(Senior) Frontend Web Developer (m/f/d) - Vue.js

  • starting immediately
  • Cologne (Mediapark)
  • Permanent
  • Full-time

We are: THE experts of the first hours around domains. We have more than 20 years of experience in e-commerce and we work in interdisciplinary teams every day to create the best possible user experience for more than 2 million customers worldwide. Our common goal? Success that is sustainable! The IONOS group provides support in the background to achieve this goal.


As an experienced and passionate frontend developer, you want to play a central role in creating smart and innovative code and implementing new features that are used by millions of people worldwide? In an agile and informal team, you will play a significant and direct role in the company's success at Sedo and shape our domain marketplace, and thus the customer-facing gateway to our domain-related products and services.

Our technology stack:

  • JavaScript (Vue 3) for our new frontends and single page applications
  • REST APIs based on Java Spring Boot are our backends
  • Continuous Delivery System including Git, Helm and Jenkins
  • Google Analytics and Hotjar for analysis and feedback of our customers

Your tasks:

  • Shared responsibility for the creative design of our marketplace 
  • Designing and creating UI's for new applications as well as customizations, depending on UX feedbacks and research
  • Development and implementation of reusable and solid responsive frontend components
  • Identifying and troubleshooting performance and maintenance issues
  • Updating our applications to keep them on the cutting edge of technologies
  • Actively participating in agile work processes

Your profile:


  • Successfully completed studies in media informatics, successfully completed training as a media designer or comparable qualifications (career changer with relevant work experience)
  • At least 3 years of relevant experience as a frontend web developer
  • Excellent knowledge of HTML5, CSS3, SCSS, JavaScript, TypeScript as well as Vue.js (daily use)
  • Solid knowledge of mobile-first development and responsive layouts
  • Curiosity for technical innovations, hands-on, creativity and ability to work in a team
  • Very good language skills in English, German as a plus


  • Experience with unit and E2E testing
  • Experience with web analytics using Google Analytics or Hotjar
  • Experience with UI design tool Figma
  • Experience with CI e.g. Docker, Jenkins, Helm

Our benefits for you:

  • Work-life balance: trust-based working hours, home office, 30-day vacation entitlement, fitness offers
  • Environmentally friendly way to work: employer-financed Deutschland job ticket
  • Free choice of hardware: MacBook Pro or Dell notebook
  • Top offices: central location in the Mediapark and freshly renovated rooms with latest equipment
  • Personal development: individual training agreements
  • Attractive employee discounts: corporate benefits, ticketsprinter
  • Refreshments: coffee / tea / water, fresh fruits
  • Company events: summer, Christmas and team events
  • Rock-solid job in future proofed industry!


Sedo GmbH

Jeannine Böhringer-Hohnroth

Tel: +49 221 340 30 290

Web: www.sedo.de