{"id":349450,"url":"https://alion.io/job/sabre-principal-engineer-service-delivery","title":"Principal Engineer - Service Delivery/IX Platform","company":{"id":5747,"name":"Sabre","domain":"sabre.com","url":"https://alion.io/company/sabre","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":84,"open_postings":19,"ghost_share":0,"stale_share":0.632,"repost_share":0,"time_to_fill_p50_days":43,"computed_at":"2026-11-02T06:13:15Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Kraków, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":66000,"max_usd":108000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":59},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"GCP","optional":false},{"name":"Google Cloud Run","optional":false},{"name":"Google GKE","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false},{"name":"RabbitMQ","optional":false},{"name":"Rest API","optional":false},{"name":"SOAP","optional":false},{"name":"SQL","optional":false},{"name":"ElasticSearch","optional":true},{"name":"Google BigQuery","optional":true},{"name":"Helm","optional":true},{"name":"MySQL","optional":true},{"name":"Oracle","optional":true},{"name":"PostgreSQL","optional":true},{"name":"Redis","optional":true},{"name":"Spring Boot","optional":true},{"name":"Spring Cloud","optional":true},{"name":"Swagger","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2026-06-09T00:00:00Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-11-02T06:28:33Z","board_verified":true,"closed_at":null,"days_open":146,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":146},"description":"Powering the agentic revolution in travel. Sabre is an AI-native technology leader, backed by one of the world’s largest travel data clouds. Built on an open, modular, cloud-native architecture, Sabre serves as the backbone for both established leaders and bold, new disruptors, guiding them to the next age of travel retailing through intelligent, connected, and personalized experiences. With AI at its core and operating at unparalleled scale, Sabre transforms insights into innovation, empowering airlines, hoteliers, agencies and other partners to retail, distribute and fulfill travel worldwide.\nWe are seeking an Engineer to join our global IX Platform team, where innovation knows no borders. This role is part of a larger transition and a dedicated team being created in Kraków. This team designs, builds, and evolves modern cloud-native backend services and distributed architectures that power mission-critical travel and airline technology solutions worldwide. By delivering high-availability systems, robust APIs, and scalable data flows, the team enables travel disruptors and established leaders to retail, distribute, and fulfill travel at scale. With an inclusive culture and flexible work environment, we work together with boldness, curiosity, and commitment so we can all win together.\nAs an Engineer on the IX Platform team in Kraków, you will build and support resilient microservices, messaging patterns, and cloud-native backend components. You will collaborate across Product, Architecture, QA, SRE, and Delivery teams to translate platform vision into production-ready software. Takes ownership of services from design through implementation, deployment, and production support. This role demands strong backend engineering fundamentals, a commitment to clean code, and constructive problem-solving to maintain high reliability across enterprise distributed systems.\nWhat You'll Do\nService Lifecycle: Take ownership of services from design through implementation, deployment, and production support.\nBackend Engineering: Design, develop, test, and maintain high-performance backend services using Java and modern JDK capabilities.\nAPI Development: Build, consume, and document secure, well-structured RESTful and SOAP APIs and integration services for high-availability systems.\nCloud Operations: Deploy and operate containerized microservices in cloud environments, focusing on Google Cloud Platform, GKE, Cloud Run, and automated deployment patterns.\nDistributed Systems: Implement asynchronous, event-driven communication patterns using messaging technologies, queues, and event streams.\nData Management: Optimize relational database schemas, SQL queries, transactions, caching mechanisms, and data access layers for consistency and scale.\nQuality & Code Health: Author production-quality code with unit and integration tests, participate in code reviews, and drive continuous engineering improvements.\nCross-Functional Collaboration: Partner with cross-functional teams to refine technical requirements, evaluate design trade-offs, and support operational readiness through logging, monitoring, and incident diagnostics.\nWhat You'll Bring\nRequired Qualifications\nStrong hands-on experience with Java backend development, modern JDK versions, JVM fundamentals, concurrency, and performance tuning.\nProven experience designing, developing, consuming, and maintaining REST and SOAP APIs, including API security, contracts, and versioning.\nPractical experience with cloud-native architectures and containerization tools such as Docker, Kubernetes, or Google Cloud Platform services.\nSolid understanding of distributed systems principles, microservices patterns, service discovery, resiliency, messaging systems (e.g., Pub/Sub, Kafka, RabbitMQ), and key resilience/consistency mechanisms including retries, timeouts, circuit breakers, idempotency, consistency, latency, and failure handling.\nHands-on experience with relational databases, SQL schema design, query optimization, data modeling, and modern CI/CD practices.