Senior Backend Engineer AI-Driven (Java & Python)

Epsilon, a Publicis Groupe company, seeks a Senior Software Engineer to design, build, and scale robust backend systems using Java and Python in an Agile environment, with strong emphasis on spec‑driven AI‑assisted development. You’ll leverage Cursor, Claude Code, and Kiro to accelerate delivery while ensuring production quality. You will lead architecture discussions, own end‑to‑end delivery from design to production, and collaborate with product, data, and platform teams to solve complex