
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…

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…
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, Raycast, 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 Engineering at Plain is about much more than moving tickets from left to right - it’s about owning and solving problems end to end, from infrastructure decisions to feature design to button copy.
You will:
Help set product direction. You’ll contribute to both the technical architecture and the roadmap, balancing customer feedback with long-term product health.
This is a great fit if you…
This won't be the right role if you…
Compensation Range: £90K - £130K
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Ship features end to end. You’ll scope, build, and launch product features that directly solve customer problems. We’re structured into the following teams right now:
Core Product: Own all customer-facing channels (Slack, Discord, Email, etc), core data models, and customer requests. You’ll balance moving fast to win customers with investing in strong foundations for the future.
Developer Infra: Build the tools that every engineer at Plain depends on to ship and operate the product. Your focus is on making the team faster, removing roadblocks before they happen, and ensuring everything we build is easy to run, debug, and control in production.
Shape our backend architecture. You’ll tackle some of our most complex challenges, from data modeling to high-performance reporting, and help set the standard for how we build across the company.
Create a stellar developer experience. From data pipelines to APIs, you’ll make sure Plain is not only great to use but also great to build on.