
Student Becomes Boss's Boss in Tech Reunion Story
A former mentor and his protégé are reuniting 15 years after working together, but this time their roles are reversed. The student who learned startup skills in 2010 now leads a $9 billion company and just hired his former teacher.
Elias Torres hired Andrew Bialecki fresh out of Harvard in 2010 and taught him everything about building startups. Now Bialecki just acquired Torres' company and brought him on as chief product officer.
The full-circle moment happened when Klaviyo, the e-commerce platform Bialecki co-founded after leaving Torres' startup Performable, announced it's acquiring Agency. Torres founded the AI customer service company just three years ago and raised $32 million before the deal.
Back in 2010, Torres was the experienced entrepreneur running Performable when he took a chance on 24-year-old Bialecki as one of the company's first engineers. Torres mentored him on the ins and outs of startup life, and Bialecki absorbed the lessons quickly.
After leaving Performable, Bialecki started Klaviyo and initially bootstrapped the company himself. When he finally raised outside money in 2015, he asked Torres to invest as an angel. Torres said yes, betting on his former student.
That bet paid off spectacularly. Klaviyo went public in September 2023 at a $9.2 billion valuation and now serves 200,000 businesses with marketing automation tools.

Meanwhile, Torres kept building companies. He co-founded Drift and served as CTO for eight years until it sold for $1.2 billion in 2021. Then he launched Agency to build AI agents that handle customer service tasks.
Now Torres and his 25-person team are joining Klaviyo to supercharge the company's AI products. They'll work on Composer, which builds marketing campaigns, and Customer Agent, which handles returns and order tracking.
The Ripple Effect
The reunion goes beyond two friends working together again. Bialecki plans to bring Agency's technology to Klaviyo's 200,000 existing customers and potentially millions more in the coming years.
Both founders believe Klaviyo's years of customer data give them an edge in the AI agent race against competitors. They're betting that combining Agency's fresh technology with Klaviyo's massive dataset will create something special.
"Let's get the band back together, and let's go build," Bialecki said about reuniting with his former mentor at what both see as the next big tech revolution.
Sometimes the best career move is working with people who believed in you from the start.
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Based on reporting by TechCrunch
This story was written by BrightWire based on verified news reports.
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