Provide hands-on technical leadership primarily during core business hours to align with customer, engineering, spares, quality, and management decision cycles; support business-critical off-shift escalation, planned execution, or recovery needs in accordance with site coverage plans, working-hour requirements, and company policy. Demonstrated ability to create structured problem-solving models, test plans, technical recovery strategies, risk assessments, customer-ready reports, and defensible troubleshooting models using schematics, logs, tool data, procedures, parts history, process symptoms, and failure signatures.