Charlie Shi

Building in AI. Investing in the future.
Startups • Markets • Technology
Connecting with ambitious minds worldwide.

[Charlie Shi @CharlesShi20]

Hey X! 👋
I’m Charlie, 30, based in SF.

👨‍💻 Founder of Firstello, helping B2B companies find customers. Also in B2B sales and engineering.

🚀 Huge SpaceX fan. Could talk about space all day.

Here to build in public and meet cool people.

Let’s connect if you’re into:

AI & startups
B2B sales
Engineering
Space

Say hi 👇 What are you working on?

[Charlie Shi @CharlesShi20]

@max_aiterrios Vibe code is my best

[Charlie Shi @CharlesShi20]

@kalyanfr Let's connect

[Charlie Shi @CharlesShi20]

@abhinay_v007 Nice job

[Charlie Shi @CharlesShi20]

@itsdanalex Good Dan i‘m working on Firstello

[Charlie Shi @CharlesShi20]

@edisonlky Connected Edison

[Charlie Shi @CharlesShi20]

@Carolyncarterr @X Connect by my side

[Charlie Shi @CharlesShi20]

@dhanush_1109 I kind of like the vibe

[Charlie Shi @CharlesShi20]

@buildinlisbon Nice to meet you Goncalo

[Charlie Shi @CharlesShi20]

@MoSuvo Hey Mo，Always Tesla！

[Charlie Shi @CharlesShi20]

Hey X! 👋
I’m Charlie, 30, based in SF.

👨‍💻 Founder of Firstello, helping B2B companies find customers. Also in B2B sales and engineering.

🚀 Huge SpaceX fan. Could talk about space all day.

Here to build in public and meet cool people.

Let’s connect if you’re into:

AI & startups
B2B sales
Engineering
Space

Say hi 👇 What are you working on?

[Charlie Shi @CharlesShi20]

@vibgyj Good to meet you bro

[Charlie Shi @CharlesShi20]

@algorycofficial Sure！

[Charlie Shi @CharlesShi20]

@Princesah009 Sure！

[Charlie Shi @CharlesShi20]

@naveendinushka Nice any details？

[Charlie Shi @CharlesShi20]

@datatechAI56 thankyou

[Charlie Shi @CharlesShi20]

@master_jpma Sounds cool Juan！

[Charlie Shi @CharlesShi20]

7 years into my career. Joined X back in 2019, just for fun.

Never imagined I’d become a co-founder.

But AI changed everything. After 7 years of learning and growing, I’m finally building something of my own.

300 followers in just one week. Never expected this much support.

Really grateful for this community. Would love to connect with more of you. Let’s build together!

[Charlie Shi @CharlesShi20]

@LordMarket22 Nice

[Charlie Shi @CharlesShi20]

@neo_subhamoy Connected！

[Charlie Shi @CharlesShi20]

@X4DX54 nice pic Mark

[Charlie Shi @CharlesShi20]

Be honest.

Was your first user:

A) A real customer
B) Your best friend
C) Your mom
D) You, testing the signup flow 47 times