Backend Java Developer for Innovative Flight, Hotel, Rental Car Search System

4 days ago


Copenhagen, Copenhagen, Denmark momondo Full time

We're KAYAK, the world's leading travel search engine, and we're seeking a skilled Backend Java Developer to join our team. In this role, you'll be responsible for designing and implementing high-performance Java applications, developing and maintaining existing integrations with third-party APIs, and collaborating with cross-functional teams to deliver scalable solutions.

About the Role:
  • Design and implement high-performance Java applications
  • Develop and maintain existing integrations with third-party APIs
  • Collaborate with cross-functional teams to deliver scalable solutions

We're passionate about travel and building outstanding user experiences. If you have a strong background in Java, are comfortable in a fast-paced startup environment, and enjoy solving complex problems, we'd love to hear from you.

Requirements:
  • Bachelor's degree or higher in Computer Science or related field
  • Strong knowledge of Java and its data structure, concurrency, and OOP patterns
  • Experience with high-performance and scalable Java implementation
  • Knowledge of SQL, HTTP, XML, JSON
  • Solid experience working on APIs
Benefits:
  • 4 weeks paid vacation
  • Ability to work from almost anywhere
  • Day off on your birthday
  • Generous retirement plans
  • Awe-inspiring health, dental, and vision insurance plans
  • Flexible Spending Accounts
  • Headspace Subscription
  • No Meeting Fridays
  • Drinks, coffee, snacks, games, etc.
  • Weekly catered lunches
  • Flexible hours
  • Regular events/excursions
  • Universal Paid Parental leave
About Us:

We're proud to be an Equal Opportunity Employer and welcome candidates from all backgrounds and experiences to apply for roles on our team.



  • Copenhagen, Copenhagen, Denmark momondo Full time

    at KAYAK Concord 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...


  • Copenhagen, Copenhagen, Denmark momondo Full time

    at KAYAK Concord 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...


  • Copenhagen, Copenhagen, Denmark momondo Full time

    At momondo, a part of Booking Holdings (NASDAQ: BKNG), we're 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...


  • Copenhagen, Copenhagen, Denmark momondo Full time

    Company Overview:KAYAK, part of Booking Holdings (NASDAQ: BKNG), is the world's leading travel search engine. We help people find their perfect flight, stay, rental car, cruise, or vacation package.We're transforming the in-travel experience with our app and new accommodation software. Our technology integrates with over 200 travel partners and links to over...


  • Copenhagen, Copenhagen, Denmark momondo Full time

    About KAYAK:KAYAK is a world leading travel search engine. We're passionate about helping people find their perfect trip. We integrate with over 200 travel partners and link to over 500,000 hotels, 550 airlines, and 1000 rental car companies. Our goal is to make travel easier and more enjoyable.We're looking for a skilled Java developer to join our team. As...


  • Copenhagen, Copenhagen, Denmark momondo Full time

    We're seeking an experienced Java backend developer to join our team at KAYAK Concord. As a key member of our Hotel Search Team, you will be responsible for implementing new features, improving existing ones, and maintaining our integrations with third-party APIs. Our team is passionate about building outstanding user experiences, and we're looking for...


  • Copenhagen, Copenhagen, Denmark momondo Full time

    We are looking for a seasoned Java backend developer to join our team at KAYAK Concord. As a key member of our Hotel Search Team, you will be responsible for implementing new features, improving existing ones, and maintaining our integrations with third-party APIs. Our team is passionate about building outstanding user experiences, and we're looking for...


  • Copenhagen, Copenhagen, Denmark momondo Full time

    We're KAYAK, the world's leading travel search engine, and we're looking for a talented Java software engineer to join our team. As a Java developer, you'll play a critical role in helping us deliver innovative flight, hotel, and rental car search solutions.About the Role:Implement new features and improve existing ones using JavaBuild and maintain...


  • Copenhagen, Copenhagen, Denmark momondo Full time

    Company OverviewKAYAK, part of Booking Holdings, 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.

  • Java Engineer

    2 weeks ago


    Copenhagen, Copenhagen, Denmark momondo Full time

    At KAYAK Concord, 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...


  • Copenhagen, Copenhagen, Denmark momondo Full time

    We integrate with over 200 travel partners and link to over 500,000 hotels, 550 airlines, and 1000 rental car companies.You will be an essential part of a high-powered team that keeps all of this running efficiently – helping millions of people find the best hotels and rental cars and the best ways to fly from A to B every day.

  • Cars Product Lead

    6 days ago


    Copenhagen, Copenhagen, Denmark momondo Full time

    We are looking for a Cars Product Lead to join our team at KAYAK. As a Product Lead, you will be responsible for defining and prioritizing user problems and needs, and crafting requirements that facilitate meaningful product improvements.About the CompanyKAYAK is part of Booking Holdings (NASDAQ: BKNG), the world's leading online travel agency. We help...


  • Copenhagen, Copenhagen, Denmark momondo Full time

    Company OverviewKAYAK Cambridge, part of Booking Holdings (NASDAQ: BKNG), is the world's leading travel search engine.We help people find their perfect flight, stay, rental car, cruise, or vacation package.


  • Copenhagen, Copenhagen, Denmark momondo Full time

    **About KAYAK**KAYAK is the world's leading travel search engine, helping 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.We're looking for a seasoned professional to join our AdTech team in Concord, MA as a Principal Product Manager....


  • Copenhagen, Copenhagen, Denmark momondo Full time

    KAYAK is a leading travel search engine that helps people find their perfect flight, stay, rental car, cruise, or vacation package. We're seeking a Senior Director of Product Management to lead our Apps, AI, and Customer Acquisition & Retention Teams.In this role, you will manage the innovation and development of some of KAYAK's most groundbreaking products...


  • Copenhagen, Copenhagen, Denmark momondo Full time

    Company OverviewKAYAK Cambridge 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 transforming the in-travel experience with our app and new accommodation software. For more information, visit www.kayak.com.


  • Copenhagen, Copenhagen, Denmark momondo Full time

    KAYAK is the world's leading travel search engine. We're looking for a skilled Java developer to help improve our backend technology. In this role, you'll be responsible for implementing new features, improving existing ones, and building integrations with third-party APIs.Key Responsibilities:Design and implement high-performance Java applicationsDevelop...


  • Copenhagen, Copenhagen, Denmark momondo Full time

    About UsKAYAK is the world's leading travel search engine, helping people find their perfect flight, stay, rental car, cruise, or vacation package.We're part of Booking Holdings (NASDAQ: BKNG) and have a global network that includes OpenTable and KAYAK's portfolio of metasearch brands.Our MissionWe're transforming the in-travel experience with our app and...


  • Copenhagen, Copenhagen, Denmark VP SECURITIES AS Full time

    We are seeking a skilled backend developer to join our team at VP SECURITIES A/S. As a key member of our cross-functional team, you will play a crucial role in designing and developing new services using Java to meet critical product and business needs.Our products are designed to simplify and automate corporate needs in regulatory compliance. With a strong...


  • Copenhagen, Copenhagen, Denmark momondo Full time

    Join Our Team:Are you passionate about travel and building outstanding user experiences? Do you want to work on a high-impact project that changes the way people travel? Join us at KAYAK!We're a dynamic and innovative team that values creativity, teamwork, and problem-solving. We're committed to making travel easier and more enjoyable. As a Java developer,...