C++ Based MMORPG Development

I'm seeking a highly skilled game developer proficient in C++ to modify an old multiplayer online role-playing game (MMORPG).

Key Requirements:
- Expertise in C++ programming language.
- Experience in developing multiplayer online games.
- Profound understanding of MMORPG genre.
- Good communication skills for regular project updates and discussions.

Please include relevant portfolio samples in your proposal.