In this study, I explored how the racialized and gendered experiences of Black men STEM Ph.D. academicians influenced their decision-making related to college and/or career. Participants recalled experiences that covered a time span from as early as PreK to as recent as the day prior to their interviews. I analyzed their experiences via the lens of Black Masculinity and the concept of decision-making. The research questions guiding this study were: (1) How did race and gender influence Black men's lived experiences in STEM? and (2) How did Black men's racialized and gendered experiences in STEM influence their decision-making and career trajectory? Findings are presented in two parts: 1) participant profiles that focused on each participant's more salient experiences and 2) a cross-case analysis where I identified themes across the participants' collective experiences. The four themes that emerged were the types and prevalence of racialized and gendered experiences, the presence and role of support systems, STEM identity and careers in academia, and motivation and perseverance. I also identified four common threads that wove through the themes discussed in the findings: 1) the presence of an inner drive, 2) difficulty in separating their Blackness from their masculinity, 3) early and consistent identification of supporters, and 4) their determination and desire to add value and give back to their communities. This study contributes to the current literature by examining the decision-making processes of Black men who had successfully completed their doctoral studies and attained employment as a faculty member or researcher in a non-health-related STEM field. Learning how their experiences influenced their decisions gave voice to a seldom-heard-from group of individuals in STEM and revealed how current strategies and policies can be enhanced for longer-term impact in supporting Black men and other minoritized individuals interested in and currently pursuing careers in STEM. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]