Detailed Work Activity Direct design or development activities. Provide technical guidance to other personnel. "Test performance of electrical, electronic, mechanical, or integrated systems or equipment." Conduct quantitative failure analyses of operational data. Calibrate scientific or technical equipment. Design electromechanical equipment or systems. Evaluate characteristics of equipment or systems. Prepare operational reports. Research advanced engineering designs or applications. Determine operational criteria or specifications. Design energy-efficient vehicles or vehicle components. Develop technical methods or processes. Devise research or testing protocols. Implement design or process improvements. Research design or application of green technologies. Determine design criteria or specifications. Estimate operational costs. Evaluate technical data to determine effect on designs or plans. Maintain operational records or records systems. Prepare technical reports for internal use. Create models of engineering designs or methods. "Coordinate activities with suppliers, contractors, clients, or other departments." Design control systems for mechanical or other equipment. Update technical knowledge.