Guatemalan @ Silicon Valley 🪄1x Exit, 2x Tech Founder 🏗️ Building Simera (AI platform for sourcing Latin American talent) 🧚🏼 I saw the future- it' good.
San Francisco
Joined April 2021
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So many creators lose their unique soul to become something that the masses are willing to give a like to.
If you will follow a viral content playbook, please follow the one that will honor your story, your intention, and heart. You've got this. I love you.
Sofia Castillo retweeted
How could we let this happen?
To quote Klaus Schwab, Founder of the World Economic Forum, on the impact of cyber security across our societies, economies, and geopolitical landscape:
"The COVID-19 crisis would be seen in this respect as a small disturbance in comparison to a major cyber attack."
"[...], which would bring to a complete halt to the power supply, transportation, hospital services, our society as a whole!"
Sofia Castillo retweeted
NOW HIRING: Engineers that want to work on something impactful.
Over the last year, we have been collaborating with multiple Fortune 500 CISOs, some of the world’s largest defense contractors, and other globally recognized organizations. All the while being backed by multiple Tier-1 VC firms here in Silicon Valley.
If you want to help protect our societies, economies, and geopolitical landscape against a rapidly growing set of global threat actors, we want to hear from you.
The world we know is no longer the same: Technology does not turn off when you close your laptop or turn off your phone.
How could we let this happen?
To quote Klaus Schwab, Founder of the World Economic Forum, on the impact of cyber security across our societies, economies, and geopolitical landscape:
"The COVID-19 crisis would be seen in this respect as a small disturbance in comparison to a major cyber attack."
"[...], which would bring to a complete halt to the power supply, transportation, hospital services, our society as a whole!"
Sofia Castillo retweeted
congrats to @Honestbubble, named to Forbes 30 Under 30 2025 in tech & innovation! she’s a co founder of Simera, empowering tech talent across Central America.
checkout what she is building 👇
Sofia Castillo retweeted
more people should chase their dreams. delta is your nudge.
✈️ free flights to SF
🏠 3-month fully funded residency
💸 up to $1M in funding
apply now 🔗👇
Sofia Castillo retweeted
20 builders. 5 months.
demo day this thursday - inside a 16 storey vertical village.
limited seats, link below.
Sofia Castillo retweeted
Just because what else are we going to do with all the videos right? @theresidency @JoshConstine @PeterDAmbrosio & @Honestbubble
Sofia Castillo retweeted
@ everyone
a german hacker came to our home in sf 🇩🇪
he showed us how he hacked tesla at 18
we were there, why weren't you?
ep.2
Tech Founders in Latin America 👀 Here’s why you should apply to @ycombinator today (maybe not the reasons you think) 🌎 Deadline for the next batch is tomorrow, Tuesday 13th 🤷🏻♀️
I recommend you follow @garrytan for updates.
Here’s YC’s request for startups: lnkd.in/eg_bQRwF (that site not super friendly haha my friends are building a friendlier version of Calls for Startups that will be launched soon, stay tuned)
For women in tech: I wanted to share my experience living in hacker houses / founder houses (like @theresidency). In the video I also share what it’s been like navigating events, solo travel, and other parts of the ecosystem as a woman.
Love you. May you continue building amazing stuff surrounded by amazing people.
Sofia Castillo retweeted
I built an AI-powered personal website with an AI clone of myself for the @lovable #hackathon, here’s some unique features inside:
1. A posh AI-voice butler named Alfred powered by @elevenlabs that helps you navigate the site and narrates the storyline.
2. The AI Clone is trained on all my writing and content on the site, that you can engage with, all powered by @AnthropicAI
3. A public inbox for visitors to send me messages, collected and handled by @supabase
4. Dynamic content system for images, writing, blog posts, and more all powered by @supabase
5. Dark Mode for every page
6. Star Wars Hyperdrive to take you back to the Home Screen.
7. Easter egg hunt
8. Unique, one-of-a-kind background images co-designed with @OpenAI
the site link is below, go explore !
To my tech founder friends (if you're not a tech founder pls don't read, this is a secret message) 👇🏼 👇🏼 👇🏼 Why I hope you app crashes.
Hey, I hope our solutions crash once we go live and public, and I hope that people criticize us a lot. I hope this because that will mean that we actually dared to go live, that we dared to build in public to get user feedback, and that we are daring to improve our solutions as we go.
May perfect never be the enemy of our progress. Amen.
Afraid of having big tech “steal your idea” or “launch it first”? This is a conversation I have heard a loooot around as I build here in Silicon Valley - here are some of the conclusions we have gotten to with my founder friends.
Calling all Latinas in Tech building in SF (founders/innovators/ devs/product/creatives) 🚀 We are hosting our first Co-work Fiesta, and we want to meet you there.
🏃🏻♀️Only 15 spots for this one, sign up here: lu.ma/qm7o213o
💃🏻👇🏼What is the fiesta going to look like?
