Operating System Optimization

I am looking to have my Linux operating system optimized with software-specific optimizations. I'm also in need of help with applications and programs that I am currently using. I need an experienced freelancer who can help me enhance the performance of my operating system in order to maximize efficiency. I'm looking for someone who is familiar with Linux, is knowledgeable on how to optimize the system and can help me with any of the software I am currently using.