{"id":1180984,"url":"https://alion.io/job/kayak-senior-java-software-engineer-ads","title":"Senior JAVA Software Engineer, Ads","company":{"id":3573,"name":"KAYAK","domain":"kayak.com","url":"https://alion.io/company/kayak","size_band":null,"is_staffing_agency":false,"is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":83,"open_postings":3,"ghost_share":0,"stale_share":0.667,"repost_share":0,"time_to_fill_p50_days":41,"computed_at":"2026-09-24T05:45:00Z"}},"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":90900},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Agile","optional":false},{"name":"Java","optional":false}],"status":"live","first_seen_at":"2026-09-24T13:54:46Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-09-24T20:59:33Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"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.\nIn this role you will:\nLead the design and delivery of complex backend features, from initial scoping through deployment and ongoing production support\n\nContribute to technical design reviews and architecture discussions, collaborating with engineers and architects across teams\n\nWrite well-tested, readable, and maintainable code consistent with team quality standards; participate actively in code reviews and provide constructive feedback\n\nMentor and support the growth of less-experienced engineers through technical guidance, knowledge sharing, and pairing\n\nWork closely with product managers and commercial partners to clarify requirements, surface trade-offs, and deliver reliable outcomes\n\nParticipate in on-call rotations: monitor system health, investigate production issues, and write clear bug tickets and documentation\n\nProactively identify opportunities to improve system performance, reduce complexity, and address technical debt in aging codebases\n\nContribute to sprint ceremonies - planning, refinement, retrospectives, and demos - and help improve team delivery processes over time\n\nUse AI-assisted development tools responsibly to improve productivity, code quality, and delivery efficiency\n\nCollaborate across engineering, data science, and business intelligence teams to deliver integrated solutions\n\nPlease apply if you have:\nDemonstrated experience designing, building, and operating backend systems in production environments\n\nStrong proficiency in Java or a comparable backend language, with comfort working across distributed systems and service integrations\n\nExperience with system design, performance optimization, and debugging in complex, multi-service environments\n\nA collaborative working style: you communicate clearly, follow through on commitments, surface risks early, and ask good questions\n\nProfessional proficiency in written and spoken English\n\nCuriosity and a willingness to challenge existing approaches with concrete, well-reasoned alternatives\n\nYou may also bring (not required - equivalent experience, training, or transferable skills considered):\nFamiliarity with ad tech systems, bidding logic, or monetization infrastructure\n\nExperience with server-to-server data integrations or event-driven architectures\n\nExperience working in an agile team environment with sprint-based delivery\n\nComfort with observability tooling, metrics, and production debugging workflows\n\nA specific degree is not required. We welcome candidates from non-traditional educational backgrounds who demonstrate strong engineering fundamentals and a track record of delivering quality software.\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 20000 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.\nIf you need accommodations during the application or interview process, or on the job, we’re here to support you. Please reach out to your recruiter to request any accommodations.","description_format":"text","description_chars":4822,"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 & Tourism"],"lifecycle":[{"event":"open","at":"2026-09-24T14:04:48Z"}],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":41,"reasons":["conf:2","win:early"],"computed_at":"2026-09-24T23:02:02Z"},"pay":{"stated_usd_annual":90900,"is_top_pay":false},"html_url":"https://alion.io/job/kayak-senior-java-software-engineer-ads","json_url":"https://alion.io/job/kayak-senior-java-software-engineer-ads.json","meta":{"generated_at":"2026-09-24T23:02:02Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":1244,"day_limit":5000,"remaining_today":3756,"minute_limit":60,"resets_at":"2026-09-25T00:00:00Z"}}}