KEY POINTS
  • SpaceX vice president of build and flight reliability Hans Koenigsmann is retiring and has begun transitioning his role to former top NASA official William "Bill" Gerstenmaier, according to note to employees that was seen by CNBC.
  • Koenigsmann, a German-born aerospace engineer, joined Elon Musk's company as its fourth technical employee in 2002.
  • In the note, Koenigsmann said he will become a technical advisor for the company, working part-time to support SpaceX's work on reliability and anomaly investigations.
SpaceX vice president of build and flight reliability Hans Koenigsmann (left), former NASA director of human spaceflight William "Bill" Gerstenmaier (right).

SpaceX vice president of build and flight reliability Hans Koenigsmann is retiring, CNBC has learned, and has begun transitioning his role to William "Bill" Gerstenmaier, the former NASA official that joined the company a year ago.

Koenigsmann said he had been contemplating retirement and believes it is the right time to hand over the reins to Gerstenmaier, according to memo in late January to SpaceX employees that was seen by CNBC.