Designs medium- to high-complexity audiovisual systems from conception through installation, including signal flows, rack layouts, equipment lists, proposals, labor estimates, and scopes of work. Provides technical support to project teams, installers, programmers, sales staff, and customers. Consults with clients, attends bid meetings, supports onsite troubleshooting, and may train junior engineers. The role is mostly remote or office-based with occasional client-site visits and infrequent extended travel for training.