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Senior Software Engineer, Meta AI

KAYAK

Kaunas · Full-time · Hybrid · Posted Sep 28, 2026

At a glance

Employment
Full-time
Workplace
Hybrid
Location
Kaunas

About the role

  • KAYAK is seeking a Senior Software Engineer to join the Meta AI team in Kaunas.
  • The role focuses on implementing new features and maintaining AI-driven travel search and trip-planning experiences.
  • Engineers will work on high-impact projects like ASK AI and smart filters to improve the travel search engine.

Responsibilities

  • Design, implement and maintain reliable production software for travel-search and trip-planning experiences.
  • Build and evolve APIs and services supporting AI-assisted search and conversational travel planning.
  • Investigate technical problems, assess trade-offs and choose practical solutions.
  • Write automated tests and contribute to quality across unit, integration and end-to-end testing.
  • Participate in code reviews and technical discussions.
  • Collaborate with engineers, product managers and designers to deliver user experiences.
  • Contribute to features such as ASK AI, smart filters and AI-generated hotel review summaries.
  • Monitor and improve production behavior through debugging, observability and root-cause analysis.
  • Learn unfamiliar systems and share knowledge through documentation and pairing.
  • Contribute to the evolution of development tools and engineering processes.

Requirements

  • Experience building and maintaining production software.
  • Proficiency in Java or another relevant programming language.
  • Familiarity with APIs, data structures and software-design principles.
  • Experience testing software and investigating defects or production issues.
  • Ability to explain technical decisions clearly in writing and conversation.
  • Ability to take ownership of assigned work.
  • Experience contributing to projects from design through implementation, release and maintenance.
  • Good communication skills in English.

Benefits

  • Base pay from 3330 EUR up to 6660 EUR gross monthly.
  • Yearly bonuses, approx 10 percent of annual salary.
  • Booking Holdings RSU package worth 20,000 USD gross.
  • Access to thousands of on-demand e-learnings.
  • Health Insurance.
  • Flexible sick time off and additional financial support for sick leave.
  • Additional day off on your birthday.
  • Company-wide vacation week once a year.
  • Free lunch twice a week and daily snacks.

Workplace

  • Requires commuting to the Kaunas office 3 times a week.

Skills

  • Java
  • Spring
  • APIs
  • AI
  • Machine Learning
  • Relational Databases
  • Cloud Services
  • CI/CD
  • Automated Testing

KAYAK

Senior Software Engineer, Meta AI

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