Anton

Anton Tatarchuk [open contact info](look above in the "contact info" section)
Frontend Engineer LinkedIn
Sofia, Bulgaria BG: [open contact info](look above in the "contact info" section)
React, Next.js — AI-Assisted Development UA: [open contact info](look above in the "contact info" section)

Profile
Frontend Engineer with 7+ years building React, TypeScript, and Next.js products for marketplace and e-commerce
workflows. Focus on frontend architecture, real-time features, accessibility, performance, and technical SEO, with recent
experience using AI-assisted development workflows.

Skills
Frontend: React, Next.js, TypeScript, JavaScript, Tailwind CSS
Testing: Jest, Vitest, React Testing Library, Playwright
State & Data: Redux Toolkit, TanStack Query, REST APIs, WebSocket
Performance & Accessibility: Core Web Vitals, Lighthouse, ARIA
SEO: Technical SEO, Google Search Console
E-Commerce: Magento 2, Shopify, Shopify Checkout UI Extensions, BigCommerce
Tooling & Delivery: Git, CI/CD, Docker, Vite, Webpack
AI-Assisted Development: Cursor, Codex, Ollama, Prompt Engineering
Backend: Node.js, Express, MongoDB

Experience
Market Ai Go (Ofertirai.me) Oct 2025 - Mar 2026
Frontend Engineer Sofia, Bulgaria
• Led frontend implementation for core marketplace flows, building maintainable React/Next.js interfaces, responsive
layouts, and reusable Tailwind CSS components.
• Owned delivery of real-time features including live chat and instant search using WebSocket.
• Used LLM-assisted workflows for legacy-code analysis, debugging, refactoring, technical research, and implementation
planning.
• Improved accessibility through semantic HTML, keyboard navigation, ARIA, accessible forms, and contrast fixes validated
with Lighthouse and Chrome DevTools.
• Managed staging and production releases through CI/CD pipelines.
Lantera Feb 2018 - Sep 2025
Frontend Developer Kharkiv, Ukraine
• Contributed to frontend architecture, reusable patterns, and technology selection across large-scale React applications.
• Owned frontend implementation across Magento 2, Shopify, BigCommerce, and React-based projects, including
responsive UI and complex commerce flows.
• Improved one legacy site’s Lighthouse SEO score from 60 to 100 through technical SEO audits and remediation, including
metadata, canonical URLs, indexing, sitemap, and semantic HTML fixes.
• Improved Core Web Vitals and frontend performance through semantic HTML, image optimization, lazy loading, code
splitting, and JavaScript/CSS optimization.
• Delivered changes through CI/CD with staging validation and production deployments.

Key Projects
Ethernet Exchange – Service Ordering Platform
Complex ordering system with location-based logic and multi-step workflows. Designed frontend structure for
quote-creation and service-selection flows and built data-heavy UI components including grids and management interfaces.
Venby – Video Commerce Platform
Video-based commerce platform with live-stream functionality and integrated product purchasing. Integrated Twilio
streaming services and backend APIs across client-facing and administrative functionality.

Education
Kharkiv National Automobile and Highway University 2015
Master’s degree in Automation and Computer-Integrated Technologies