"Love numbers" is one of KAYAK's core cultural values, and being the leading travel search engine worldwide means that we have a lot of numbers and data. Our marketing data science team uses that data to better enable KAYAK to share our product with travelers around the globe- we want to enable everyone to be confident in travel planning. 

Our team's projects can draw from the following skill sets: assembling data sources from square one, parsing and cleaning data, mining for insights, building and improving models, designing and running experiments, presenting results and giving recommendations to stakeholders outside our team, and driving business decisions or technical changes to our product. 


A sample of projects that our team at large works on include:

  • Building predictive models used by our in-house bidding platform 

  • Building reporting solutions to monitor performance metrics across marketing channels.

  • Forecasting business KPIs, optimizing budget allocation across marketing channels

  • Running experiments for impact and user journey analyses. 

  • On the cutting edge of marketing, we use NLP and image processing techniques to optimize ad creatives and landing pages.


We are looking for a “full-stack” data scientist with an emphasis on machine learning and algorithm development to join our team. An ideal candidate will take full ownership of researching and developing machine learning models and deploying them in production while bringing stakeholders on board with evidence-based reasoning and compelling storytelling.


This position will be based in our Berlin, Germany office near Osbahnhof station.


What we’re looking for

  • Ability to write high quality, scalable, maintainable code (we use Python)

  • A storyteller's approach to analysis: not satisfied at only "what", but "why?", "how?", and "what next?"

  • Extensive experience with data manipulation and extraction using relational databases. 

  • Motivation to work with datasets with real-life uncertainties and complexities.

  • Desire to develop and iterate on algorithms that will have immediate business impact. 

  • Extensive experience with building mathematical models for real-world events/scenarios 

  • Loves problem solving and developing creative, tailored approaches 

  • Great communication skills- capable of bridging business and technology

  • 2+ years of industry experience in a related role

  • Experimental design experience is a plus



At KAYAK we help millions of travelers around the globe make confident travel decisions. KAYAK searches other sites to show travelers the information they need to find the right flights, hotels, rental cars and vacation packages and is the world's leading travel search engine.

As an employee of KAYAK, you will be part of a global network that includes OpenTable and KAYAK's portfolio of metasearch brands including Swoodoo, checkfelix, momondo, Cheapflights, Mundi and HotelsCombined. Many employees are dedicated to one brand, but we all have the benefit of using each other's strengths and insights. Together, we're able to help people experience the world through dining and travel.

KAYAK is part of Booking Holdings Inc. and operates sites in more than 60 countries and territories.


Benefits and Perks

  • 6 weeks paid vacation

  • Day off on your birthday

  • Generous retirement plans

  • Annual education budget *

  • Free lunch catering three days per week *

  • Public transportation subsidies *

  • Free German classes *

  • Free Yoga classes *

  • Free massages from Wellnow *

  • No stupid meetings

  • Drinks, coffee, snacks, games etc

  • Regular team events and volunteering opportunities

  • Sport teams (Football, Volleyball, Basketball)

  • Flexible hours

  • In-house gym facilities

  • Universal paid parental leave

* currently paused due to COVID


Diversity and Inclusion at OpenTable/ KAYAK


We aspire to have a workplace that reflects all of the diverse communities we serve. We know that when we have diverse teams we produce more innovative ideas, products, services, and better business outcomes for our stakeholders. OpenTable/KAYAK is proud to be an Equal Opportunity Employer and we welcome and encourage candidates from all backgrounds and experiences to apply for roles on our team.  Whoever you are, just be you.

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.

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