Software Systems Engineer - Java (/Regular or )

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.

Location: Kraków (hybrid work - 3 day per week in the office)

We are seeking a Software Systems Engineer to join our global Network Planning team, where innovation knows no borders. Network Planning is a highly sophisticated portfolio of products that helps airlines plan, create, manage and optimize their flight networks. As the industry leader for scheduling and optimization solutions serving 100 airline customers around the world, this team builds complex systems that keep the global travel network connected. With an inclusive culture and flexible work environment, we work together with boldness, curiosity and commitment so we can all win together.

As a Software Systems Engineer, you will drive technical design and execution across a high-scale product suite handling significant domain complexity. You will collaborate across distributed teams, mentor engineers and continuously improve software development processes and system efficiency. This role requires technical depth, constructive problem-solving skills and the ability to guide teams toward reliable, sustainable software architecture.

• Work with globally distributed teams to discuss, understand, design and implement new functionalities across complex systems.
• Apply optimizations and continuous improvements to product features, technical architecture, development processes and tooling.
• Mentor and provide technical guidance for junior team members to foster technical growth and team cohesion.
• Identify and implement practical ways to incorporate AI into core workflows and systems to accelerate delivery and enhance system capabilities.
• Solve complex technical challenges related to scope, scale and algorithmic performance across large-scale software solutions.
• Drive cross-team alignment to ensure software quality, stability and operational excellence.

• 2-6 years of experience in software engineering, with proven expertise leading complex system design and technical initiatives.
• Fluency in Java with solid, hands-on experience across the J2EE platform and Spring framework.
• Familiarity with Google Cloud Platform (GCP) or similar cloud environments.
• Practical hands-on experience using AI, generative AI tools or machine learning capabilities to improve software architecture or developer workflows.
• Demonstrated ability to collaborate constructively across global teams, guide technical decision-making and mentor peers.

Paid time off

Your money

Health and wellness

Career development

And more

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.