Fiction Writer.
A fiction writer's job is to craft the games' overall narrative. This entails writing the dialogue, directing the voice actors in their readings and to script the cut-scenes and intros. They must be able to differentiate between game writing and novel writing. The requirements of game write must be that of a person who is an avid gamer with a great understanding of video games in general, and must have experience with creative writing, screenplays and dialogue. Must also work along side the develpment team.
http://www.gamasutra.com/php-bin/news_index.php?story=17902#.UKY3yYfG98E
http://jobs.gamasutra.com/jobs/75666-20717/Game-Writer-TimeGate-Studios-Sugar-Land-TX-USA
http://www.mymajors.com/careers-and-jobs/Video-Game-Script-Writer
Level Designer
The job of a level designer requires creating the environment of the level, adding objects and entities. A designer has to deal with balancing, pacing and scenario creating while working alongside the development team every step of the way. Requirements must include; experience with game engines, an understanding in architecture and lighting, an ability to use basic programming and an ability to work in a team with good communication skills.
http://jobs.gamasutra.com/jobs/17672-20286/Lead-Level-Designer-Capcom-Game-Studio-Vancouver-Inc-Burnaby-BC-CAN
http://jobs.gamasutra.com/jobs/362-31387/Level-Designer-Irrational-Games-Irrational-Games-Quincy-MA-USA
http://www.videogameinsiderjobs.com/video-game-designer-job-description/