Senior Infrastructure Engineer (Cloud & Kubernetes)

Category Information Technology Job Location Denver, Colorado Tracking Code CTO 5158-585 Position Type Full-Time/Regular 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 • 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 CALIBRE and its subsidiaries are an Equal Opportunity Employer and supports transitioning service members, veterans and individuals with disabilities. We offer a competitive salary and full benefits package. To be considered, please apply via our website at www.calibresys.com. Come join our dynamic team. #CALIBRECareers