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ML Production Engineer — Origination Decisions

Company: Aviva

Location: Mexico, London

Posted: June 04, 2026

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Position Details

About The Team

The Origination Decisions team builds and operates the machine‑learning‑powered system that decides whether to approve loan applications and under which conditions. The team is small (4 people) and every member owns a vertical slice of the product end‑to‑end — from data pipelines through model training to production deployment — for a subset of lending products. You will therefore not only lead improvements in your area of expertise, but also regularly use the full stack as an end‑user, giving you first‑hand insight into what works and what doesn’t.

The Role

You will own the production lifecycle of our ML‑based decision services: deploying them reliably, monitoring them continuously, and making them easy to evolve. This is not a traditional DevOps or SRE role. You need to understand how machine‑learning systems fail — silently degrading predictions, distribution shifts, broken upstream schemas that subtly bias features — and design safeg...