Complex sentence: In January 2005, Jepsen joined Nicholas Negroponte to lead the design, partnering, development and manufacture of the laptop, and for the entire first year of the effort was the only employee of One Laptop per Child (OLPC).
Split into simpler sentences: In January 2005, Jepsen joined Nicholas Negroponte to lead the design, partnering, development and manufacture of the laptop. For the entire first year of the effort (2005) she was the only employee of One Laptop per Child (OLPC).