Rafael Sambo Domingos was born in 1977 in Cabinda, Angola. He received his education in elementary school, secondary school studying biology and chemistry, and university earning a degree as a Technical Engineer in Chemistry and Food Industries in 2008. His work experiences include import/export, water analysis, a trainee in a water quality laboratory, painting, and currently working in a cementing laboratory at Halliburton since 2012 as a Chemistry Assistant Scientist. He is proficient in Portuguese and French written and spoken, and has a basic level of English written and spoken.