"J. M. Hughes is an embedded systems engineer with over 35 years of experience in electronics, embedded systems and software, aerospace systems, and scientific applications programming. He was responsible for the surface imaging software on the Phoenix Mars Lander, and has worked on digital engine control systems for commercial and military aircraft, automated test systems, radio telescope data acquisition, and real-time adaptive optics controls for astronomy. John has been using Python for many years in a variety of applications, including the software for a multi-wavelength laser interferometer system for verifying the alignment of telescope mirror segments on the James Webb Space Telescope. He is currently designing control systems in C++ and Python for protein peptide synthesizers used in biomedical research. He has taught classes in requirements capture, testing methodologies, embedded systems design, and high-performance computing systems." (Source: https://www.oreilly.com/people/john-hughes/ )