Senior Backend Engineer – AI Platform & Scalable Infra

Company: Plum
Apply for the Senior Backend Engineer – AI Platform & Scalable Infra
Location: London
Job Description:

Plum is seeking an experienced AI Platform Engineer to build and maintain scalable infrastructure supporting AI-powered products across the company. You’ll own and evolve internal frameworks and services used by multiple product squads.

You will establish best practices for prompt engineering, AI guardrails, and evaluation methodologies, ensuring safe deployment, monitoring, and iteration of AI applications. A strong focus on observability and cost efficiency guides this role.

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Posted: July 10th, 2026