In a software developer weekend job, you work part-time on programming projects during Saturday-Sunday shifts. In this career, your duties vary depending on your client or employer but typically focus on the design of programs, applications, and computer systems. You write code for programming projects and also test your programs or debug the developments of other coding professionals. When working with systems software, your responsibilities may include making necessary changes and performing tests. You may focus on a specific aspect of a software project or application or analyze and correct the programming for a larger network from the work week.