
Frontend Development Senior Experience. Delivering adaptive, fast and scalable interfaces Core Expertise Rendering, Web Performance, and Build optimization Scalable systems, Technical SEO, and Accessibility (A11y) GILT: Globalization, Internationalization, Localization, and Translation Developer Experience (DX), Refactoring, and Migration Multi-brands & Marketing Technology Integrations ·~•◁[≈&&≈]▷•~· Agnostic in JS Frameworks NuxtJS VueJS Astro Remix React MDX Shadcn/ui Flowbite Preline DaisyUI SolidJS SvelteKit This site is made in Astro, with custom AI Chat Interface in React. CSS Styling Experience the Design System by changing the color theme, color mode, and font preferences. The design system is active throughout the whole site, including the React AI Chat messages. Text Smoothing Corner Smoothing styling.css `@layer architecture { /* BEM & ITCSS / / SCSS, Styled Components, TailwindCSS & PostCSS / / Bootstrap & MaterialDesign CSS / }` Compatibility PWA / Service Worker / Workbox Content Security Policy & CORS Electron + Capacitor (Ionic) Modernizr & Browser APIs Multimedia Font, Image & Icon optimization SVG & Lottie Animations Motion & GSAP Architecture Design Systems with atoms, tokens, components catalogues & templates. UI Design Patterns for dynamic and adaptive styling and versatile applications. Incremental refactoring of codebases. ·•(&&)*•· Developer Experience (DX) NPM Gulp Babel WebPack Vite VsCode CoPilot EsLint Prettier StyleLint Browserslist Editorconfig Quality Assurance Quality assurance `Sentry && TrackJS BDD/TDD --Jest --Jasmine Integration && Unit testing` —·¤·∞•«⟨≡&&≡⟩»•∞·¤·— Contact Delft, The Netherlands linkedin/robertjansen hire@robertjansen.dev Style Preferences Theme Palette Appearance Text Smoothing Corner Smoothing

Frontend Development

Senior Experience. Delivering adaptive, fast and scalable interfaces

Core Expertise

Rendering, Web Performance, and Build optimization
Scalable systems, Technical SEO, and Accessibility (A11y)
GILT: Globalization, Internationalization, Localization, and Translation
Developer Experience (DX), Refactoring, and Migration
Multi-brands & Marketing Technology Integrations

·~•◁[≈&&≈]▷•~·

Agnostic in JS Frameworks

NuxtJS
VueJS
Astro

Remix
React
MDX

Shadcn/ui
Flowbite
Preline
DaisyUI

SolidJS
SvelteKit

This site is made in Astro, with custom AI Chat Interface in React.

CSS Styling

Experience the Design System by changing the color theme, color mode, and font preferences. The design system is active throughout the whole site, including the React AI Chat messages.

Text Smoothing

Corner Smoothing

@layer architecture {
  /* BEM & ITCSS */
  /* SCSS, Styled Components, TailwindCSS & PostCSS */
  /* Bootstrap & MaterialDesign CSS */
}

Compatibility

PWA / Service Worker / Workbox
Content Security Policy & CORS
Electron + Capacitor (Ionic)
Modernizr & Browser APIs

Multimedia

Font, Image & Icon optimization
SVG & Lottie Animations
Motion & GSAP

Architecture

Design Systems with atoms, tokens, components catalogues & templates.
UI Design Patterns for dynamic and adaptive styling and versatile applications.
Incremental refactoring of codebases.

·•*(&&)*•·

Developer Experience (DX)

NPM
Gulp
Babel
WebPack
Vite
VsCode
CoPilot
EsLint
Prettier
StyleLint
Browserslist
Editorconfig

Quality Assurance

Sentry && TrackJS
BDD/TDD --Jest --Jasmine
Integration && Unit testing

—·¤·∞•«⟨≡&&≡⟩»•∞·¤·—