An LDAP/Active Directory developer designs, implements, and maintains systems for managing user data, access control, and network resources using Lightweight Directory Access Protocol (LDAP) or Microsoft's Active Directory (AD). They ensure secure and efficient access to network resources, create and manage user access policies, and troubleshoot any issues. They also design and implement schemas and directory structures, and integrate LDAP/AD services with other applications. They work closely with system administrators, network engineers, and other IT professionals to ensure seamless functionality across the organization. They also need to stay updated with advancements in directory technologies.