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Senior Fullstack Developer, Accessibility team

Copenhagen, Full-Time

Solving accessibility is NP-hard

The Task

Develop software that can analyze HTML and the associated CSS and JavaScript and determine precisely what elements makes that web page not accessible.

Make sure the results are presented by the software so that a diverse group of professionals: Content writers, developers and UX/UI designers, all understand and can take action on them.

Ensure this can be done 10+ million times a day - every day, without interruptions.

If this has peaked your professional interest, and your skillset and experience is up for the task, then Team Accessibility is the right place for you.


  • Develop and maintain large scale application code, frontend and backend, with Team Accessibility
  • Work together with the product owner, UX/UI designers, operations specialists, testers and fellow developers to shape nothing less than great solutions for our customers, based on high quality standards and focused on adding genuine customer value.
  • Take part in and improve on the way we develop software
  • Understand what other teams are doing, help them, take action when you see problems on the horizon

What we require of you

  • Have at least a few years of professional experience building real software solutions.
  • Experience with large cloud-based solutions.
  • Be outstanding with a modern programming language, frontend and back-end.
  • Be fluent in spoken and written English.
  • Thrive working in an iterative development process, being a strong, problem-solver both independently and in teams.
  • Be proud of what you deliver to end users.

What we'll love about you

  • A passion for building accessible interfaces that everyone, regardless of ability or disability can use.
  • You have practical knowledge of agile development and continuous delivery.
  • You are equipped to challenge and tune our processes, and you are ready to mentor us in your favorite practices.
  • That you’re a self-driven, creative, inquisitive individual possessing lots of drive, aiming to join a team of skilled colleagues, whom you can inspire, and who can inspire you towards delivering a world class product

We use Slack for a lot of our communication. If you are up to the task of adding another Slackbot to our system, let us know! We also have an internal Raspberry Pi project that always could use a new feature.

The Siteimprove toolbox

  • C#, JavaScript, Typescript, SQL, ASP.NET MVC, React, jQuery, Knockout
  • AWS, Kubernetes, Docker, Mesos, Marathon, Kafka
  • Redis, CloudFormation, Terraform, bash

Of all the tools in our tool box, C#/.NET and JavaScript are the most used, so we expect high proficiency with those.

We value general skills and experience higher than any specific technology, and technology stacks should always be challenged, improved and renewed. If you have an interest in any of the above, or if you have something to add, we will consider that a bonus.

What You'll Love About Us

Siteimprove is a Danish-founded multinational company with over 500 employees worldwide. In addition to our headquarters in Copenhagen, we have offices in Minneapolis, London, Berlin, Vienna, Amsterdam, Oslo, Sydney, and Toronto, and our customers are spread across North America, Europe, and Australia.

Even though we’ve grown rapidly since our foundation back in 2003, we’ve maintained our entrepreneurial spirit and strong feeling of togetherness. Read more about the Siteimprovers and our inclusive and global “work hard, play hard” culture in this section here:

We also offer amazing perks!

  • Great and Inspiring Company Culture. We are passionate, innovative and people-centric. We’re consistently named as a great place to work across the globe.
  • Amazing Kitchen Staff. Our celebrity head chef and his kitchen staff cook delicious lunch for us every day. There’s always cake on Fridays and on special occasions and celebrations (which, luckily, is quite often). Naturally, we offer free coffee, free sodas and free fruit ad libitum, plus there’s opportunity to buy food to take home at extremely reasonable prices
  • Outstanding Office Location. We are located in the heart of Copenhagen in a beautiful building sometimes referred to as “the Palace” by our employees.
  • Own Friday Bar. On the top floor, we have our very own Friday Bar with quality beverages. In the summer, we may take the party to our cozy courtyard for barbecuing in the sun.
  • Coding Club, Events, and Workshops. The Coding Club meets weekly (pizza and beverages on the house), and we regularly throw in-house events and workshops.
  • Corporate Social Responsibility. We do various activities to be a good corporate citizen, and we are very proud to be a socially responsible company, internally and externally.

How To Apply

Click on the ‘Apply Now’ button to submit your application. If you have any questions regarding the job or need a reasonable accommodation to apply, feel free to contact our Talent Acquisition Specialist Jacob Bjerrehuus at +45 3161 6742.

Siteimprove is a global corporation and has developed data practices designed to assure your personally-identifiable information is appropriately protected. Please note that personal information may be transferred, accessed and stored globally as necessary for the uses and disclosures stated in accordance with our Privacy Policy at

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