At the tech company, I was responsible for having quality product. Thus, I would spend much time traveling to China, Europe, South America to manage and ensure our production line and production test line is good so that we could meet our necessary deadlines. I would also design, build and support necessary production line and off-production line machines.
And the non-profit company, it is more like careers & graduate studies consulting for mostly foreign students who are considerably more handicapped in US. My focus area is Electrical and Computer engineering related career and academics, whereas others I am working with are covering other areas, such as business, accounting, etc.
Regarding my extracurricular, they are mostly engineering related. My team has built robots to compete in national and world competition, and won several awards and even recognition letters from US Senate and US Congress. And I have also worked in lab and my research helped me get grant and scholarship from IEEE (most renowned electrical engineering society worldwide, for this award only 8 worldwide and 2 nationwide were awarded). Besides engineering, I have been involved in Investment Club where we share our ideas regarding economics trend, interesting investment, etc.
For my volunteering works, I tutored undergraduate engineering students for a while without charge. And until now, I have helped teaching kids on weekends for about 2~3 years.
Hopefully information above can help you understand my situation a bit more clearly.
Thanks.