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July 3, 1982
Jeep Barnett is a programmer working at Valve since July 2005. He was hired with most of the Nuclear Monkey Software team to make Portal. Although he was credited in Half-Life 2 Episodes One and Two, he did not directly work on them.
- "Jeep quit his janitorial job at Fred Meyer to turn his programming hobby into a career. Jeep's love of video games (and fear of returning to a life of toilet scrubbing) drove him to earn a B.S. Degree from the DigiPen Institute of Technology in Redmond, WA. His senior game project, Narbacular Drop, morphed into Portal after Valve hired Jeep and his DigiPen teammates."
- ―Source (June 6, 2015)
- Portals: Implemented player, AI, and other portal interactions. Coded surface fitting system.
- Gameplay: Programmed game entities, player movement, and the portal gun.
- Design: Ensured a smooth and memorable player experience. Crafted levels in Hammer.
- AI: Tuned the turret’s behavior to be challenging and fair. Injected life into its reactions.
- UI: Created the bonus maps interface for challenges and importing user created content.
- Audio: Built soundscapes and managed aural perception. Implemented sound effect usage.
- PR: Granted written, spoken, and video press interviews. Prepared and drove trade shows demos.
 Potato Fools Day (Alternate Reality Game)
- Design: Created mega-puzzle framework to link together dozens of cryptography puzzles.
- Design: Monitored, disseminated, and reacted to weeks of community activity.
- Photography: Scouted Seattle map puzzle locations and photographed image clues.
 Portal 2, Cooperative Testing Initiative
- Design: Developed game flow for connecting with a partner, level selection, and transitions.
- Design: Codified core elements of co-op puzzle design and player gesture system.
- Gameplay: Implemented positioning and timing mechanisms for artist-driven co-op gestures.
- Networking: Resolved late-development lag issues and PS3/PC/Mac cross-compatibility.
- QA: Debugged and solved Xbox 360 and PS3 TCRs.
- PR: Met incoming international press for written and video interviews.
 Portal 2, Peer Review
- Engine: Maintained Xbox 360, PS3, and PC/Mac codebases and automated building systems.
- UI: Developed leaderboard ranking interfaces.
 Selected gameography
- Narbacular Drop (2005)
- Half-Life 2: Episode One (2006)
- Half-Life 2: Episode Two (2007)
- Portal (2007)
- Portal 2 (2011)
- Lamarr Goes to the Zoo (2013)