Unless you tell your employer or unless your employer does a background check on you after your bankruptcy is in public court records, they may not know. Prospective employers may discover the bankruptcy if they conduct background checks on you.
With these possibilities in mind, you can make a plan of action with the help of your bankruptcy lawyer. For example, prepare a short statement about a medical crisis or job loss that you experienced and how you overcame it and moved forward in life.
Be ready to give an explanatory statement to any employer or potential employer who asks about your bankruptcy history after discovering it through a background check.