Principal Engineer in Kraków

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.

Role Summary

As a Lead Engineer, you will own complex Data & Analytics solutions end-to-end—from shaping the initial strategy with enterprise customers to hands-on execution. In this role, you will act as a trusted advisor, translating business hurdles into scalable technical solutions. You will balance technical leadership and mentorship with hands-on development, writing production code and driving engineering excellence. This position offers high autonomy and is designed for a leader ready to track directly into a Principal Engineer role.

Key Responsibilities

• Customer & Solution Ownership: Partner directly with enterprise clients to discover business needs, design scalable Data & Analytics solutions, and build long-term technical trust.
• Hands-on Leadership: Own technical design and architectural decisions. Lead the development of critical system components and write production-quality code.
• Engineering Excellence: Set high standards for code quality, testing, and maintainability. Mentor delivery engineers and review their work to ensure top-tier performance.
• Delivery & Integration: Oversee end-to-end implementation, data migration, and system enhancements, ensuring everything aligns with platform capabilities and timelines.
• Cross-Functional Collaboration: Work closely with Product, Engineering, Architecture, and SRE teams to remove blockers and champion engineering best practices.

Required Experience & Skills

• Core Development: Strong hands-on Java backend experience, paired with good knowledge of Python for data and automation.
• Architecture: Deep understanding of distributed systems, microservices, and cloud-native technologies (Kubernetes, Docker, CI/CD).
• Data & Messaging: Robust experience with data platforms, streaming/event-driven systems (e.g., Kafka), and solid SQL skills (Relational and NoSQL).
• Integrations: Proven track record of building and consuming RESTful APIs for mission-critical, high-availability enterprise systems.

Lead-to-Principal Expectations

• Independently manages complex systems and critical components under minimal oversight.
• Comfortable navigating high-pressure, customer-critical environments.
• Leads through technical authority, execution excellence, and active mentorship.
• Demonstrates the strategic vision and technical depth required to quickly evolve into a Principal Engineer.

Why This Role Matters

You will ensure our most complex Data & Analytics solutions run flawlessly in the real world—directly protecting customer trust, driving platform adoption, and securing revenue realization.

Work arrangements

• Hybrid working mode; 3 chosen days from the office in a week
• Flexible working hours: Maintain your work-life balance by adjusting your working hours to your needs

Paid time off

• Year-End-Break: enjoy additional fully paid days off during the last week of the year
• Paid parental leave: Take up to 12 weeks off with pay after birth or adoption of a child.
• Paid volunteer time: take up to 4 days annually to give your time to a charitable organization of your choice

Your money

• My Benefit platform/Multisport card: enjoy the benefit cafeteria system and use popular sport card
• Tax deduction: take the opportunity to claim deductible costs, reducing your income tax
• Employee Capital Plans: profit from long-term saving scheme co-financed by Sabre and the State Treasury
• Baby Bonus: benefit from one-time allowance on childbirth or adoption
• Say Thanks program: collect points on recognition program and transfer them to wide variety of gifts and services

Health and wellness

• Luxmed medical coverage: take care of yourself and your family with the extensive medical package with a broad range of additional services
• Foreign travel insurance: feel safe going abroad with free Allianz insurance offered as part of our Lux Med package
• Employee Assistance Program: find help in free, confidential program with a certified counselor
• Mindfulness & meditation apps: take care of your mental and physical health
• Life insurance: sign up for free, high coverage life insurance program

Career development

• Professional development: access to e-learning platforms as well as join Sabre live learning sessions
• Certification and tuition reimbursement
• Our Communities: join one of our team member groups focused on sharing knowledge and best practices

And more

• Car and bike parking
• Fun & 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.
• No dress code
• Innovation Lab: access Augmented Reality & Virtual Reality equipment, Robot construction kit, 3D printers and many more
• Attractive Referral Bonus: earn $2500 USD for every hired referral

We 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. Please note that only candidates who meet the minimum requirements will proceed in the selection process. Sabre 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.