Principal AI Engineer

Whereby; Manchester; On-site; GBP 120,000 - 180,000; Full time

Job summary

Matillion, the company behind Maia, the AI Data Automation platform, started in Manchester and now global, is seeking a Principal Engineer for the Maia AI team.

You will design agentic AI systems, use evals to validate performance as models evolve, and build new tools and integrations. You’ll drive architecture, mentor engineers, and help shape product strategy in a fast-paced environment.

Responsibilities

• Design agentic AI systems and evaluate them as model capabilities evolve.
• Build new tools and integrations for Maia AI.
• Drive architecture, mentor engineers and contribute to strategy.

Job description

Are you ready to shape the future of data?

Matillion is the company behind Maia, the AI Data Automation platform.

In the AI economy, demand for data is exploding. Manual data engineering can’t keep up. Maia fixes that by combining 15 years of data expertise with agentic AI to eliminate the manual work that slows data teams down. Organisations like Cisco, DocuSign, and Slack are already using it to deliver real business impact, faster.

We started in Manchester and now we’re global - with teams across the UK, US and India.

We are driven, curious, energetic people who move fast, think big and hold ourselves to a high standard. We’re here to make a dent in the universe bigger than ourselves. And we’re looking for people who want to be part of it.

About the role

As a Principal Engineer on our Maia AI team, you'll be at the heart of everything we do: designing agentic AI systems, leveraging evals to continually validate their performance as model capabilities evolve, building new tools and integrations, and staying finger-on-the-pulse with the latest developments in Gen AI. This isn't BAU engineering – this is high-visibility, high-impact work where your decisions shape the product.

You’ll be driving architecture, mentoring engineers, and feeding into strategy. Things move quickly here. Requirements evolve, new opportunities emerge, and we need someone who thrives in that environment. If you have been working on Agentic AI projects and taking them into production environments – and you want to do that at scale in a world-class engineering team – this is the role for you.