Maintaining and increasing the global scale for travellers

About is a travel metasearch engine for lodging reservations. It is owned and operated by and is the primary revenue source of United States-based Booking Holdings and is headquartered in Amsterdam. The website has over 28 million listings. The site is available in 43 languages. 

Year to year, they receive over 500.000 applications from across the world.’s challenge

If you want to be able to support every traveller, anywhere in the world – you will have to have a complete team of professionals supporting that mission. As with every company, the hiring needs are diverse, from Customer Service in all available languages to Developers and Data Scientists to work in the Amsterdam or Tel Aviv office.

In order to get, maintain and service the continuos inflow, had started working with a new career site vendor, Phenom People. 

"This proactivity and solution-driven mindset make Jelmer a unique talent that will thrive in every team that wants to improve and achieve more."

Ivan Raykov, Recruitment Marketing Manager


Our solution

True to our vision, we started with thoroughly assessing the setup, the performance of that setup, and possible improvements. Making sure that the numbers add up in all Analytics tools is the first step to success. Based on the correct and valid metrics, we were able to achieve several highlights, which you will find (briefly) described below. 


  • Analysed and optimised a global advertising campaign on Facebook, Instagram and the Google networks with over 1mio budget. 
  • Set-up the Internal Mobility career site, which is used by the 18.5k employees to find their next career move internally.
  • Overhauled the technical and UX side of the career site, which led to 112 tickets for the vendor, Phenom People – all closed with resolution. 
  • Improved the overall application rate 21%. Based on the dashboards created, we noticed a huge dip in applications on mobile. After a thorough investigation we found out that on some devices the ‘upload resume’ button didn’t pop-up as it should, which meant that a huge number of candidates were unable to complete their applications on their mobile phone. Quickly inserted a ticket in the support system, created a fix within 24 hours and increased the overall application rate with 21% and mobile application rate with 76%.


Applications yearly


supported employees on Internal Mobility platform


improvement in overall application rate


Tickets with improvements (based on data) created and solved


Way of working

The cooperation between us and was and is exceptional. Not a single day we didn’t feel like an employee, every day we felt part of the team. The effort makes for their employees is indescribable, just as the responsibility and freedom we’ve been given to carry out our investigations and improvements. We have been at for 2/3 days a week and a few evenings, as befits a “start-up”.