Java Backend Developer (Digital Hangar) (all genders)

Shape the future of aviation tech at Digital Hangar! Join us to build impactful products for Lufthansa Group, harnessing cloud, DevOps, and AI-driven innovation - including AI agents and intelligent automation.

Tasks

In this role, you will:

• Design, develop and maintain scalable Java-based backend services, microservices and REST APIs
• Build reliable synchronous and asynchronous integrations in distributed systems
• Take ownership of technical solutions, from design and implementation to deployment and monitoring
• Analyze complex problems, evaluate technical trade-offs and propose improvements to existing solutions
• Apply AI-assisted development tools and explore new approaches to software engineering
• Collaborate proactively with engineers and other stakeholders in international, cross-functional teams
  
  

What do we welcome?

• Azure and cloud-native services
• Observability / OpenTelemetry
• AI-powered applications, LLMs, RAG, MCP or AI agents
• Experience with Agile and cross-functional product teams
  
  

Requirements

Who are you?

• 4+ years of professional Java backend development experience
• Strong software engineering fundamentals and understanding of backend architecture
• Practical experience designing backend solutions and making independent technical decisions
• Solid understanding of microservices, distributed systems, REST APIs, sync/async communication
• Experience with event-driven architecture (e.g. Kafka), containers, Kubernetes, CI/CD
• Knowledge of clean code and engineering best practices
• Hands-on with AI-assisted dev tools (e.g. Copilot, Cursor, Claude Code); critical code review skills
• Strong analytical thinking, ownership, and proactive communication
• English B2/C1
• Hybrid work: 2 days/week in our Gdańsk office
  
  

What do we offer?

• International environment and career development
• Lufthansa Group benefits
• Competitive salary (Senior: 12–22k PLN; Standard: 9–16k PLN gross, CoE)
• Co-financed Multisport card, private medical care, life insurance
• Training, clear growth paths, and real impact in small teams
• Modern office in Oliwa, Gdańsk