Senior Infrastructure Engineer Cloud Kubernetes

2 weeks ago

Denver, CO, United States Calibre Inc Full time

CALIBRE is an employee-owned mission focused solutions and digital transformation company. We are seeking a Senior Infrastructure Engineer to design, deploy, and secure cloud-native and Kubernetes-based platforms for government clients. This role includes supporting Spectro Cloud Kubernetes installations in classified and air-gapped environments. You will be instrumental in building and automating Linux and hybrid cloud infrastructure to enable secure and scalable mission outcomes.

This position requires up to 50% travel to support customer sites and deployments across the United States.

Key Responsibilities:

  • Architect and deploy secure, scalable Linux and Kubernetes infrastructures for government environments.

  • Guide client teams on cloud adoption, infrastructure modernization, and DevSecOps best practices.

  • Implement automation using Ansible, Terraform, and CI/CD tools to streamline infrastructure operations.

  • Ensure compliance with cybersecurity frameworks such as STIG, RMF, and related DoD requirements.

  • Troubleshoot and optimize performance across complex, distributed systems.

  • Mentor client teams on Kubernetes operations, infrastructure automation, and secure cloud practices.

Required Skills

  • Strong experience in Linux infrastructure and cloud-native environments

  • Hands-on Kubernetes administration (2+ years)

  • CI/CD pipeline development and management (3+ years) using GitLab, Jenkins, ArgoCD, etc.

  • Automation expertise with Ansible, Terraform, Python, and Bash

  • Experience securing and troubleshooting distributed systems

  • Knowledge of DoD security frameworks (STIG, RMF)

  • Strong communication and mentoring abilities

  • DoD 8570 IAT Level II certification (Security+ or equivalent)

Required Experience

  • U.S. Citizenship with active Top Secret clearance

  • 8+ years of infrastructure engineering experience

  • 2+ years of Kubernetes administration

  • 3+ years of CI/CD pipeline work

  • Willingness and ability to travel up to 50%

Preferred Experience:

  • Experience with Spectro Cloud Kubernetes

  • VMware and Windows infrastructure in hybrid environments

  • Familiarity with RMF and ATO processes

  • Certifications such as CKA, CKAD, RHCE, AWS, Azure

  • GitOps tools (ArgoCD, Flux)

  • Exposure to edge computing and air-gapped deployments

Qualifications:

  • Strong experience in Linux infrastructure and cloud-native environments

  • Hands-on Kubernetes administration (2+ years)

  • CI/CD pipeline development and management (3+ years) using GitLab, Jenkins, ArgoCD, etc.

  • Automation expertise with Ansible, Terraform, Python, and Bash

  • Experience securing and troubleshooting distributed systems

  • Knowledge of DoD security frameworks (STIG, RMF)

  • Strong communication and mentoring abilities

  • DoD 8570 IAT Level II certification (Security+ or equivalent)

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