About Grayson Sky. . Grayson Sky is a boutique creative agency based out of Old City Philadelphia. Our team of passionate specialists develop innovative strategies and campaigns that elevate our clients’ brands and achieve their goals. Job Description. Grayson Sky is seeking a sharp and versatile Junior Copywriter to join our branding team. As Junior Copywriter, you will write, research, and help lead brainstorming sessions for a variety of clien...