 Ramba uchiverenga ndima iyi - Pashure pokubhururuka kwake paSTS-85, Davis akaendeswa kuhofisi huru yeNASA somutungamiriri weHuman Exploration and Development of Space HEDS, Independent Assurance Office for the Office of Safety and Mission Assurance. Pachinzvimbo ichocho, Davis akatarisira uye akatungamirira kuongororwa kwakazvimirira kwezvirongwa nemapurojekiti akapiwa sangano reHEDS. Muna Chikunguru 1999, akaendeswa kuMarshall Space Flight Center saDirector weFlight Projects Directorate, yaive nebasa reInternational Space Station ISS Payload Operations Center, ISS Hardware uye Chandra X-Ray Observatory Chirongwa. Pashure pengozi, akagadzwa mukuru weKuchengetedza uye Kuvimbiswa kweMission paMarshall, kwaakavimbisa kudzoka kwakachengeteka kuenda kunhandare ye Space Shuttle. Davis akasiya basa kuNASA muna 2005 uye akashanda kuJacobs Engineering Group seMutevedzeri weMutungamiri uye Mutevedzeri Mukuru Mukuru. Iye zvino anoshandira Bastion Technologies, Inc. seManeja weSecurity uye Mission Assurance Support Contract Chirongwa paMarshall Space Flight Center. 