Marketech International Corporation USA is seeking an experienced, safety-focused Chemical Systems Lead Technician to support and coordinate the installation, operation, maintenance, troubleshooting, startup, and commissioning of chemical distribution and process-support systems for the TSMC project in Phoenix, Arizona. The Lead Technician will help organize field activities, verify that assigned work is completed safely and accurately, monitor system conditions, assist with complex troubleshooting, and communicate project status and technical concerns to supervisors, engineers, contractors, vendors, and customer representatives.