Proofpoint is seeking Software Engineers to expand and evolve our Capture and Intelligence platform inside Proofpoint. This person will work in a Python-first monorepo that powers communications capture, compliance workflows, event processing, AI classification, agentic investigations, and emerging decision-governance products. This is a role for someone who can operate in real production complexity: external APIs, OAuth flows, rate limits, async job orchestration, Postgres databases, customer-specific edge cases, LLM-powered intelligence, and enterprise-grade reliability. The ideal candidate is a strong coder, who can take ownership of components and workflows, and work collaboratively with curiosity and precision in a high calibre team.