We are looking for smart, enthusiastic software engineers to take our marketing capabilities to the next level. Our critical in-house performance marketing platform, developed in Berlin, is used by marketing managers and data scientists from KAYAK brands around the world to optimize and scale their marketing activities. 

This role is focused on developing our programmatic optimization infrastructure through close collaboration with data science teams and other engineers. It will involve building and productionizing algorithms that run on a large scale using real-world data, in-house and partner APIs and developing platform features to deliver world-class marketing technology. If you're an experienced engineer who wants to work in a team of similarly talented, driven individuals, and enjoys being given the freedom to innovate, then we'd love to hear from you!


  • Develop and maintain the KAYAK/OpenTable performance marketing platform which hosts and manages all marketing optimization processes

  • Assist and enable productionization and deployment of performance marketing algorithms developed by data science teams

  • Designing scalable algorithmic platforms to run marketing technology workloads 

  • Integrate external APIs owned by data science teams

  • Build web UIs to expose new optimization features to end-users


Required Skills

  •  Bachelor's degree or higher, preferably in a quantitative/technical field (e.g. Computer Science, Engineering, Physics, Math)

  • 3+ years of application development experience using Python

  • Strong debugging, algorithm design, and problem-solving skills

  • Experience developing solutions alongside data science teams

  • Previous experience using data science libraries such as pandas, numpy and scikit-learn in production

  • Strong SQL experience

  • Great communication and collaboration skills 


Bonus Skills

  • Experience with developing web apps using JavaScript/TypeScript and modern JS frameworks (ideally React.js/Redux)

  • Knowledge of MySQL, Vertica, and Redis

  • Experience maintaining open source projects

  • Real-world usage of a Python web framework in production e.g. Django, Flask, FastAPI, etc

  • Prior experience running applications in Docker



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 others 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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