World's leading travel search engine, part of Booking Holdings, operating global metasearch brands including momondo, Cheapflights and HotelsCombined.

KAYAK, the world's leading travel search engine and part of Booking Holdings, is seeking a Frontend Software Engineer to join their innovative team in Berlin. This role offers an exciting opportunity to impact millions of travelers through the development of compelling user experiences. As part of KAYAK's engineering team, you'll work on a portfolio of global metasearch brands including momondo, Cheapflights, and HotelsCombined.

The position requires a mix of technical expertise in React, TypeScript, and web development, combined with a passion for travel and innovation. You'll have the chance to participate in Hack Weeks, develop new features, and work with cutting-edge travel technology. The role offers significant autonomy in making architectural decisions and building prototypes while collaborating with cross-functional teams.

KAYAK offers an impressive benefits package, including flexible work arrangements with 20 remote work days annually, comprehensive mental health support, generous vacation time, and professional development opportunities. The Berlin office, located in Friedrichshain, provides an energetic environment with regular social events, free lunches, and various lifestyle perks.

The company strongly values diversity and inclusion, fostering an environment where different perspectives drive innovation. This hybrid role requires at least 3 days in the Berlin office, making it perfect for someone who appreciates both collaborative office culture and flexibility. If you're passionate about travel, technology, and creating impactful user experiences, this role offers an excellent opportunity to grow your career with a leading travel technology company.

Frontend Software Engineer position at KAYAK, developing travel search experiences for millions of users with React and TypeScript in Berlin.

Frontend Software Engineer

KAYAK, a subsidiary of Booking Holdings and the world's leading travel search engine, is seeking a Senior Java Engineer to join their Reviews & SEO Backend team. This role offers an exciting opportunity to work on high-impact systems serving millions of users daily, focusing on user reviews, SEO, and AI-driven projects.

The position combines technical excellence with business impact, requiring expertise in Java development, Spring framework, and database systems. You'll be working in a dynamic environment where innovation is paramount, contributing to a platform that processes billions of queries across multiple travel brands including momondo, Cheapflights, and HotelsCombined.

The compensation package is competitive, starting from 3,260 EUR to 5,166 EUR gross monthly, complemented by annual bonuses and valuable RSU grants. The company offers a comprehensive benefits package including flexible work arrangements, health insurance, mental health support, and various lifestyle perks.

Working at KAYAK means joining a company where every employee has the opportunity to make their mark. The hybrid work environment promotes both collaborative innovation and individual contribution, with a strong focus on work-life balance. The company's commitment to diversity and inclusion ensures a welcoming environment where different perspectives are valued and celebrated.

This role is perfect for a senior engineer who wants to impact how millions of people experience travel while working with cutting-edge technologies in a supportive, growth-oriented environment.

Senior Java Engineer position at KAYAK, focusing on building scalable backend systems for reviews and SEO, offering competitive compensation and comprehensive benefits.

Senior Java Engineer

World's leading travel search engine, part of Booking Holdings, helping people find flights, stays, rental cars, cruises, and vacation packages.

KAYAK, a Booking Holdings company, stands as the world's premier travel search engine, processing billions of queries across its platforms. We're seeking a Java Backend Developer to join our dynamic Flights team in Kaunas. This role is crucial in maintaining and enhancing our world-leading search and booking technology that connects travelers to over 200 travel partners, 500,000 hotels, 550 airlines, and 1000 rental car companies.

As a Backend Developer, you'll be instrumental in developing high-performance systems, implementing new search integrations, and ensuring scalable solutions that help millions of travelers find their perfect journeys. The position offers a competitive compensation package, including a base salary ranging from 2700 to 3990 EUR monthly, annual bonuses, and valuable RSU packages worth $20,000.

We offer a flexible hybrid work environment requiring 3 days in our Kaunas office, complemented by comprehensive benefits including health insurance, mental health support, career development opportunities, and unique perks like work-from-anywhere days and no-meeting Fridays. Our inclusive culture celebrates diversity and encourages authentic self-expression.

