Senior Product Engineer (AI)
Plain · United Kingdom · Engineering
About this role
Plain is hiring a senior-level Manufacturing Engineer in the operations function based in United Kingdom. The posting calls out experience with Observability, PostgreSQL, LLMs, RAG. Compensation is listed at £90,000–£130,000 per year.
- Role
- Manufacturing Engineer
- Function
- operations
- Level
- senior
- Track
- Individual contributor
- Employment
- Full-time
- Location
- United Kingdom
- Department
- Engineering
- Posted
- Apr 17, 2026
More roles at Plain
Job description
from Plain careersPlain 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
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.