiosk) optimized
REST API, for high-traffic environments
UI & Styling: WebSockets • Built and maintained admin panel features: business management,
Tailwind CSS,
menu configuration, roles & permissions, reports and integrations
Material UI, Tools &
• Integrated delivery features including Google Maps and location-
Bootstrap4, Ecosystem:
SCSS/SASS, Git, based order handling
Styled Vite, • Collaborated with designers and stakeholders to уточнювати
Components, Webpack, requirements, propose solutions and improve UX before
Framer Motion Sentry, implementation
i18n,
Testing: GraphQL Front-end Developer React May 2023 - Sep 2024
Jest, (Apollo Client),
(1 yr. 5 mos.)
React Vercel, Positive Reset
Testing Library, Firebase
• Developed and maintained websites for a multi-location clinic
Cypress,
Playwright Additional: franchise
Vue, • Built a custom admin panel and CRM-like system for managing
Nuxt, content, users and internal operations
React Native, • Redesigned and improved an existing admin panel, enhancing UI/UX
Node.js, • Implemented role-based access and data-driven interfaces
Mapbox
• Integrated Firebase (Authentication, Firestore, Hosting)
• Developed service listings and order/request flows
LANGUAGES
• Refactored and improved codebase structure
Ukrainian Native
English B2 Content Managet Mar 2020 - Nov 2023
(3 yrs. 8 mos.)
Games web sites
• Worked on a gaming web portal focused on publishing and
managing browser-based games
• Searched, tested, and integrated games built with HTML5, Unity, and
various emulators
• Created unique SEO-oriented descriptions for games and related
content
• Published and maintained content using Joomla CMS
• Regularly worked with HTML and CSS to adjust layouts, fix UI issues,
and customize pages
• Used JavaScript for basic logic and data handling, including
frequent use of array methods
• Managed files and deployments via FileZilla (FTP)
• Gained hands-on experience with web technologies, content
workflows, and large-scale content platforms

EDUCATION
Cherkasy State Technological University
Project Management - Master’s degree Sep 2024 - Jan 2026

Kyiv National University of Technologies and Design
Design - Bachelor’s degree Sep 2015 - Jun 2019

COURSES
GeekHub Oct 2022 - May 2023
HTML | CSS | JS | React | Redux | TypeScript | Node.js

7EEDUCATION Apr 2022 - Sep 2022
HTML | CSS | JavaScript | React

Udemy Mar 2022 - May 2022
JavaScript Full Course