Senior Infrastructure Engineer (Cloud & Kubernetes)

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 can be based in Melbourne, FL; Huntsville, AL; Denver, CO; or Salt Lake City, UT

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/Must be able to obtain Security 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