What exactly does a Sound Assistant do?" Sound assistants in general help the audio recording team to ensure that the entire recording process runs smoothly, and that all the required equipment and audio systems are setup and ready. They usually set up and unload sound systems and PA speakers. They also handle any technical issues that might come up during the recording session.
But in order to work as a Sound Assistant you have to be a part of the sound department, and must have a working android smartphone. Sound department members can create their own Sound Assistant application, which they can upload to the SIA's server so that all the team and sound assistants can use it. The company can then distribute the application through their various channels - social media, Facebook, and Twitter among others. Each time one of their sound department members needs help they just need to log into the SIA's website, download the relevant free software and they'll be able to give help instantly.
If you are an aspiring sound assistant/sound mixer, it's a good chance that you are interested in the production sound mixer job. This kind of job can allow you to experience the sound production side of the entertainment industry while making some good money as well. The good thing about it is that many production sound mixers start as assistants before advancing to the position of being full-time producers. And as long as you are able to hold the C#/VB programmers' skills and the talent to compose killer sounds, there's no reason why you shouldn't be able to advance your career in this field as well.