\nPreferred Qualifications\nExperience with Spring Boot, Spring Cloud, or similar Java backend frameworks.\nHands-on experience with GCP-native services such as GKE, Pub/Sub, BigQuery, Cloud SQL, Memorystore, Cloud Logging, Cloud Monitoring, Cloud Trace, or Cloud Build.\nExperience with Kafka or high-volume event streaming platforms.\nExperience designing systems for high availability, horizontal scaling, disaster recovery, and performance under load.\nExperience with OpenAPI/Swagger, API gateways, OAuth2/OIDC, JWT, mTLS, enterprise identity integrations, or NoSQL/caching technologies like PostgreSQL, Oracle, MySQL, Redis, or Elasticsearch.\nFamiliarity with Infrastructure as Code tools such as Terraform or Helm.\nDomain experience in travel, airline, retailing, distribution, booking, or fulfillment enterprise systems.\nWork arrangements\nHybrid working mode; 3 chosen days from the office in a week\nFlexible working hours: Maintain your work-life balance by adjusting your working hours to your needs\nPaid time off\nYear-End-Break: enjoy additional fully paid days off during the last week of the year\nPaid parental leave: Take up to 12 weeks off with pay after birth or adoption of a child. Sabre Global Paid Parental Leave runs concurrently with local leave policies.\nPaid volunteer time: take up to 4 days annually to give your time to a charitable organization of your choice\nYour money\nMy Benefit platform/Multisport card: enjoy the benefit cafeteria system and use popular sport card\nTax deduction: take the opportunity to claim deductible costs, reducing your income tax\nEmployee Capital Plans: profit from long-term saving scheme co-financed by Sabre and the State Treasury\nBaby Bonus: benefit from one-time allowance on childbirth or adoption \nSay Thanks program: collect points on recognition program and transfer them to wide variety of gifts and services\nHealth and wellness\nLuxmed medical coverage: take care of yourself and your family with the extensive medical package with a broad range of additional services\nForeign travel insurance: feel safe going abroad with free Allianz insurance offered as part of our Lux Med package\nEmployee Assistance Program: find help in free, confidential program with a certified counselor\nMindfulness & meditation apps: take care of your mental and physical health\nLife insurance: sign up for free, high coverage life insurance program\nCareer development\nProfessional development: access to e-learning platforms as well as join Sabre live learning sessions\nCertification and tuition reimbursement\nOur Communities: join one of our team member groups focused on sharing knowledge and best practices (Google Developers Group, Innovation Lab Community, Women in Technology, SOLVE!T and many more)\nAnd more\nCar and bike parking \nFun & Relax zone in modern office: enjoy electronic tables to work, foosball, ping pong, pool table, swings, massage chairs and terraces to admire a panoramic view of Kraków. We have parents’ rooms as well\nNo dress code\nInnovation Lab: access Augmented Reality & Virtual Reality equipment, Robot construction kit, 3D printers and many more\nAttractive Referral Bonus: earn $2500 USD for every hired referral\nWe will give careful consideration to your application and review your details against the position criteria. You will receive separate notification as we progress your application.\nPlease note that only candidates who meet the minimum requirements will proceed in the selection process.\nSabre is an equal employment opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, gender identity, sexual orientation, disability status, protected veteran status or any other characteristic protected by law.\n#LI-Hybrid#LI-KG1","description_format":"text","description_chars":7841,"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":[]},"benefits":["Cafeteria","Flexible schedule","Hybrid work","Life insurance","Parental leave","Professional development"],"hiring_locations":[{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Travel & Tourism","Travel Technology"],"lifecycle":[{"event":"open","at":"2026-09-05T18:49:43Z"}],"visa":[],"liveness":{"score":12,"band":"cold","label":"Long shot","p_open":1,"p_active":0.412,"p_room":0.28,"age_days":146,"expected_fill_days":43,"reasons":["conf:10","stale_co","velocity","win:tail","crowd:"],"computed_at":"2026-11-02T06:13:15Z"},"pay":null,"html_url":"https://alion.io/job/sabre-principal-engineer-service-delivery","json_url":"https://alion.io/job/sabre-principal-engineer-service-delivery.json","meta":{"generated_at":"2026-11-02T12:33:32Z","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":17152,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-03T00:00:00Z"}},"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":5747},"rest":"https://alion.io/mcp/rest/get_company?id=5747"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsabre-principal-engineer-service-delivery"},{"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%2Fsabre-principal-engineer-service-delivery"},{"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%2Fsabre-principal-engineer-service-delivery"},{"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/sabre-principal-engineer-service-delivery\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsabre-principal-engineer-service-delivery"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":349450}},{"tool":"search_jobs","arguments":{"company":"sabre.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":349450},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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