Senior JAVA Software Engineer

About the role

Join KAYAK as a Senior Java Software Engineer and help improve and maintain our search and booking systems. You will build and maintain backend features, improve performance and reliability, integrate with internal and third-party APIs, and collaborate with frontend engineers, product, design, and QA. Enjoy flexible work options, team-wide time off, volunteer opportunities, wellness support, resource groups, and career growth opportunities. Key missions: Construire et maintenir des fonctionnalités backend pour l'équipe Stays (recherche, réservation, intégrations).. Améliorer les performances, la fiabilité et l'expérience utilisateur des systèmes existants.. Collaborer avec les ingénieurs frontend, le produit, le design et l'assurance qualité pour livrer des fonctionnalités. Profile: - Experience building high-performance, scalable services - Self-driven and able to move projects forward independently - Familiarity with relational databases (e.g., MySQL) and web data formats/protocols (HTTP, XML, JSON) - Clear communicator who works well on a team - Experience designing APIs and backend services - Strong Java development skills - Practical experience with APIs (design, consumption, or integration) - Experience with Spring, Git, Redis, Kafka, or similar technologies - Experience working on search, booking, or high-throughput systems