A Graph Databases developer designs, builds, and maintains graph databases, which are databases designed to treat the relationships between data as equally important to the data itself. They deal with data points (nodes) and their interconnections (edges). Developers use graph-oriented queries to extract complex hierarchical structures, social networks, or interconnected data from these databases. They also ensure the database's performance, reliability, and security. They often work with technologies like , JanusGraph, or Amazon Neptune, and languages like Cypher or Gremlin. They also work closely with data analysts and other stakeholders to meet data-related needs.