Technical role focused on a lot of coding, quick turn around, and very dynamic continuous feature rollout. Usually involves building a solution a couple times to find the good way of doing things and combining input from multiple stakeholders. Requires a wide range of experience with various libraries, frameworks and technologies. It involves a lot of transparency, gathering needs, doing presentations and communicating with different developers to ensure tools and practices are adapted by various teams. Very limited product work and heavily geared towards UI tools, website performance and coding. Typical time slit 90% frontend and 10% backend. 

Responsibilities & Challenges
  • Oversee, optimise and improve modern custom UI stack and build scripts;
  • Improve, upgrade and maintain UI rendering framework (React, Node Js, Java, Less);
  • Profile and improve performance of server side and client side;
  • Monitor UI server rendering health and prevent or fix issues, memory leaks;
  • Drive technical debt reduction, oversee code quality and influence other developers;
  • Build developer tooling, research new technologies and solutions and integrate them;
  • Refactor and optimise existing code, standardise, create architecture and prototype software solutions between teams;
  • Working with geographically distributed teams;
  • Analyse data and run experiments.


  • 5+ years of significant responsibility for the design, implementation, testing and deployment of complex web applications;
  • Demonstrable mastery of JavaScript/HTML/CSS;
  • Advanced experience working with Node Js and Node React server side rendering;
  • Experience with one or more front-end frameworks: React, Angular, Vue, etc;
  • Deep knowledge of UI performance considerations, with respect to browsers, UI frameworks and rendering techniques;
  • Experience with JS unit testing libraries and approaches;
  • Bachelor's degree or higher, preferably in a quantitative/technical field (e.g. Computer Science, Engineering, Physics, Math);
  • Experience working in Java, C#, or a similar object-oriented language;
  • Motivated goal seeker, always open for improvement.


KAYAK, part of Booking Holdings (NASDAQ:  BKNG), is the world’s leading travel search engine. With billions of queries across our platforms, we help people find their perfect flight, stay, rental car, cruise, or vacation package. We’re also transforming the in-travel experience with our app and new accommodation software. For more information, visit

As an employee of KAYAK, you will be part of a global network that includes OpenTable and KAYAK's portfolio of meta-search brands including momondo, Cheapflights, Swoodoo, checkfelix and Mundi. 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.


Benefits and Perks

  • 6 weeks paid vacation

  • Day off on your birthday

  • We offer flexible working policy so you can work from anywhere in Germany or join us in our office in Berlin.

  • Free lunch catering 2 days per week and all the snacks you need 

  • Generous retirement plans

  • Universal paid parental leave

  • Public transportation subsidies

  • Bike leasing possibility 

  • German classes 

  • Free massages 

  • Regular team events and volunteering opportunities

  • Sport teams and in-house gym 


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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