Principal Engineer - Service Delivery

This role is part of a larger transition and is planned as part of a separate team being created in Kraków. 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 weekFlexible 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 yearPaid 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.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 cardTax deduction: take the opportunity to claim deductible costs, reducing your income taxEmployee Capital Plans: profit from long-term saving scheme co-financed by Sabre and the State TreasuryBaby 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 VIP medical coverage: take care of yourself and your family with the extensive medical package with a broad range of additional servicesForeign travel insurance: feel safe going abroad with free Allianz insurance offered as part of our Lux Med packageEmployee Assistance Program: find help in free, confidential program with a certified counselorMindfulness & meditation apps: take care of your mental and physical healthLife 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 sessionsCertification and tuition reimbursementOur 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) 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. We have parents’ rooms as wellNo dress codeInnovation Lab: access Augmented Reality & Virtual Reality equipment, Robot construction kit, 3D printers and many moreAttractive Referral Bonus: earn $2500 USD for every hired referral