When the test scores came out, Lucas Siqueira, 27, was really excited. His high mark on the Foreign Service exam earned him a coveted position at Brazil's highly competitive Ministry of Foreign Affairs.
"They hire 30 diplomats a year and thousands of people sign up," he says in fluent English from his home in the capital Brasilia.
It was, he says, a great day.
Siqueira considers himself to be mixed race, known in Brazil as pardo, or brown.
"I consider myself to be a very typical Brazilian and I've always been very proud of it. In my dad's family, my grandfather is black, my grandmother has Indian and white roots. And on my mother's side they are mostly white, mostly Portuguese," he said.
Read more about affirmative action in Brazil from KPBS.