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Front-end програміст
- Considering positions:
- Front-end програміст, React-розробник, Javascript-програміст
- City of residence:
- Kyiv
- Ready to work:
- Remote
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Artem Kravchenko - Frontend Engineer
[open contact info ](look above in the "contact info" section) | Poznań, Poland | [open contact info ](look above in the "contact info" section) | github.com/xxanin | [open contact info ](look above in the "contact info" section)
About Me
Frontend engineer with 3+ years of experience building production React and Next.js applications for AI, SaaS, logis
tics and travel platforms. Experienced in performance optimization, AI-powered user interfaces, data visualization
and scalable TypeScript architectures.
Work Experience
Frontend Engineer May 2025 — Current
Signus.ai Remote
• Joined the founding engineering team to build an AI-powered e-signature platform using React, Next.js and Nx.
• Improved mobile Lighthouse performance from 40 to 95+ through SSR, bundle optimization and accessibility
improvements.
• Implemented Playwright E2E testing, Sentry monitoring and Stripe integration to improve product reliability.
• Developed production AI chat interfaces with streaming responses, document previews, suggested actions and
optimized rendering for large conversations.
Frontend Engineer (Contract) Apr 2024 — Apr 2025
TCG World Remote
• Migrated a production React SPA to Next.js App Router with SSR and modern routing architecture.
• Reduced TTFB by 68% and improved LCP from 4.2s to 1.6s through rendering and asset optimizations.
• Improved SEO and Core Web Vitals, contributing to a measurable increase in organic search traffic.
• Collaborated with backend engineers and designers to deliver production features in an agile environment.
Frontend Engineer (Part-time Contract) Sep 2024 — May 2025
Vektor Remote
• Built high-performance GIS dashboards for fleet analytics using Mapbox GL and React.
• Optimized virtualized tables handling 50k+ rows and reduced render time from 900ms to 130ms.
• Improved rendering performance of complex charts through memoization and state optimization.
Frontend Engineer (Part-time Contract) Apr 2023 — Sep 2024
winwin.travel Remote
• Developed customer-facing travel platforms using React and Next.js.
• Consolidated shared UI into an Nx monorepo using Feature-Sliced Design to improve maintainability.
• Achieved Lighthouse scores above 90 through SSR, code splitting and frontend performance optimization.
Skills
• Frontend: React, Next.js (App Router), TypeScript, Redux Toolkit, Zustand,
React Query, Tailwind CSS, shadcn/ui, Radix UI, Mapbox GL, Socket.io, Zod
• Testing & Tooling: Playwright, Jest, ESLint, Nx, Vite, Turbopack,
Git, CI/CD, GitHub Actions, Bitbucket Pipelines, Vercel, AWS Amplify
• Backend & Infrastructure: Node.js, Express, REST APIs, PostgreSQL,
SQLite, Docker, AWS, Stripe API, Sentry, Python
• AI Tools: Cursor, Claude, GitHub Copilot, ChatGPT
• Additional: Rust, Go, C, C++, OpenGL, Tauri
• Languages: Ukrainian (Native), English (C1), German (B1), Polish (A2)
Projects
Wardex (IoT Ecosystem) github.com/xxanin/wardex
• Built and deployed a full-stack IoT platform connecting embedded devices with a PWA dashboard using Svelte,
Node.js and Azure.
Gravitation Particles github.com/xxanin/gravitation-particles
• Built a physics simulation in Rust implementing the Barnes-Hut algorithm for complex N-body gravity calculations.
Education
Collegium Da Vinci
Engineer’s Degree in Information Technology Poznań, Poland
[
About Me
Frontend engineer with 3+ years of experience building production React and Next.js applications for AI, SaaS, logis
tics and travel platforms. Experienced in performance optimization, AI-powered user interfaces, data visualization
and scalable TypeScript architectures.
Work Experience
Frontend Engineer May 2025 — Current
Signus.ai Remote
• Joined the founding engineering team to build an AI-powered e-signature platform using React, Next.js and Nx.
• Improved mobile Lighthouse performance from 40 to 95+ through SSR, bundle optimization and accessibility
improvements.
• Implemented Playwright E2E testing, Sentry monitoring and Stripe integration to improve product reliability.
• Developed production AI chat interfaces with streaming responses, document previews, suggested actions and
optimized rendering for large conversations.
Frontend Engineer (Contract) Apr 2024 — Apr 2025
TCG World Remote
• Migrated a production React SPA to Next.js App Router with SSR and modern routing architecture.
• Reduced TTFB by 68% and improved LCP from 4.2s to 1.6s through rendering and asset optimizations.
• Improved SEO and Core Web Vitals, contributing to a measurable increase in organic search traffic.
• Collaborated with backend engineers and designers to deliver production features in an agile environment.
Frontend Engineer (Part-time Contract) Sep 2024 — May 2025
Vektor Remote
• Built high-performance GIS dashboards for fleet analytics using Mapbox GL and React.
• Optimized virtualized tables handling 50k+ rows and reduced render time from 900ms to 130ms.
• Improved rendering performance of complex charts through memoization and state optimization.
Frontend Engineer (Part-time Contract) Apr 2023 — Sep 2024
winwin.travel Remote
• Developed customer-facing travel platforms using React and Next.js.
• Consolidated shared UI into an Nx monorepo using Feature-Sliced Design to improve maintainability.
• Achieved Lighthouse scores above 90 through SSR, code splitting and frontend performance optimization.
Skills
• Frontend: React, Next.js (App Router), TypeScript, Redux Toolkit, Zustand,
React Query, Tailwind CSS, shadcn/ui, Radix UI, Mapbox GL, Socket.io, Zod
• Testing & Tooling: Playwright, Jest, ESLint, Nx, Vite, Turbopack,
Git, CI/CD, GitHub Actions, Bitbucket Pipelines, Vercel, AWS Amplify
• Backend & Infrastructure: Node.js, Express, REST APIs, PostgreSQL,
SQLite, Docker, AWS, Stripe API, Sentry, Python
• AI Tools: Cursor, Claude, GitHub Copilot, ChatGPT
• Additional: Rust, Go, C, C++, OpenGL, Tauri
• Languages: Ukrainian (Native), English (C1), German (B1), Polish (A2)
Projects
Wardex (IoT Ecosystem) github.com/xxanin/wardex
• Built and deployed a full-stack IoT platform connecting embedded devices with a PWA dashboard using Svelte,
Node.js and Azure.
Gravitation Particles github.com/xxanin/gravitation-particles
• Built a physics simulation in Rust implementing the Barnes-Hut algorithm for complex N-body gravity calculations.
Education
Collegium Da Vinci
Engineer’s Degree in Information Technology Poznań, Poland
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The candidate's resume is posted at https://www.work.ua/resumes/13194058/