An entry-level iOS developer works to create, maintain, debug, and program software for various departments at a company. As an entry-level iOS developer, your responsibilities include working with different Apple and Mac devices with iOS, such as computers, tablets, and smartphones. You need to know various programming language types and be able to work with an integrated development environment (IDE). Other duties include working with Xcode, writing code, collaborating with a team of junior and senior programmers on different projects, modifying and writing software for client applications, documenting and testing software, and using source debuggers.