The ideal candidate will bring strong Java expertise, experience with API design, and a solid foundation in computer science. You'll work with modern technologies including MySQL, Redis, and Kafka, contributing to systems that process massive amounts of travel data daily. If you're passionate about travel, technology, and creating exceptional user experiences, this role offers an exciting opportunity to shape the future of global travel technology.

Java Backend Developer position at KAYAK, working on flight search systems and API integrations, offering competitive salary and comprehensive benefits in Kaunas.

Java Backend Developer

KAYAK, a subsidiary of Booking Holdings (NASDAQ: BKNG), stands as the world's premier travel search engine, revolutionizing how people discover and book their travel experiences. As part of their dynamic team, you'll contribute to a platform that processes billions of queries, helping travelers find perfect flights, accommodations, rental cars, cruises, and vacation packages.

The role of Python Backend Developer offers an exciting opportunity to work with a global network that includes renowned brands like OpenTable, Swoodoo, checkfelix, momondo, Cheapflights, Mundi, and HotelsCombined. You'll be instrumental in structuring and integrating data from various marketing sources, collaborating with cross-functional teams, and building scalable applications that impact millions of users.

The position offers a competitive compensation package, including a base salary of 4000 EUR monthly, annual bonuses of approximately 10%, and valuable Booking Holdings RSU package worth $20,000 USD. The company provides an impressive array of benefits, from flexible work arrangements and comprehensive health coverage to professional development opportunities and unique perks like free yoga sessions and no-meeting Fridays.

This role is perfect for a mid-level developer with strong Python expertise and a passion for building robust backend systems. You'll be joining a company that values diversity and inclusion, actively working to create a workplace that reflects the diverse communities it serves. The collaborative environment, coupled with the opportunity to work on cutting-edge travel technology, makes this an excellent opportunity for career growth and development.

Mid-level Python Backend Developer role at KAYAK, building and scaling travel search applications with competitive compensation and comprehensive benefits.

Python Backend Developer

KAYAK, a Booking Holdings company, stands as the world's premier travel search engine, processing billions of queries across their platforms. They help travelers find optimal flights, accommodations, rental cars, cruises, and vacation packages. The company is seeking a Java Backend Developer to join their dynamic Flights team in Kaunas.

The role involves working with a sophisticated system that integrates with over 200 travel partners, connecting to 500,000+ hotels, 550 airlines, and 1000 rental car companies. As a backend developer, you'll be crucial in maintaining and improving their world-leading search and booking technology, directly impacting millions of travelers' experiences.

The position offers a hybrid work environment, requiring at least 3 days per week in the Kaunas office, while providing flexibility with up to 20 days of remote work annually. The company provides an impressive benefits package, including career development opportunities, comprehensive health coverage, mental health support, and various lifestyle perks such as free yoga sessions and lunch benefits.

KAYAK fosters a diverse and inclusive workplace, welcoming candidates from all backgrounds. They offer a collaborative environment where you'll work with cross-functional teams, implement new search integrations, and optimize high-performance systems. The ideal candidate should have strong Java expertise, experience with various technologies like SQL, Redis, and Kafka, and a passion for creating outstanding user experiences in the travel industry.

This opportunity allows you to be part of a global network that includes renowned brands like OpenTable, Swoodoo, checkfelix, momondo, and others, while contributing to technology that helps people experience the world through travel.

Java Backend Developer position at KAYAK, working on travel search and booking technology, hybrid work in Kaunas office, competitive benefits.

World's leading travel search engine operating global metasearch brands, part of Booking Holdings.

KAYAK, a subsidiary of Booking Holdings (NASDAQ: BKNG), stands as the world's premier travel search engine, revolutionizing how people discover and book their travel experiences. As a Senior Android Engineer, you'll join a dynamic team that powers multiple global metasearch brands including momondo, Cheapflights, and HotelsCombined.

The role offers an exciting opportunity to shape the future of travel technology, working on large-scale, consumer-facing mobile applications that serve billions of queries. You'll be instrumental in architecting and developing innovative features while maintaining high-quality standards for code and products. The position requires expertise in Java, Kotlin, and the Android Framework, with a strong emphasis on creating scalable solutions and maintaining excellent user experiences.

