{"id":1393035,"url":"https://alion.io/job/kayak-senior-software-engineer-meta-ai-3","title":"Senior Software Engineer, Meta AI","company":{"id":3573,"name":"KAYAK","domain":"kayak.com","url":"https://alion.io/company/kayak","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"C","score":69,"open_postings":4,"ghost_share":0.25,"stale_share":0.5,"repost_share":0.25,"time_to_fill_p50_days":38,"computed_at":"2026-10-22T06:10:10Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Kaunas, Lithuania"],"countries":["LT"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":3330,"max":6660,"currency":"EUR","period":"month","gross":true,"usd_annual":89760},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"CI/CD","optional":false},{"name":"Java","optional":false},{"name":"Machine Learning","optional":false}],"status":"live","first_seen_at":"2026-09-28T11:01:31Z","employer_posted_date":"2026-09-28","last_verified_at":"2026-10-23T04:50:13Z","board_verified":true,"closed_at":null,"days_open":24,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":24},"description":"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.\nAs 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.\nWe are looking for a strongJava 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!\nThis role requires commuting to the Kaunas office 3 times a week.\nPlease submit your CV in English\nIn this role you will:\nDesign, implement and maintain reliable production software for KAYAK’s travel-search and trip-planning experiences.\n\nBuild and evolve APIs and services supporting AI-assisted search, conversational travel planning, itineraries and related user experiences.\n\nInvestigate technical problems, assess trade-offs and choose practical solutions that improve reliability, performance and maintainability.\n\nWrite automated tests and contribute to quality across unit, integration and end-to-end testing.\n\nParticipate in code reviews and technical discussions, providing constructive feedback focused on correctness, clarity and maintainability.\n\nWork with engineers, product managers and designers to clarify requirements and deliver useful, accessible user experiences.\n\nContribute to features such as ASK AI, smart filters, AI-generated hotel review summaries, Explore and related search experiences.\n\nHelp make AI-assisted features dependable, transparent and useful to travelers.\n\nLearn unfamiliar systems and share knowledge with teammates through documentation, pairing and technical discussions.\n\nMonitor and improve production behavior through effective debugging, observability and root-cause analysis.\n\nContribute to the evolution of development tools, engineering processes and delivery practices.\n\nPlease apply if you have:\nExperience building and maintaining production software.\n\nProficiency in Java or another relevant programming language.\n\nFamiliarity with APIs, data structures and software-design principles.\n\nExperience testing software and investigating defects or production issues.\n\nThe ability to explain technical decisions clearly in writing and conversation.\n\nThe ability to take ownership of assigned work while asking for input or support when needed.\n\nExperience contributing to projects from design through implementation, release and maintenance.\n\nEquivalent practical experience is welcome in place of a specific degree or educational path.\n\nGood communication skills in English.\n\nThe following will help you stand out:\nExperience with distributed systems, search, personalization or other high-volume consumer products.\n\nExperience with AI, machine learning or large language model applications.\n\nExperience with relational databases or other structured data stores.\n\nExperience working on web products, mobile products or travel-related products.\n\nExperience improving accessibility, reliability or usability.\n\nExperience working with Java and Spring.\n\nExperience with cloud services, CI/CD pipelines and automated testing frameworks.\n\nCompensation:\nSalary consists of three elements:\nBase pay: from 3330 EUR up to 6660 EUR gross monthly.\nIn addition:\nSignificant yearly bonuses, approx 10 percent of annual salary.\n\nBooking Holdings RSU (Restricted Stock Units) package, worth 20,000 USD gross, with possibility to receive yearly refreshes.\n\nBenefits:\nWork from (almost) anywhere for up to 20 days per year\n\nFunds for your career growth\n\nAccess to thousands of on-demand e-learnings\n\nGenerous additional Health Insurance\n\nFlexible sick time off\n\nAdditional financial support for your sick leave\n\nAdditional day off on your birthday\n\nCompany-wide vacation week once a year (winter holidays)\n\nAdditional financial support during parental leave\n\nFree lunch twice a week and daily snacks at the office\n\nFree yoga twice a week\n\nPaid volunteering time\n\nNo meeting Fridays\n\nOffice and team events such as summer camp, KAYAK birthday, winter party and more!\n\nCompany-paid therapy sessions through SpringHealth\n\nCompany-paid subscription to HeadSpace\n\nInternal Communities\n\nInclusion\nAt 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.\nNeed any adjustments for the interview, application or on the job? No problem - just give us a heads-up. We've got you.","description_format":"text","description_chars":5135,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":["Health insurance","Parental leave","Restricted stock units"],"hiring_locations":[{"name":"Lithuania","iso":"LT","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Travel Agencies","Price Comparison","Travel Technology"],"lifecycle":[{"event":"open","at":"2026-09-28T12:32:11Z"}],"visa":[],"liveness":{"score":73,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.808,"p_room":0.9,"age_days":23,"expected_fill_days":38,"reasons":["conf:0","velocity","win:mid"],"computed_at":"2026-10-22T06:10:10Z"},"pay":{"stated_usd_annual":89760,"is_top_pay":false},"html_url":"https://alion.io/job/kayak-senior-software-engineer-meta-ai-3","json_url":"https://alion.io/job/kayak-senior-software-engineer-meta-ai-3.json","meta":{"generated_at":"2026-10-23T05:15:36Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":8650,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-24T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":3573},"rest":"https://alion.io/mcp/rest/get_company?id=3573"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fkayak-senior-software-engineer-meta-ai-3"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fkayak-senior-software-engineer-meta-ai-3"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fkayak-senior-software-engineer-meta-ai-3"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/kayak-senior-software-engineer-meta-ai-3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fkayak-senior-software-engineer-meta-ai-3"}]}