Sebastian Werner

20 years of experience with web techno­lo­gies. Loves clean designs and smart inter­faces. Visio­nary, inventor & do-gooder. Autodi­dact, critic & mentor. Initiator and long-time developer of UI frame­works and tooling solutions. With a passion for automa­tion, excellent typography and outstanding user experi­ence. Quality oriented. Focused. Nay-Sayer.


  • Technical team leader, project manager and leading frontend archi­tect.
  • Inter­na­tional projects in multi­lingual teams and for users from different countries.
  • Speaker at national and inter­na­tional confe­rences.
  • Sparring partner for designers / UX people due to extensive knowledge in adjacent areas and an eye for detail.
  • Archi­tec­tural management of the qooxdoo framework for Rich-Internet-Applications at 1&1.
  • Initiation and evangelist of the Unify framework for mobile web appli­ca­tions at Deutsche Telekom.
  • Intro­duction of modern HTML5 frontend solutions at Zynga: The basic framework Core and the compre­hensive tooling solution Jasy. Both OpenSource.
  • Development of Edge Platform in the course of consulting in the React environ­ment.


  • Telecom­mu­ni­cation
  • Internet Agencies
  • Internet Portals
  • Online Shops
  • Hardware Manufac­turer
  • Online Games
  • Social Networks
  • Logistics Companies


  • Large and complex web appli­ca­tions: Mobile devices, desktops, set-up boxes.
  • Tooling for web projects: developer support, automa­tion, deploy­ment, versio­ning, testing.
  • Responsive Design: Break­points, Viewport Units, Mobile Websites.
  • Typography: embedding of web fonts, use of modular scales, baseline grids.

Current Focus

  • JavaS­cript / ES2015+
  • ReactJS, Redux, React Motion
  • Anima­tion, Typography, Responsive Design, User Experience
  • Perfor­mance Optimi­zation
  • GraphQL with Apollo
  • PostCSS & CSS Modules
  • Webpack and Babel, Prettier and ESLint
  • Progressive Web Apps (PWA)
  • Server Side Rendering (SSR)