Having been interested in philosophy, science and secular advocacy since my early 20s, it's hard to say when I first started being interested in EA, since it surely was in the meme-air I breathed at that time. But I only got involved with an onsite community very recently. And I have been contributing mainly with translation work. In early 2022, I got the great opportunity to start translating into Portuguese the utilitarianism.net website.

Later I got permission from the authors to translate the introduction to The Precipice: https://80000horas.com.br/introducao-de-o-precipicio-riscos-existencias-e-o-futuro-da-humanidade/

and Doing Good Better: https://80000horas.com.br/introducao-de-fazendo-o-bem-melhor-altruismo-eficaz-e-como-voce-pode-fazer-a-diferenca/

Then this year, I contributed to the translation of the EA Handbook: https://80000horas.com.br/manual/

and BlueDot Impact's Governance course: https://80000horas.com.br/fundamentos-de-seguranca-de-ia/governanca-da-ia-um-curso-introdutorio/

Also, the FLI has put a link to my translation to their Pause AI open Letter on their website: https://futureoflife.org/open-letter/pause-giant-ai-experiments/

and so has Nick Bostrom, when I translated his Letter from Utopia: https://nickbostrom.com/translations/utopia-portuguese.pdf