Senior Web Frontend Developer (m/f/d)

Festanstellung, Vollzeit · Barcelona

Your mission
As a ​Senior Web Frontend Developer, you implement digital products and their functionality. You are responsible for bringing digital ideas to life.

You are doing this with us:
  • Planning user interface solutions for individual features and whole sites for customers
  • Building new websites and online stores, and improving existing platforms
  • Extending and improving our shared component library
  • Coordinating task and project statuses directly with customers, also in agile sprints
  • Reviewing change proposals of others and giving constructive feedback
  • Analyzing and optimizing the web frontend performance
  • Integrating with web services
  • Contributing features and fixes to third-party libraries
  • Implementing automated tests
  • Reviewing third-party sites as part of audits for our customers
Your experience
You have valuable experience with:
  • Programming JavaScript, HTML5, CSS, Sass, Twig, and PHP
  • Building modular and reusable component libraries
  • Frontend web frameworks like Next.js, Nuxt.js, Sveltekit, or similar
  • UI libraries like React, Vue, Svelte, or Web Components
  • GraphQL queries and RESTful API requests
  • Developing shared packages (ideally published publicly like our packages)
  • Craft, WordPress, Drupal, or other CMS
  • WooCommerce or comparable e-commerce platforms
  • Implementing custom Gutenberg blocks
  • HTTP caching operating principles
  • Understanding foreign code bases
  • Best practices and writing clean code
  • Participating in code reviews and discussions about architecture and design
  • Spoken and written English on a professional level
Our Tools
You are familiar with these tools:
  • Peer review and version control platforms like GitHub, Chromatic
  • Component library UIs like Storybook, Fractal, Patternlab
  • Command line tools like Git, npm, gulp, Webpack, SSH
  • Continuous integration platforms like Netlify, GitHub Actions
  • Project management tools like Asana
  • Collaboration tools like Slack and Google Apps (GSuite)
  • Documentation tools like Notion
The results
This comes out of your work in the end:
  • Solid responsive layouts and interactions
  • Functionality that is well-tested and resolves the needs of the customer
  • An implementation approach that can be maintained and updated easily
  • Code that is clean and can be understood and extended by others
  • Time estimates that are reliable
Your peers
You'll be working with these folks:
  • Project Manager
  • UX- & UI designer
  • Digital Business Consultants
  • Marketeers
Our promise
  • This is what we live every day:
    • Independent and self-responsible work is part of our DNA. Flexible working hours and home office are absolutely natural for us – we see our work as a very important part of life. But only as a part that should fit flexibly with the rest.
    • You will find a set of values that we love and live every day.
    • You’ll meet a colourful international team full of digital enthusiasts who burn for their subjects – just like you do.
    • A mentor will give you regular feedback. As we are constantly changing and try to get a little better every day, we would like to see the opposite. Get involved and let us know if we miss a step and what we can do better.
    • There is fresh fruit, coffee and soft drinks in all offices. We also meet every Monday for lunch together.
    • Togetherness is important to us: we meet for team activities and joint workshops alternately in our offices in Karlsruhe, Cologne and Barcelona.
    • You enjoy further education and we support you in this – with language courses, conference visits and further qualifications.
    • We are fond of animals: Dogs can be brought to the office after getting to know them. Currently, the Karlsruhe office offers fish and a fluffy dog.
    • You will have 28 days of holidays. You can enjoy them when it fits best in your calendar.
    • We make sure that you can work under the best conditions: Laptop, mobile phone contract, the right hardware, train ticket or job bike – ride with us!
Start date: Immediately
Model: Hybrid (2 days working at the office)
Location: Barcelona or Karlsruhe
Salary range:  48,000 – 72,000 EUR/anno
Required experience: Minimum 8 years experience in the field
About us
We cover the digital shift of our clients. Since we believe that a solid business strategy can only thrive when all aspects of the digital world are considered, we need hands-on experts for all digital disciplines to achieve this. Our services entail digital analytics, strategic planning, project management, UX/design, development, marketing and the education of our client’s employees.

We have offices in Karlsruhe, Cologne and Barcelona and alongside netzstrategen more companies belong to our family to complete our clients’ digital workbench and of our own products and businesses.
Our clients are from many different industries and sizes; we are working for big health corporations as well as small local retailers. We are independent from our clients and other institutions - so we don’t have to answer to nobody but to ourselves. This allows us to work with an open and honest attitude when it comes to suggestions for strategies and implementations. Our clients appreciate this a lot.
Honesty and sincerity are enormously important to us und we live our values in our daily work. We all like coming to our offices, to see our clients and our colleagues. Our community is important to us and we invest time and energy in nurturing it. Work to us is more than just bashing stones for a dime :-)
We try to make decisions together in the company; in our weekly lunch meetings, in our frequent plannings or in our bi-annual cross company workshop, where we all come together physically or virtually to spend some time together and try to keep the companies on the right path.
Our compensation model is one of the results of these discussions. It defines perks, benefits and extras and helps to define an entry salary as well as the minimum growth - so nobody is forced to press this topic. So far our experience with this model is very positive.
Sounds like your thing? Then we look forward to hearing from you!
Wir freuen uns auf deine Bewerbung!
Danke, dass du dich für unsere Firma interessierst und mit dem Gedanken spielst, unser Team zu verstärken. Bitte fülle uns die folgenden Felder aus, damit wir dich ein wenig kennenlernen können. Solltest du Probleme damit haben oder der Upload deiner Unterlagen nicht klappen, dann schick uns einfach eine Mail an

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