We're on a mission to fix testing
Testing shouldn't be slow, flaky, or painful. We're building the tools developers actually want to use.
Our Story
TestRunner was born out of frustration. Our founders spent years battling slow, flaky test suites at companies like Google, Meta, and Stripe.
They watched teams disable tests, skip CI, and ship broken code—not because they didn't care about quality, but because the tools made it too painful to do things right.
In 2021, they set out to build the testing platform they wished existed: fast enough to run on every commit, reliable enough to trust, and developer-friendly enough that people actually enjoy using it.
Our Values
The principles that guide everything we build
Speed Obsession
Every millisecond matters. We optimize relentlessly because slow tools don't get used.
Reliability First
Flaky tests destroy trust. We build systems that are deterministic and predictable.
Developer Love
We're developers building for developers. Great DX isn't a feature—it's the foundation.
Leadership Team
The people making it happen
Alex Rivera
CEO & Co-founder
Ex-Google
Sarah Chen
CTO & Co-founder
Ex-Meta
Marcus Johnson
VP Engineering
Ex-Stripe
Emily Park
VP Product
Ex-Vercel
Backed by the best
$42M Series B led by Andreessen Horowitz
Join our team
We're hiring engineers, designers, and more. Help us fix testing for millions of developers.
View Open Positions