A Cadence Allegro developer designs and tests electronic components and systems using Cadence Allegro software. They create complex circuit board layouts, perform PCB design tasks, and ensure the compatibility of systems and circuits. They use their expertise in electrical engineering and Allegro software to optimize designs for manufacturability and cost-effectiveness. They collaborate with other engineers and project managers, providing input on design feasibility. They also troubleshoot and resolve issues with existing designs. Their work is crucial in the development of electronic devices and systems, from consumer electronics to sophisticated industrial equipment.