Principal Security Architect | Private AI Cloud Infrastructure

Principal Security Architect | Private AI Cloud Infrastructure Location: Reston / McLean, Virginia Compensation: $250,000–$340,000 base + equity + benefits Type: Full-Time | On-site We are partnering with a well-funded AI research organization building advanced machine learning systems that require extremely secure and resilient infrastructure . They are seeking a Principal Security Architect to lead the design of a private cloud environment used to train and operate large-scale AI systems . This is not a traditional cloud security role. The focus is on designing and securing the infrastructure itself — from compute clusters and networking layers to cryptographic controls protecting sensitive models and research data. What You’ll Do Design Secure Infrastructure Architect a private cloud environment designed to protect highly sensitive machine learning systems and datasets. Network And Compute Isolation Develop security architecture for distributed GPU compute clusters, including hardened networking, segmentation, and zero-trust communication between services. Security Architecture Define how identity, cryptography, and infrastructure controls interact across compute, storage, and networking layers. Threat Modeling Design systems assuming persistent adversarial pressure and build architectures that remain resilient under compromise scenarios. Infrastructure Automation Work with platform engineering teams to implement secure infrastructure deployments using Infrastructure-as-Code and immutable infrastructure principles. Technical Background Strong candidates typically have experience with several of the following: Kubernetes and container orchestration Distributed systems infrastructure Cloud security architecture Hardware-rooted security (HSMs, TEEs, confidential computing) Programming in Go, Rust, or similar systems languages Ideal Profile You are someone who: Thinks about infrastructure security at the architectural level Understands both defensive security and real-world attacker behavior Enjoys solving difficult systems problems rather than managing tools About The Opportunity This role is with a confidential client operating in advanced AI research . The organization is building high-performance compute infrastructure designed to support next-generation machine learning systems . You will work alongside world‑class engineers focused on distributed systems, machine learning infrastructure, and applied security. Compensation Expected base salary range: $250,000 – $340,000 , plus performance bonus and equity. Final compensation will depend on experience and technical depth. #J-18808-Ljbffr