Senior Infrastructure Engineer (Cloud & Kubernetes) - Remote

CALIBRE Systems Inc; Alexandria (VA); Remote; USD 100,000 - 130,000; Full time

Job summary

An employee-owned digital transformation company is seeking a Senior Infrastructure Engineer to design and secure cloud-native platforms. This role involves architecting Linux and Kubernetes infrastructures for government clients and may require up to 50% travel. The ideal candidate should have extensive experience with automation tools and cloud environments, particularly in compliance with DoD requirements.

Qualifications

• Strong experience in Linux infrastructure and cloud-native environments.
• Hands-on Kubernetes administration (2+ years).
• CI/CD pipeline development and management (3+ years).
• 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).

Responsibilities

• Architect and deploy secure, scalable Linux and Kubernetes infrastructures for government environments.
• Guide client teams on cloud adoption and infrastructure modernization.
• Implement automation using CI/CD tools like Ansible and Terraform.
• Ensure compliance with cybersecurity frameworks.
• Troubleshoot and optimize performance across distributed systems.
• Mentor teams on Kubernetes and cloud practices.

Skills

Linux infrastructure

Kubernetes administration

CI/CD pipeline management

Automation with Ansible

Troubleshooting distributed systems

Mentoring abilities

Education

DoD 8570 IAT Level II certification

Tools

GitLab

Jenkins

ArgoCD

Terraform

Ansible

Python

Bash

Job description

Job Overview

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.

Requirements:

• 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)

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 is an Equal Opportunity Employer, including disability/protected veterans