A LegalKey Developer's primary role is designing, developing, and maintaining software solutions for the LegalKey Records Management System, a platform used by law firms for managing their records and documents. They work on the system's backend and frontend, implementing new features, fixing bugs, and improving system performance. They also collaborate with other team members to understand user requirements and provide technical solutions. Additionally, they ensure data security and compliance with legal regulations. Their responsibility also includes regular system testing and updating documentation. They must possess strong programming skills, knowledge of databases, and understanding of the legal industry's needs.