The company offers an attractive compensation package, including a competitive base salary, annual bonuses, and valuable Booking Holdings RSU packages. KAYAK's comprehensive benefits include flexible working arrangements, generous healthcare coverage, and unique perks like company-wide week off and no-meeting Fridays.

What sets this opportunity apart is KAYAK's commitment to innovation and personal growth. From its roots as a start-up to its current position as an industry leader, the company maintains a culture where every employee can make their mark. The hybrid working model provides flexibility while maintaining collaborative team dynamics, and the company's strong focus on diversity and inclusion ensures a welcoming environment for all professionals.

For engineers passionate about travel technology and seeking to impact how millions of people experience the world, this role offers the perfect blend of technical challenges, growth opportunities, and work-life balance.

Senior Android Engineer position at KAYAK, developing innovative features for the world's leading travel search engine using Java and Kotlin.

Senior Android Engineer

KAYAK is the world's leading travel search engine, part of Booking Holdings, helping people find their perfect flight, stay, rental car, cruise, or vacation package.

KAYAK, a Booking Holdings company, is the world's leading travel search engine revolutionizing the travel industry. We're seeking Java backend developers to enhance our cutting-edge search and booking technology. As part of our Flights team, you'll develop, maintain, and optimize backend systems, implement new search integrations, and collaborate with cross-functional teams to deliver high-performance, user-friendly experiences. You'll work with a vast network of travel partners, connecting millions of travelers to the best flights, hotels, and rental cars daily.

We offer a dynamic work environment with a hybrid model, requiring at least 3 days per week in our Concord office. You'll be part of a global network including OpenTable and KAYAK's portfolio of metasearch brands, benefiting from shared strengths and insights across the group.

Key responsibilities include:
- Developing and maintaining backend systems using Java
- Implementing new search integrations with third-party APIs
- Optimizing existing features for high performance
- Writing clean, maintainable, and efficient code
- Troubleshooting, debugging, and performance optimization
- Ensuring system quality and scalability

We're looking for candidates with:
- Proven experience as a backend Software Engineer
- Strong proficiency in Java and in-depth knowledge of data structures, concurrency, and OOP patterns
- Experience with API design and implementation
- Hands-on experience with SQL, HTTP, XML, JSON
- Ability to work independently in a fast-paced environment
- Bachelor's degree or higher in Computer Science or related field

Bonus skills include experience with Spring, MySQL, Git, Redis, or Kafka, and knowledge of cloud platforms (AWS).

At KAYAK, we offer excellent benefits including 4 weeks paid vacation, flexible work locations, generous retirement plans, comprehensive health insurance, and a variety of perks like weekly catered lunches and regular events. We're committed to fostering a diverse and inclusive workplace that reflects the communities we serve.

Join us at KAYAK and help shape the future of travel while working with cutting-edge technology in a collaborative, innovative environment.

KAYAK seeks Java backend developer for Flights team to enhance travel search technology, offering hybrid work and excellent benefits.

KAYAK is the world's leading travel search engine, helping people find their perfect flight, stay, rental car, cruise, or vacation package.

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.

KAYAK is looking for Java backend developers to help improve and maintain our world-leading search and booking technology! 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!

In this role, you will:
- Implement new backend search and booking features for Hotel Search Team
- Improve existing features with an eye towards speed and user experience
- Build and maintain existing integrations with third-party APIs

Requirements:
- A proven software engineer with backend experience
- Strong knowledge of Java and its data structure, concurrency and OOP patterns, and API design
- Comfortable in a fast-paced startup environment
- Hands-on and self-motivated
- Bachelor's degree or higher in Computer Science or related field
- Experience with high performance and scalable Java implementation
- Experience with SQL, HTTP, XML, JSON
- Solid experience working on APIs
- Bonus Points: Spring, MySQL, Git, Redis, Kafka

Benefits and Perks:
- 4 weeks paid vacation
- Ability to work from almost anywhere
- Day off on your birthday
- Generous retirement plans
- Awesome 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

This role will be required to work from our Concord, MA office at least 3 days per week.

