Senior Java Developer

Senior Backend Engineer (Java) - Krakow, Hybrid, 2 days in officeYou will:

Design, build, and maintain robust microservices for a next-generation network management suite used in mission-critical environments

• Drive key architectural decisions to ensure the high performance, scalability, and availability of large-scale distributed backend systems
• Develop and deploy complex solutions across on-premise, cloud, and hybrid infrastructures
• Maintain a clean, scalable codebase and actively propose modern orchestration solutions, tools, and technologies
• Leverage generative AI tools (like GitHub Copilot and Google Gemini) to accelerate software development, optimize problem-solving, and enhance code reviews
• Actively participate in lab environments, including system configuration, application deployments, and hands-on system troubleshooting
• Collaborate within an Agile environment, contributing to complex technical documentation and sharing knowledge with the engineering teamYou bring:

Deep proficiency in the modern Java ecosystem (Java 21+) and the Spring Framework

• Proven track record of designing and orchestrating microservices in complex, distributed environments
• Strong expertise in Cloud platforms (Azure preferred) and solid practical knowledge of Kubernetes
• Hands-on experience with messaging and event-streaming systems (Kafka, EventHubs) alongside advanced PostgreSQL database management
• Strong grasp of networking fundamentals (protocols, routing, services) and practical Linux skills for automation
• Experience with CI/CD pipelines, DevOps practices, and effective Git/GitHub workflows
• Highly analytical mindset with exceptional troubleshooting skills for resolving challenging performance bottlenecks
• Fluent English allowing for seamless technical communication and documentation