Robert
Jansen
 (marTech
&&
dev)

Frontend Development

For any device

Architecture

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

Specialty Areas

  • Rendering, Web performance
  • Build optimization
  • Technical SEO
  • Accessibility (a11y)
  • Globalization (g11n), Internationalization (i18n) and Localization
·~•◁[≈&&≈]▷•~·

Agnostic in JS Frameworks

  • NuxtJS
  • VueJS
  • Astro
  • SolidJS
  • SvelteKit
  • Remix
  • React
  • MDX
  • Shadcn/ui
  • Flowbite
  • Preline
  • Basecoat
  • DaisyUI

See detail package.json

CSS Styling

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

Build Tools

  • NPM
  • Gulp
  • Babel
  • WebPack
  • Vite

Developer Experience

  • VsCode
  • EsLint
  • Prettier
  • StyleLint
  • Browserslist
  • Editorconfig

Quality Assurance

quality assurance
StoryBookJS
Sentry && TrackJS
BDD/TDD --Jest --Jasmine
Integration && Unit testing
·¤·∞•«⟨≡&&≡⟩»•∞·¤·