Java Backend Developer Digital Hangar

At Digital Hangar, we build large-scale digital products that serve customers and employees across Lufthansa Group airlines worldwide. By combining cloud-native technologies, DevOps practices, and AI-assisted development, our engineering teams deliver innovative solutions at scale. We actively explore emerging technologies such as AI agents, Agentic Engineering, and intelligent automation, integrating them into our products and development processes where they add real business value. Who are you? 4+ years of professional Java development experience. Hands-on experience with microservices and distributed systems. Experience with REST APIs and event-driven architecture (e.g. Kafka). Practical experience with containers, Kubernetes and CI/CD. Understanding software architecture, clean code and engineering best practices. Experience using AI-assisted development tools such as GitHub Copilot, Cursor, Claude Code or similar. Strong problem-solving and collaboration skills. Professional working proficiency in English (B2/C1). Availability to work in a hybrid model – 2 days per week in our Gdańsk office What do we welcome? Azure and cloud-native services. Observability / OpenTelemetry. AI-powered applications, LLMs, RAG, MCP or AI agents. Agile and cross-functional product teams. Why do we need you? In this role, you will be responsible for: Design, build and operate Java-based backend services used across Lufthansa Group. Develop cloud-native microservices, REST APIs and event-driven integrations. Take ownership of the full software lifecycle – from solution design and implementation to deployment, monitoring and continuous improvement. Work with Kubernetes, CI/CD, distributed messaging and modern DevOps practices. Use AI-assisted engineering tools and help us explore new approaches to software development. Collaborate with engineers and other roles in cross-functional product teams What do we offer? Work on a cutting-edge integration platform in a cloud-native environment. An international working environment with a culture that fosters development. Individual career path and opportunities for professional growth. Employment contract, salary in the range of: - 8 000 - 16 000 zł gross for regular level - 10 000 - 21 000 zł gross for senior level​ Lufthansa Group membership benefits. Flexible working time and place adjusted to employee’s needs. Possibility of starting your workday between 07:00 and 11:00. Support for your passion for sports within the local activity group and co-financing Multisport cards. Private medical care for employees and their family members. Life insurance. Parking space for employees. Extra social benefits. Holiday funds. Sharing the costs of holidays for kids. Sharing the commuting costs. Modern office in Oliwa – great location and comfortable workspace.