Senior Infrastructure/ Platform Engineer (TS/SCI) in Mundelein

• Deep experience with Kubernetes and Docker. Standing up a cluster from scratch is a big plus. \n

• Experience with infrastructure as code using Pulumi or Terraform. \n

• Solid AWS experience, especially building environments from the ground up. \n

• Experience with management and SSO (e.g., Keycloak, Authentik, or other providers). \n

• Experience with package and artifact management (e.g., Artifactory, Nexus). \n

• CI/CD experience, ideally with GitHub Actions. \n

• Strong Linux and networking fundamentals.

A fast-growing, profitable defense technology company is hiring a Senior Infrastructure/ Platform Engineer. They build data management and AI platforms for maritime domain awareness, and their software runs in the field with U.S. Navy customers.

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This role is on the team that builds their secure developer platform. Defense teams working on classified networks usually start with an empty environment: no package registries, no code hosting, none of the usual developer tools. This platform gives them a ready-to-use environment on classified networks, with source control, artifact repositories, packages and CI/CD already in place. The company builds it, uses it every day and supports it.

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What You’ll Do:

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You’ll be the on-site partner to a small core infrastructure team. That team writes infrastructure as code in unclassified environments. Your job is to make that code run on the Secret-side and air-gapped networks, where things are always a little different.

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• Bring existing infrastructure-as-code into classified and air-gapped environments, deploy it, troubleshoot it and get it working. \n

• Write new code when an environment behaves differently than expected. About 60% of the work is adapting existing code and 40% is writing new code. \n

• Commit your changes back to the main codebase as a full contributor, not just someone who reports what broke. \n

• Self-host and maintain the tools a secure developer environment needs, such as Git hosting, artifact repositories, /SSO and package management. \n

• Deploy and run services on Kubernetes without relying on managed services. \n

• Help with CI/CD, DevSecOps pipelines, secrets and configuration management, and observability. \n

• Work across codebases outside your own when needed. The team is small, so there are no narrow lanes. \n

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Experience Requirements:

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• Active TS/SCI clearance. The work itself is at the Secret level, but the facility requires TS/SCI to get in. \n

• Strong hands-on experience self-hosting applications, with on-prem or bare-metal experience. You’ve run your own infrastructure instead of relying on managed services.