Java/Kotlin Engineer

Join us in making a difference

Become part of this mission! We have around 10 JVM squads (Java and/or Kotlin) that form the backbone of the search engine that powers trivago. There are dedicated squads for each aspect of delivering results that match a user’s search. Some squads build and optimise the processes that match the most relevant results from a catalog of 16 million items in a few milliseconds. Other squads are responsible for the algorithms that rank results so that users find their ideal hotel as quickly and as easily as possible. We have squads that process billions of price changes per day and own petabytes of data. Still others are working to refine how we interpret user searches by maintaining our traditional engine and, in parallel, working to build on leveraging AI. We are not solving easy problems – that’s already been done.

How you’ll make an impact:

• Think big to design scalable and reliable software that solves the problems encountered in the ever-increasing data processing scenarios we have.
• Build and optimise the solutions that trivago needs to stay far ahead of our competition by considering existing architecture and new industry developments.
• Dive deep into architectural decisions and keep up-to-date with emerging technologies to maintain and enhance the technical roadmap both to your team and the broader company.
• Collaborate and work closely with other backend, frontend, QA, design, and concept teams to help achieve the company\’s and the team’s objectives.
• Ownership of the development cycle with an entrepreneurial spirit, from ideation, implementation and testing, to observation and maintenance.
• Constantly learn by gaining knowledge within your team and across the company, share new insights and make your team and others stronger.

What you\’ll need to thrive:

• 3+ years of experience in backend development with Java or Kotlin.
• Familiarity with Cloud environments and infrastructure (GCP, AWS, Azure etc.).
• A good understanding of architecture and design patterns especially around large-scale and concurrent systems.
• You love working with people from all sorts of backgrounds – data scientists, product managers, front end and CEOs.
• You enjoy proposing your own solutions to improve the experience of millions of users.
• Fluency in English (our company language).

Stand out with:

• Exposure to data-heavy, low-latency services.
• An academic background in computer science, data science, mathematics or related areas.
• A ownership mindset: “I build it, I run it.”

Worried about missing a few requirements? Still apply, and express your motivation as you may just be the right candidate for this or other roles!

What you can look forward to

This is why at trivago, we prioritize your development, offer personalized coaching through Likeminded, and provide workshops, educational meetups, conferences, free online learning courses, and access to a fully-equipped campus library.

Moving to join us?

No problem. You can count on the visa support from our talent support team, a relocation package, interest-free newcomer loan, free language classes, regular team and company-wide events to build experiences together.

Life happens

We offer self-determined vacation (with a minimum of 25 vacation days), flexible working hours, 2 WFH days weekly, the chance to work remotely for 20 days abroad, free access to the Heynanny platform for personalized nanny assistance, and an on-campus kids room.

Enjoy your office days

Use your daily canteen budget to share lunch with colleagues in our canteen, help yourself to complimentary snacks and drinks in our kitchens, stay healthy with our on-site gym and sports classes, and enjoy the comfort of ergonomic desks and focused work areas.

Thank you for considering a career at trivago! Our commitment to fostering an inclusive and enriching environment for all talents is at the heart of what we do. We understand that embarking on a new job opportunity is a blend of excitement and curiosity. Should any questions arise before you apply, feel free to reach out to us at . Join us in our mission to make a positive impact on global travel, we look forward to your application!

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