Maintain SMT equipment: Perform preventive and corrective maintenance on solder paste printers, solder paste inspection (SPI) systems, pick-and-place machines, reflow ovens, automated optical inspection (AOI) systems, conveyors, and board handling equipment. Support SMT process performance: Monitor printing, placement, and reflow performance to identify process drift and recurring defects, including insufficient solder, bridging, misalignment, tombstoning, and missing components.