
The most powerful AI-native support platform for scaling B2B teams. Plain helps you support your customers where they work – and move from answering tickets to building genuine relationships. Powering support at: Raycast, Stytch, Sanity, Granola, Resend, Evervault, Galileo, Mintlify, and hundreds more.

The most powerful AI-native support platform for scaling B2B teams. Plain helps you support your customers where they work – and move from answering tickets to building genuine relationships. Powering support at: Raycast, Stytch, Sanity, Granola, Resend, Evervault, Galileo, Mintlify, and hundreds more.
What they do: API-first, AI-powered B2B customer support platform that consolidates conversations across Slack, Teams, email, product chat and more into a single workspace.
Founders: Simon Rohrbach and Matt Vagni
Recent funding: $15M Series A (Feb 2025); prior $6M seed (Nov 2022)
Employees: ~43
Customer support and internal collaboration for B2B software teams.
Software Development
$6M
$15M
Series A included continued participation from Index Ventures and Connect Ventures; part of proceeds to establish a U.S. office.
“Backed by Index Ventures, Connect Ventures (seed) and Battery Ventures (Series A)”
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Plain is redefining customer support for the next generation of B2B companies. We’re building the fastest, most powerful platform to help companies move beyond reactive support and build true customer relationships.
Some of the world’s most forward-thinking companies - like Cursor, Vercel, and Granola - trust Plain to unify all customer interactions, enable faster team collaboration, and supercharge their workflows with AI.
B2B customer support is undergoing a seismic shift. AI is transforming the way companies engage with customers, shifting support from a siloed function to a company-wide effort across Slack, Discord, and any other channel you talk to customers in. The old way - slow, manual, and disconnected - no longer works.
What you'll do
We’re in a rare spot. Plain is already powering support for high-growth companies with a lightning-fast, deeply scalable platform. AI has been part of our DNA from the start. Now we’re doubling down to define how it shapes every layer of modern customer support.
This is where you come in.
We're looking for a customer obsessed Senior Product Engineer to help take our AI ambitions to the next level. You’ll build the Infrastructure that helps us build AI features quickly, safely and with confidence. You’ll own problems end to end, and play a key role in building a category-defining product.
In this role, you will:
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