Okay, let’s tackle this. So Larry Ng has been working at NETSOL Technologies Inc. for 31 years, which is a long time. His role as Sustaining Engineer is not super common, but it’s a good one. The fact that he’s been with the same company for so long suggests stability and dedication. Location is the San Francisco Bay Area, which is known for being expensive. Industry experience and longevity typically translate to higher rates. However, since the role is not super common, I'll use a more general benchmark for sustaining engineers. Let’s check averages. Sustaining engineers with similar experience might average $50–$100 per hour. So I’ll estimate around $75.