Principal AI Platform Engineer – Build What Actually Matters
This isn’t another AI role! This is where AI meets real-world impact at serious scale.
One of the most impressive start-ups in the UK right now is building technology that tackles complex, high-stakes problems head-on. They’re assembling an elite team to define how AI systems operate in production - and they’re looking for someone who can lead from the front.
The Role
You’ll architect and build the core AI platform powering next-generation agent systems.
Not prototypes. Not demos. Production-grade, mission-critical systems.
Expect to:
* Design and deploy AI agents at scale, in real environments
* Build platform infrastructure from the ground up
* Own reliability, observability, and performance of AI systems
* Define how agents interact with data, tools, and users
* Work across backend, infra, and AI to deliver robust, scalable systems
This is high ownership, high ambiguity, and high impact.
You Might Be a Fit If…
* You’ve built and run AI agents in production (not just experimented)
* You’ve designed platforms from scratch and understand what good looks like
* You think deeply about reliability, SRE, DevOps, auth, and system design
* You’re strong in Python / Go / backend systems
* You have a product mindset and care about real-world outcomes
* You set a high bar - and expect the same from those around you
Why This Role
* Work on problems that actually matter, at meaningful scale
* Join a world-class team of exceptional engineers
* Shape the foundations of an AI platform from day one
* Move fast, own decisions, and see your work in the real world
This is for people who want to build something that lasts. If you’re in the top percentile of engineers and want a challenge that matches it - this is it.
Principal AI Platform Engineer – Build What Actually Matters