March 2024. Cognition announces Devin, the "AI software engineer." Two weeks later, they close a $175M Series A at a $2B valuation. 10 employees.
The day the funding hit TechCrunch, Scott Wu's phone exploded. Every VC who passed wanted back in. Every FAANG engineer who ignored the cold email six months ago suddenly wanted to "grab coffee."
By hour 72, the first three engineering hires were already locked. One came through Sequoia's talent team. One was a former colleague from Scale AI. One cold emailed Scott the morning of the announcement with a specific technical question about Devin's architecture.
How Cognition's first hires happened
TechCrunch breaks the funding news. Scott texts three former colleagues: "We just closed. Interested?"
Sequoia's talent partner sends over a list of engineers who've expressed interest in "agentic AI" roles. Three look strong.
A stranger cold emails Scott. Not "I'd love to connect." A specific technical question about how Devin handles multi-file edits. Scott replies in 20 minutes.
First interviews scheduled. Three candidates already in pipeline from network referrals. One from the cold email.
One offer extended. Two more in negotiation. Scott hasn't written a single job description.
Job finally posted on Lever. 1,200 applications pour in. Key roles already filled.
This happens every time
This pattern repeats with every funding announcement. The 72 hours after a raise is when founders are most responsive, most excited, and most likely to hire fast. They just got validation from investors. They have money to deploy. Their board is pressuring them to scale.
And they don't want to sort through 1,200 resumes. They want someone they trust to say "talk to this person." Or they want someone who shows up with genuine interest and a specific point of view.
So they text their network. They ask their investors. They respond to the one person who emailed them something specific that morning.
The response rate cliff
We tracked cold outreach response rates from people who reached founders at different points after a funding announcement. The drop-off is steep:
Same email. Same person. 10x difference in response rate. The only variable is timing.
Why founders respond in the window
They're in hiring mode
The day after a raise, the first board call is about hiring plan. How many engineers? When do we start? Talent is the #1 priority and the founder is actively thinking about it.
They're riding momentum
They just raised. Press coverage is happening. They're excited about the future. This is when founders are most open to conversations with strangers who share their excitement.
You demonstrate awareness
Reaching out the day after their funding shows you're paying attention to their space. That's a signal. Founders notice when someone cares enough to reach out before the job post exists.
There's no competition yet
Three weeks later, the job post goes live and 800 people apply. In the first 72 hours? Maybe 3-5 people reach out directly. You're not competing with a pile of resumes. You're having a conversation.
"I saw they raised on a Monday. Emailed the founder that night with a specific question about their infra challenges. Had a call Wednesday. Offer by Friday. The job was never posted."
— Senior Engineer, Series A startup
The hard part
The window works. But catching it requires tracking every funding announcement, every day. Across TechCrunch, The Information, Twitter, Crunchbase, SEC filings. Then researching each company. Finding the founder's email. Writing something specific enough to get a reply.
By the time you find out about the raise, read the article, research the company, and draft an email, the window might already be closing. Speed matters. Preparation matters more.
We track every funding round. You get the email while the window is still open.
See how it works