Java Senior Software Engineers

Location: Kaunas Office, hybrid; commuting to the Kaunas office is required three times a week

Salary: €3,330–€6,660 gross monthly, plus yearly bonuses of approximately 10% of annual salary and a Booking Holdings RSU package worth $20,000 gross.

Company

hirify.global is a travel search engine within Booking Holdings, operating global metasearch brands and developing travel-search and corporate travel products.

What you will do

• Design, implement, and maintain reliable production software for travel search and trip planning.
• Build and evolve APIs and services for AI-assisted search, conversational travel planning, itineraries, smart filters, and related experiences.
• Investigate technical problems, assess trade-offs, and improve reliability, performance, maintainability, and observability.
• Write automated unit, integration, and end-to-end tests and contribute to code reviews and technical discussions.
• Collaborate with engineers, product managers, and designers to deliver useful and accessible user experiences.
• Share knowledge and contribute to development tools, engineering processes, and delivery practices.

Requirements

• Experience building and maintaining production software.
• Proficiency in Java or another relevant programming language, with familiarity with APIs, data structures, and software design principles.
• Experience testing software and investigating defects or production issues.
• Experience contributing to projects from design through implementation, release, and maintenance.
• Ability to explain technical decisions clearly and take ownership while requesting support when needed.
• Good communication skills in English.

Nice to have

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

Culture & Benefits

• Work from almost anywhere for up to 20 days per year.
• Career-growth funds, access to on-demand e-learning, and internal communities.
• Additional health insurance, flexible sick time, parental-leave support, and a company-wide winter vacation week.
• Free lunches twice a week, office snacks, yoga, therapy sessions, and a HeadSpace subscription.
• Birthday leave, paid volunteering time, no-meeting Fridays, and office and team events.