Engineering firm Simpson Gumpertz & Heger (SGH; Waltham, Mass.) has hired Derrick Watkins as a principal.

Watkins joins SGH’s engineering mechanics and infrastructure division and will be located in San Diego.

He brings 27 years of industry experience, specializing in seismic analysis for nonstructural components, such as heating, cooling, and piping systems; high-end structural analysis and finite-element modeling; and impact modeling analysis to assess extreme loading conditions.