Senior Java Developer

Content Services for Lodging (CSL) is a comprehensive technology solution designed to simplify how travel agencies and corporate buyers search, compare, and book hotel accommodations. By solving fragmented hotel distribution, it brings a wide variety of properties into one unified shopping interface. The platform is designed to increase efficiency for travel management companies, enhance the booking experience for travelers, and drive more revenue by offering a broad range of lodging options in one place.

Key Functional Areas

• System Integration: Facilitating robust and efficient communication between internal microservices and proprietary components.
• Booking & Ticketing Lifecycle: Supporting core transactional flows, including ticket reservations, refunds, and exchanges.
• Search & Optimization: Powering backend algorithms designed to find and generate the most optimal flight connections.
• Financial Calculations: Handling complex pricing engines, fare structures, and diverse cost-assessment calculations.

Responsibilities

• Design, code, test, and build high-quality enterprise software according to requirements.
• Leverage AI-assisted development tools to improve coding efficiency, code comprehension, and test generation while maintaining full ownership of decisions.
• Perform meaningful unit testing and maintain code quality, security, and performance standards.
• Design, build, deploy, and operate scalable services using Google Cloud Platform (GCP).
• Collaborate with platform, security, and SRE teams to align solutions with cloud, security, and reliability standards.
• Support the Technical Product Manager in the preparation and refinement of requirements.
• Provide input to story prioritization, technical tradeoffs, and participate in estimation and sizing activities.
• Attend and actively participate in Scrum ceremonies, release planning, and technical reviews.
• Update status in Rally daily and continuously work with teams to improve engineering and DevOps practices.

Requirements

• Minimum 6+ years of professional software development experience.
• Strong expertise in Java / Enterprise Java and Spring Boot, including enterprise-grade API design and maintenance.
• Solid knowledge of Web Services: REST, JSON, XML, and SOAP.
• Experience with GCP services, including Compute/GKE, networking, security, storage, messaging, and monitoring/observability tools.
• Familiarity with containerized and cloud-native architectures, including Kubernetes-based deployments.
• Experience with CI/CD pipelines, build tooling, and cloud-integrated DevOps practices.
• Solid Unix/Linux knowledge.
• Ability to troubleshoot issues in test and production environments and improve stability and performance.
• Experience translating business requirements into technical designs and producing technical documentation with AI assistance.
• Familiarity with Agile/Scrum methodologies and shift-left testing approaches.
• Communicative English and Polish, written and spoken, for cross-functional collaboration.
• Legal work permit in Poland.

Benefits

General benefits

• Hybrid work model combining office and remote work.
• Attractively located office with collaboration spaces.
• Onsite parking for employees.
• Referral program with a financial bonus.
• Life insurance.
• Development budget, including language courses, a clear career path, and the opportunity to gain experience in an international environment.
• Access to an internal learning platform with professional-growth training.

Lifestyle benefits

• Access to the MyBenefit platform, including Multisport.
• Team-building activities.
• Charity initiatives.
• A working environment that promotes diversity and inclusion.

Health benefits

• Private medical care – Platinum Package.