Development services · Warsaw, Poland

Frontend developer in Warsaw, Poland and Europe

I build fast, accessible user interfaces: semantic HTML, modern CSS, JavaScript and SPA frameworks. Based in Warsaw - available for Polish, European and US projects, remote or on-site.

Frontend developer Warsaw Poland React Vue

Frontend development services

  • Responsive layouts with mobile-first CSS and Tailwind
  • React, Vue.js and Astro components with TypeScript
  • State management, routing and form validation
  • REST and GraphQL API integration on the client
  • Animations with CSS, GSAP or Three.js where appropriate
  • WCAG-minded markup, keyboard navigation and ARIA
  • Core Web Vitals: LCP, CLS, lazy loading and code splitting

How I work on the frontend

I ship pixel-accurate UI from Figma or wireframes - spacing, typography and breakpoints are not approximate.

Legacy jQuery sites get incremental upgrades; greenfield projects use modern stacks (Astro for content sites, React/Vue for apps).

Bundle size and hydration cost matter: I avoid shipping a 400 KB framework when static HTML is enough.

For Warsaw and Polish clients I implement PL/EN versions, hreflang and fast static pages that rank in Google.pl.

US and EU products get analytics events, consent-aware scripts and CDN-friendly asset pipelines.

Frontend stack

HTML5CSS3 / SassJavaScript / TypeScriptReactVue.jsAstroTailwind CSSjQueryThree.jsVite / Webpack

Technical overview

How I build production frontends

Frontend work for me starts with interfaces that survive real data: empty states, slow responses, long labels and mobile keyboards that change the viewport. I build component libraries with typed props and predictable state so the UI stays stable as the product grows.

Day to day I work with React, Vue and Astro, TypeScript, Tailwind or Sass, and careful client-side API integration. Content sites often fit Astro islands better than a full SPA; dashboards and SaaS apps usually need React or Vue with clear routing, form validation and measured loading states.

Performance and accessibility are part of the same job. I track LCP and CLS, split routes, lazy-load below-the-fold media and keep bundles lean. Markup stays semantic, focus order is intentional, and ARIA is used only where native HTML is not enough.

Common frontend tasks I help with

  1. How to rebuild a legacy jQuery UI as React or Vue modules
  2. How to fix CLS on product cards and image galleries
  3. How to split a large bundle without breaking shared state
  4. How to wire form validation to an existing REST API
  5. How to keep focus order correct in a multi-step modal
  6. How to lazy-load below-the-fold media without layout jump
  7. How to implement a design system with typed component props
  8. How to handle empty, loading and error states consistently
  9. How to add client-side routing without losing scroll position
  10. How to improve LCP on a marketing landing page

Warsaw · Poland · Europe · USA

Remote-first development with local presence in Warsaw - the same senior engineer for Polish, European and American clients.

Warsaw

Frontend developer in Warsaw for startups, agencies and SMEs - meetings in person when useful, EN / PL / RU.

Poland

Remote frontend work for Kraków, Wrocław, Gdańsk and nationwide - Polish-market UX and bilingual sites.

Europe

EU-ready frontends: GDPR cookie flows, multi-locale routing and accessible components.

USA

US-market SPAs and landing pages with EST-friendly calls and conversion-focused UI.

Development + SEO

We do not only build - we promote

A fast frontend means nothing if Google never sends traffic - after launch I handle SEO: technical fixes, on-page work and monthly promotion plans from Warsaw.

Website promotion & SEO
Viktar Liukevich

About me

I'm Viktar Liukevich

Full-stack developer · 15+ years creating web

I am Viktar Liukevich, a frontend and full-stack developer in Warsaw with 15+ years of interface work - from jQuery shops to React dashboards and Astro content sites.
Clients hire me when they need a senior frontend developer who ships production UI: semantic markup, typed components, Core Web Vitals and analytics hooks - not Figma screenshots that break on real data.
When a project needs a dedicated React Native app, a Vue enterprise module or a motion-heavy Three.js scene, I bring in trusted frontend partners in Poland, Europe and the USA - each with a proven stack - under NDA. You still coordinate with me; I review every merge before release.
300+
Completed Projects
90+
Clients
10+
Partners

Advantages

  • 15+ years working for myself
  • Wide technology stack
  • Rapid development
  • Warranty and support
  • Global quality standards
  • Working with clients worldwide
  • Innovative technological solutions