Kayak

Actively Hiring

Senior Software Engineer

Berlin, Germany

Full time

Role Overview

We are looking for a strong Java backend developer to implement new features and maintain KAYAK’s world-leading search and booking technology.

About Kayak

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

Key Responsibilities

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Built for the developer community.

Optimize search and booking logic to handle the demands of greatest global corporate clients

Build and maintain high-performance integrations with third-party APIs

Take full ownership of your designs: from initial concept to deployment while maintaining high standards for code quality and performance

Participate in code reviews and architectural steering to ensure the K4B project remains modular and reusable

Requirements & Eligibility

Bachelor’s degree or higher in Computer Science or related field
6+ years of experience in JAVA
Hands-on experience with the Spring ecosystem (Spring/Spring Boot) and working knowledge of relational (SQL) and NoSQL databases (e.g., PostgreSQL, MySQL, Redis)
Strong English communication skills
Ability to design and implement engineering initiatives with minimal guidance

Required Skills & Tech

JavaSpringSpring BootSQLNoSQLPostgreSQLMySQLRedisAPIs

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Role Highlights

Posted Date

12 Oct 2026

Experience

6+ years

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Senior Software Engineer at Kayak | HYRX