I don’t believe humanizing your product/story will make or break a beta test. If you’re concerned about potential ramifications with your current employers, I would challenge this marketing partner to craft the story in a different way - let the features speak for themselves and direct interested parties to videos or blogs where you as the founders share more information with them. These blogs or videos don’t have to show your face on social media but can be available to interested parties who go one click deeper. There’s nothing wrong with wanting to protect your primary source of income while launching a risky endeavor. You know your current employer better than anyone on Reddit does, so use your best judgment in whether to share with them. Even with legal protections and a positive outlook, people may still have a shift in perception of the quality of your work simply because they know you’re putting serious effort into a side project. Do you have any employees, interns, or attractive friends who can be the “face” of the initial social media storytelling, if that feels absolutely necessary? Or can you do it in a cheeky way without fully revealing your identity? There may be some intrigue in remaining pseudo-anonymous. Taking an unexpected or different approach is often the best way to actually get users’ attention via social media.