Senior Software Engineer, Security

Crusoe is on a mission to accelerate the abundance of energy and intelligence. As the only vertically integrated AI infrastructure company built from the ground up, we own and operate each layer of the stack — from electrons to tokens — to power the world's most ambitious AI workloads. When you join Crusoe, you join a team that is building the future, faster.

We're in the midst of the greatest industrial revolution of our time. The demand for AI compute is boundless, and power is a bottleneck. We're solving that — with an energy-first approach that makes AI infrastructure better for the world and faster for the people innovating with AI.

We're looking for problem-solving, opportunity-finding teammates with a sense of urgency, who believe in the scale of our ambition and thrive on a path not fully paved — people who want to grow their careers alongside a team of experts across energy, manufacturing, data center construction, and cloud services.

If you want to do the most meaningful work of your career, help our customers and partners advance their AI strategies, and be part of a high-performing team that believes in each other, come build with us at Crusoe.

As a Senior Security Software Engineer at Crusoe, you will design, build, and deploy scalable services, platforms, and tools that provide the foundational technical capabilities for product security controls, PKI, and Secrets Management. The core charter of this role is to implement automation that eliminates manual steps involved in understanding, remediating, and preventing security risks across the enterprise.

This work sits at the intersection of production engineering systems and complex security automation, translating technical security requirements into highly scalable, reliable, production-grade infrastructure. You will take end-to-end ownership of your technical systems, spanning detailed software design, development, thorough testing, and robust deployment via automated integration pipelines (CI/CD), ensuring our security systems are highly available and operate effectively at scale.

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• Familiarity with foundational security and compliance control models (e.g., SOC 2, ISO 27001).

• Experience developing tools or data pipelines utilizing cloud-native streaming and event infrastructure.

• Strong debugging and systems-level troubleshooting skills in public cloud networks.

• Experience engineering and maintaining foundational platform security tools, including PKI infrastructure and Secrets Managers (e.g., HashiCorp Vault).