Infrastructure Security Engineer

Crusoe's mission is to accelerate the abundance of energy and intelligence. We’re crafting the engine that powers a world where people can create ambitiously with AI — without sacrificing scale, speed, or sustainability.

Be a part of the AI revolution with sustainable technology e, you'll drive meaningful innovation, make a tangible impact, and join a team that’s setting the pace for responsible, transformative cloud infrastructure.

We are seeking a highly skilled Staff Infrastructure Security Engineer to architect, deploy, and operationalize the foundational security services that will underpin our shift to a Zero Trust model.

In this strategic role, you will define and establish the "roots of trust" for our organization, serving as a technical leader in Secrets Management and Identity architecture. While your immediate focus is to serve as the Subject Matter Expert (SME) driving our enterprise Hashi Corp Vault platform from Proof-of-Concept (PoC) to global production readiness, your long-term scope is far broader. You will be responsible for evolving our credentials management strategy, onboarding engineering teams to secure self-service workflows, and designing scalable trust patterns across our hybrid multi-cloud environment.

1. Strategic Architecture & Governance

• Zero Trust Architecture: Architect a highly available, disaster-resilient, and scalable multi-cluster secrets management platform that serves as the foundation for the organization’s Zero Trust strategy.

• Technical Leadership: Drive consensus across Cloud Engineering, Dev Ops, and SRE teams to define standardized secret management workflows and integrate security patterns into the SDLC.

• Compliance & Governance: Ensure the platform design meets rigorous internal policies and external compliance frameworks (e.g., SOX, ISO 27001).

• Policy as Code: Design and implement advanced governance controls, including Sentinel Policy as Code, to automate security guardrails and access decisions.

2. Platform Engineering & Implementation

• Infrastructure as Code (IaC): Lead the engineering of the Vault infrastructure using Terraform, ensuring all deployments are reproducible, version-controlled, and automated.

• Identity Integration: Architect the integration between the secrets platform, Identity Providers (Okta), and workload identities (Kubernetes Service Accounts) to establish robust machine-to-machine authentication.

• Advanced Secrets Capabilities: Configure and tune essential secrets engines (KV, Transit, KMIP) and Enterprise features (Performance Replication, Seal automation) to support diverse engineering use cases.

3. Operational Excellence & Developer Enablement

• Vault as a Service (VaaS): Operationalize the platform by building self-service mechanisms, distinct "paved road" onboarding procedures, and documentation that allows engineering teams to easily consume security services.

• Observability: Implement comprehensive monitoring, alerting, and audit logging to ensure platform health, provide visibility into usage patterns, and satisfy audit requirements.

• Lifecycle Management: Own the full operational lifecycle of the production environment, including patching, version upgrades, backup/restore procedures, and incident response runbooks.

• 6+ years (or equivalent) hands-on experience in cloud security, Dev Ops, or infrastructure engineering.

• Deep expertise and proven track record deploying and managing Hashi Corp Vault in an enterprise environment (experience with the Enterprise edition is highly preferred).

• Expert-level knowledge of Secrets Management, X.509 PKI (Public Key Infrastructure), Certificate Authority Operations, and Cryptography concepts.

• Strong experience with Google Cloud Platform (GCP) and cloud native identity and access management (IAM).

• Proficiency with Infrastructure as Code (IaC) tools, especially Terraform
  , for automating the deployment and configuration of Vault and its dependent infrastructure.

Technical Skills

• Fluent in at least one programming language (b ideally Go or Python).

• Demonstrable experience with Kubernetes and container security principles, especially integrating secrets into…