Costume Personnel. Eglevsky Ballet – Bethpage, NY 11714. Eglevsky Ballet seeks Costume Personnel for various productions throughout the year. Required Skills. Must have excellent sewing skills, both with machine (regular and serger) and by hand. Ability to make alterations and adapt costumes for various body types. Experience working with dance costumes is a plus. Must have basic tailoring skills for women/men. Schedule. Weekend Availability. See...