Terrible work environment and culture. The pace and the demands of the job eventually wear you down mentally and physically and many employees end up needing mental health care. Everyone who works on a scientific or technical team is eventually forced out of the organization by their manager or management, usually in a horrible undignified way. Employees are used by the organization until they are burned out and then they are cast adrift. The co-chairs when asked will admit that they aren't looking for long term employees. What matters most to the BMGF is the Gates' family brand.