Artificial Intelligence Platform Engineer

Job description

We're hiring an AI Platform Engineer to own the data infrastructure at a Series-funded AI startup. This isn't a specialised role. You'll sit at the intersection of backend and AI engineering. You'll design and own the services and pipelines that move, transform, store and serve data across the product—including the AI-driven parts.

That means: synchronisation across relational, document, vector, graph, object and blob stores. Making sync vs async, lambda vs delta architectural choices. Owning the platform for AI engineers who are shipping fast and need infrastructure to keep up.

What You'll Do

• Design, build and operate production Python services (REST/RPC and queue-based).
• Own the data backbone: ingestion, transformation, storage and retrieval.
• Make architecture trade-off decisions (latency, consistency, cost, operability) and own the consequences.
• Partner with product and AI engineers on clean, API-first service designs.
• Help your AI engineering team move from scrappy to scalable.

What You Need

• 5+ years production Python
• Hands-on experience with multiple database paradigms (relational + at least one of: vector, document, graph)
• Real infrastructure ownership—you've built and owned systems, not just contributed to them
• Comfort with microservice architecture and trade-off reasoning

Nice to have:

• Event-based architecture (Kafka/NATS), infrastructure-as-code, gen-AI in production, product thinking.

About Us

Small, experienced team. 13 people. No middle management—never will be. We move quickly, ship to production continuously, and obsess over product quality.

Series-funded. Backed by top-tier investors.

300+ early users.

Still in stealth.

Why Join

• Ownership You own meaningful parts of the platform end-to-end. Short path from idea to production.
• Team: Small, experienced, high-energy. Direct access to founders. Low process, high autonomy.
• Infrastructure matters here: Data, AI and backend are all first-class concerns—not afterthoughts.
• Real compensation: Up to £130k salary (depending on experience) + equity up to 100% of salary in options.

Culture Note

We work flat. We don't micromanage. We hand you problems and you solve them. That means autonomy. It also means accountability. If you want a framework, process or middle management to hide behind—this isn't the place. If you want to own hard problems and move fast, get applying

Extra information

Status

Open

Education Level

Secondary School

Location

London Area

Type of Contract

Full-time jobs

Published at

19-05-2026

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English