score:7
No, your purposes do not qualify for the Visa Waiver Program (VWP). The ESTA is simply the approval for the VWP. The VWP only allows you to enter for purposes that would otherwise be allowed under a B1/B2 visa (business/tourism), see https://travel.state.gov/content/travel/en/us-visas/tourism-visit/visa-waiver-program.html. Specifically for business, valid examples include:
You may not actually perform work under the VWP, which is what you are looking to do.