A Full Stack Developer and a Software Developer. Here’s a brief explanation of both:

1. Full Stack Developer:

   • Responsibilities: A Full Stack Developer is responsible for both front-end and back-end web development. They understand how every part of the web development process takes place and can guide and implement on each level of the process. This includes everything from creating and maintaining the front-end visuals of a website, to understanding and coding the servers and databases in the back-end.
   • Technologies: They are usually skilled in HTML, CSS, JavaScript, and one or more back-end languages like Python, Ruby, PHP, Java, and .NET. They might also be familiar with various frameworks and libraries associated with those languages, and with databases and server configurations.

2. Software Developer:

   • Responsibilities: Software Developers create applications that allow users to perform specific tasks on computers or other devices. They might also develop systems that run devices or control networks. Unlike full stack developers who focus more on web-oriented tasks, software developers might work on broader applications, whether for desktop, mobile, or other platforms.
   • Technologies: Depending on the specific role or project, a software developer might be proficient in languages like Java, C++, C#, Python, Ruby, and others. They will also be familiar with various development tools, platforms, and methodologies.