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Graph Database Engineer Miejsce pracy: Warszawa Technologies we use Expected Neo4j Cypher GraphQL Graph Theory REST API Microsoft Azure Google Cloud Platform Git Java Operating system Windows macOS About the project We’re taking over and continuing the development of a Neo4j-based web platform. The platform processes complex, interconnected datasets used in real analytical workflows, enabling you to work with real-world graph structures at scale. You will have a direct impact on architectural decisions during the transition and scaling phase, not just maintain legacy code. It’s a rare opportunity to shape a production-grade Neo4j environment that is actively used by global teams. The project is in the transition and scaling phase, focused on knowledge transfer and further feature development. It’s a long-term international project (min. 2 years), offering stable collaboration and room for technical growth. The scope of responsibilities and technical ownership will be adjusted depending on the engineer’s experience level and the project phase. Your responsibilities Design and maintain graph data models using Neo4j Develop and optimize Cypher queries and Java integrations Improve database performance, indexing, and scalability Participate in architectural decisions during transition and scaling phase Collaborate with data scientists and backend teams on analytics features Participate in knowledge transfer and onboarding (as the project scales) Ensure documentation, data security and operational stability Our requirements 3 years of experience in software engineering 2 years of hands-on experience with Neo4j and Cypher Strong knowledge of graph theory concepts Java development experience Experience with graph data modeling and performance optimization Familiarity with cloud environments (Azure / AWS / GCP) English B2 Optional Experience with distributed systems or microservices CI/CD and DevOps practices Knowledge graphs or ML integration Academic background or certifications (Neo4j / Cloud) This is how we organize our work This is how we work in house you focus on a single project at a time agile This is how we work on a project Clean Code DDD TDD Continuous Deployment Continuous Integration DevOps test automation Development opportunities we offer conferences abroad external training industry-specific e-learning platforms intracompany training mentoring space for experimenting substantive support from technological leaders technical knowledge exchange within the company Recruitment stages CV review – we’ll analyze your experience and skills Initial phone interview – a short call Online technical interview Final decision – we’ll get back to you with feedback Green Minds Sp. z o.o. Green Minds is a Polish technology partner connecting experienced IT specialists with international projects. We build dedicated tech teams and support companies in software development, data engineering, and digital transformation — combining technical expertise with a human approach. Wszystkie informacje dotyczące przetwarzania danych osobowych w tej rekrutacji znajdziesz w formularzu aplikacyjnym, po kliknięciu przycisku ‘Aplikuj Teraz’ lub ‘Aplikuj’.”