Improving stager payloads especially on non-Windows platforms

Hi, I’m a computer science university student from Japan. I’m interested in binary exploitation and reverse engineering. I like software development, especially security tools. Metasploit is most famous exploitation tool in world, of course I often use it and, want to contribute it. Therefore, I’m most interested in this GSoC project. I have good experience with C and Ruby programming and debugging, exploiting. I can solve these tasks.