Sustaining Engineers are primarily responsible for identifying, analyzing, and resolving issues in existing products, processes, or systems to ensure continued performance and reliability. Their day-to-day tasks often include investigating customer complaints, implementing engineering changes, coordinating with manufacturing and quality teams, and supporting root cause analysis of field failures. Sustaining Engineers also work closely with design, production, and customer support teams, ensuring that corrective actions are effectively communicated and implemented. This role provides exposure to a variety of technical challenges and cross-functional collaboration, making each day dynamic and rewarding.