Principal Backend Engineer — Hybrid Data Platform

Publicis Media in London is seeking a principal-level backend/data platform engineer to own backend and data architecture across pipelines and platform APIs. You will shape data contracts, guide Databricks medallion pipelines, and implement AWS serverless patterns with secure, scalable designs.

The role demands senior leadership, mentoring, architecture decisions, and a pragmatic approach to trade-offs. You will work primarily from the office or client sites four days per week.