Java Backend Developer

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.