Andy Byron, the chief executive of New York-based tech company Astronomer, has resigned from his role after he was spotted embracing an employee at a Coldplay concert, according to a LinkedIn post from the company on Saturday.

Software developer Astronomer says former Chief Executive Officer Andy Byron resigned amid controversy following his attendance at a recent Coldplay concert.

“Astronomer is committed to the values and culture that have guided us since our founding. Our leaders are expected to set the standard in both conduct and accountability, and recently, that standard...