Remote AI Security Architect (Python, AWS)

3Pillar is seeking a Software Architect to design a sophisticated, multi-tenant AI security platform and production-grade pipeline. You will own architectural decisions, ensure secure data isolation, and defend against prompt injection while guiding a small team of AI engineers and backend developers.

Lead the technical direction from design to delivery, engage with client stakeholders, and drive ADRs and architectural reviews to ensure auditability and reproducibility across the system.