Senior Software Engineer, Meta AI

Kayak; Berlin; Hybrid; EUR 90.000 - 130.000; Vollzeit

Benefits dieser Stelle

Work from (almost) anywhere for up to

Focus on mental health and well-being:

Zusammenfassung

KAYAK in Berlin is seeking a Java Senior Software Engineer to design, implement and maintain production software for travel-search and AI-assisted experiences.

You will build APIs, work with AI features, and collaborate with product teams. This role requires commuting to the Berlin office three times a week.

Join a team focused on reliability, scalability and user-friendly experiences across web and mobile products.

Qualifikationen

• Experience with distributed systems, search, personalization or other high-volume consumer products.
• Experience with AI, machine learning or large language model applications.
• Experience with relational databases or other structured data stores.
• Experience working on web products, mobile products or travel-related products.
• Experience improving accessibility, reliability or usability.
• Experience working with Java and Spring.
• Experience with cloud services, CI/CD pipelines and automated testing frameworks.

Aufgaben

• Design, implement and maintain reliable production software for KAYAK's travel-search and trip-planning experiences.
• Build and evolve APIs and services supporting AI-assisted search, conversational travel planning, itineraries and related user experiences.
• Investigate technical problems, assess trade-offs and choose practical solutions that improve reliability, performance and maintainability.
• Write automated tests and contribute to quality across unit, integration and end-to-end testing.
• Participate in code reviews and technical discussions, providing constructive feedback focused on correctness, clarity and maintainability.
• Work with engineers, product managers and designers to clarify requirements and deliver useful, accessible user experiences.
• Contribute to features such as ASK AI, smart filters, AI-generated hotel review summaries, Explore and related search experiences.
• Help make AI-assisted features dependable, transparent and useful to travelers.
• Learn unfamiliar systems and share knowledge with teammates through documentation, pairing and technical discussions.
• Monitor and improve production behavior through effective debugging, observability and root-cause analysis.
• Contribute to the evolution of development tools, engineering processes and delivery practices.

Kenntnisse

Java & Spring

Distributed systems

AI/ML/LLM

Relational databases

Web/mobile/travel products

Accessibility/reliability

Cloud services/CI-CD

Automated testing frameworks

Jobbeschreibung

KAYAK, part of Booking Holdings (NASDAQ: BKNG), is a leading travel search engine. With billions of queries across our platforms, we help people find their perfect flight, stay, rental car and vacation package. We're also transforming business travel with a new corporate travel solution, KAYAK for Business.

As an employee of KAYAK, you will be part of a travel company that operates a portfolio of global metasearch brands including momondo, Cheapflights and HotelsCombined, among others. From start-up to industry leader, innovation is in our DNA and every employee has an opportunity to make their mark. Our focus is on building the best travel search engine to make it easier for everyone to experience the world.

We are looking for a strong Java Senior Software Engineers to implement new features and maintain KAYAK's AI. You will be an essential part of a high powered team that keeps all of this running smoothly - helping millions of people find the best hotels and the best ways to fly from A to B every day!

This role requires commuting to the Berlin office 3 times a week.

In this role you will:

• Design, implement and maintain reliable production software for KAYAK's travel-search and trip-planning experiences.

• Build and evolve APIs and services supporting AI-assisted search, conversational travel planning, itineraries and related user experiences.

• Investigate technical problems, assess trade-offs and choose practical solutions that improve reliability, performance and maintainability.

• Write automated tests and contribute to quality across unit, integration and end-to-end testing.

• Participate in code reviews and technical discussions, providing constructive feedback focused on correctness, clarity and maintainability.

• Work with engineers, product managers and designers to clarify requirements and deliver useful, accessible user experiences.

• Contribute to features such as ASK AI, smart filters, AI-generated hotel review summaries, Explore and related search experiences.

• Help make AI-assisted features dependable, transparent and useful to travelers.

• Learn unfamiliar systems and share knowledge with teammates through documentation, pairing and technical discussions.

• Monitor and improve production behavior through effective debugging, observability and root-cause analysis.

• Contribute to the evolution of development tools, engineering processes and delivery practices.

The following will help you stand out:

• Experience with distributed systems, search, personalization or other high-volume consumer products.

• Experience with AI, machine learning or large language model applications.

• Experience with relational databases or other structured data stores.

• Experience working on web products, mobile products or travel-related products.

• Experience improving accessibility, reliability or usability.

• Experience working with Java and Spring.

• Experience with cloud services, CI/CD pipelines and automated testing frameworks.

Benefits and Perks

• Work from (almost) anywhere for up to 20 days per year

• Focus on mental health and well-being:

  • Company-paid therapy sessions through SpringHealth

  • Company-paid subscription to HeadSpace

• Company-wide week off a year- the whole team fully recharges

• No-meeting Fridays

• Paid parental leave

• Paid volunteer time

• Focus on your career growth:

  • Development Dollars

  • Leadership development

  • Access to thousands of on-demand e-learning courses

• Travel discounts

• Employee Resource Groups

• Six weeks of paid vacation plus a day off for your birthday

• Free lunch two days per week

• Pension plan contributions

• Public transportation subsidies

• Bike leasing program

• Monthly social events, Thursday happy hours and sports teams

• An awesome office in Friedrichshain, Berlin

Inclusion

At KAYAK, we want everyone to have the space to grow, share ideas and do great work. That's why we're focused on hiring the best talent from all walks of life and experiences, supporting them well and making sure no one feels like they have to fit a mold to belong here.

Need any adjustments for the interview, application or on the job? No problem - just give us a heads-up. We've got you.