Alejandro Castillo is a Software Engineer at Google at Google. He possess expertise in portuguese, java, python, native spanish speaker, idris and 4 more skills. He is proficient in Portuguese. Colleagues describe him as "I first met Alejandro in his interview loop and became his mentor when he joined Microsoft as a software engineer. I can sum up Alejandro in one word - perseverance. If he sets his mind to something, he absolutely succeeds in it. I first saw this in the interview loop. The coding question I gave him was very tricky (and not your standard leetcode question). For about 30-40 mins, he kept approaching and attacking the problem from different angles, till he finally succeeded. I have seen many interviewees get frustrated and give up, but not Alejandro. Upon joining, he immediately became a key member of his team. Feedback is unanimously positive. His drive for action and alignment with organizational vision are fundamental strengths that I have not seen in a lot of junior engineers. Alejandro clearly understands what it takes to succeed and he has no problems putting countless hours, working smartly, to achieve it."