An LPC Xpresso developer designs, develops, and tests embedded systems using LPC Xpresso, an integrated development environment (IDE). They utilize its features like code editing, compiling, and debugging to create efficient microcontroller-based applications. Essential tasks include writing C or C++ code, debugging firmware, and integrating hardware components. They also use LPC Xpresso's simulation and analysis tools to optimize system performance. Developers often work with peripherals, such as GPIO, UART, SPI, , and work on real-time operating systems (RTOS). Additionally, they maintain documentation of their work and troubleshoot any issues arising in the system's functionality.