A developer is someone who can take a mock-up of a website and bring it to life through coding. This professional often has a background in programming and they will be proficient in several different coding languages like HTML, PHP, and Java. Additionally, they usually have a vast knowledge of website platforms, front-end frameworks, plugins, and databases. Excellent technical background Advanced to expert coding skills Strong understanding of the functionality Can build some or all of a site from scratch Some familiarity with design, marketing, and SEO