Join us at KAYAK and help shape the future of travel!

KAYAK is seeking a Java Search Engineer to develop and maintain world-leading travel search and booking technology.

Java Search Engineer

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.

KAYAK is seeking a skilled Java software engineer to join our Affiliates Integrations team. We have a wide range of products targeted for our affiliates, ranging from deep links and search widgets to APIs. All of these products are powered by the same search engines that provide search results for millions of KAYAK's users. The Affiliate Integration team is responsible for maintaining and improving these products, handling and supporting existing and new integrations.

Responsibilities:
- Build new features and products for our affiliates
- Maintain and enhance existing APIs
- Collaborate with cross-functional teams to ensure seamless integration
- Support existing affiliate integrations

Requirements:
- Strong knowledge of Java, OOP patterns and API design
- Demonstrated passion for writing clean code and commitment to quality and unit testing
- Experience with Spring, JUnit, SQL, HTTP and JSON
- Fluent English communication skills

Benefits and Perks:
- Flexible working hours
- Flexible sick leave
- Fund for career growth and development
- Day off on your birthday
- Additionally paid parental leave
- Generous healthcare insurance
- Free lunch twice a week
- Free Yoga classes twice a week
- Headspace subscription - to relax after work
- No meetings Fridays
- The greatest team events and excursions
- Drinks, coffee, snacks, games etc

Compensation:
Engineer's salary consists of three parts:
- Base part: when joining us early in your career your salary may start from 1679 EUR Gross. Being more experienced, your base salary may be up to 3992 EUR Gross for this position.
- Significant yearly bonus approx 10 percent annual salary
- Booking Holdings RSU (Restricted Stock Units) package, worth 20,000 USD (before taxes) with possibility to get it every year.

KAYAK is committed to diversity and inclusion, welcoming candidates from all backgrounds and experiences. We provide reasonable accommodations for individuals with disabilities throughout the application and employment process.

KAYAK is hiring a Java Software Engineer to join their Affiliates Integrations team, working on products for affiliates including deep links, search widgets, and APIs.

Java Software Engineer

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.

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.

We are looking for Java developers to help improve and maintain KAYAK's big data framework! We maintain high quality data for our Hotel, Flights, Cars, and Vacations verticals as well as deliver content to our SEO and SEM teams. We have millions of hotel property records and images from over a hundred different partners that power our world leading hotel search. You will be an essential part of a high powered team that keeps all of this running smoothly.

Are you passionate about travel and building outstanding user experiences? Then join us at KAYAK and help shape the future of travel! Please note, this role is required to work from our Concord, MA office at least 3 days per week.

In this role, you will:
- Integrating with partner web services and data feeds to acquire content
- Directly communicating with travel partners on technical issues related to their static data APIs, etc.
- Backend Development of KAYAK Hotel & Geographic data content with focus on efficiency, scalability, and automation in regards to day-to-day efforts
- Identifying and resolving complex software problems related to the KAYAK data content
- Utilize and develop against several different types of data storage systems that support the KAYAK content, including but not limited to MySQL, Redis, proprietary KAYAK storage systems.

Please apply if you have:
- Bachelors degree or higher in Computer Science or related field and/or 3+ years professional experience
- Passion for clean code, love for quality and unit testing
- Strong understanding of Object Oriented Programming
- Experience in the following: Java (JDK 8), Spring, SQL, HTTP, XML, JSON, MySQL, Git, Tomcat, JUnit, Mockito
- Working in a semi-micro service environment

Benefits and Perks:
- 4 weeks paid vacation
- Ability to work from almost anywhere
- Day off on your birthday
- Generous retirement plans
- Awesome 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 team events/excursions
- Universal Paid Parental leave

Join KAYAK and be part of a diverse and inclusive workplace that values creativity, innovation, and collaboration.

KAYAK is seeking a Java Engineer to improve and maintain their big data framework, working with hotel, flight, car, and vacation data.

KAYAK Engineering Jobs

World's leading travel search engine, part of Booking Holdings, operating global metasearch brands including momondo, Cheapflights and HotelsCombined.