John Casall has accumulated significant experience in engineering roles, primarily focusing on manufacturing test and design verification. Initially, John served as a Test Engineer at Texas Instruments, before progressing to roles including Electrical Design Engineer. John's expertise was further developed at Samsung Electronics America as a Senior Design Verification Engineer, followed by a position as a Senior Validation Engineer at TT Electronics plc. John also held positions as a Manufacturing Test Engineer at both TT Electronics plc and Honeywell, showcasing a strong foundation in test and validation processes within the electronics industry.