System Administrator (Clearance Needed)

L3Harris•Fountain, CO

5d•Onsite

About The Position

We are seeking a skilled and experienced Cyber Infrastrastructure Systems Engineer (CISE) to join our Colorado Springs, CO team. This role requires an experience system administrator to support mission-critical systems and infrastructure in a secure environment. The ideal candidate will have deep experience administering complex enterprise systems, maintaining secure AWS infrastructure, supporting cybersecurity compliance, and enabling modern development and CI/CD platform operations. This role requires strong technical expertise in Red Hat Enterprise Linux (RHEL), AWS technologies, platform engineering, and secure systems administration practices.

Requirements

Bachelor’s Degree with a minimum of 4 years of relevant experience, or Graduate Degree with a minimum of 2 years of relevant experience, or in lieu of a degree, a minimum of 8 years of prior related experience.
Secret Clearance
DoD 8570.01-M IAT Level 2 Required Professional Certifications: CCNA- Security, Security+ CE, or higher certification

Nice To Haves

Knowledge of Kubernetes, containers, or OpenShift platform administration.
Experience with Infrastructure as Code tools such as Terraform or Ansible.
Familiarity with DevSecOps practices and secure software development environments.
Experience with centralized logging, monitoring, and endpoint security tools.

Responsibilities

Deploy, manage, and optimize AWS cloud infrastructure supporting mission and business applications.
Utilize cloud technologies such as Amazon Web Service (AWS) Amazon Machine Images (AMI)
Support and maintain CI/CD pipeline platforms to enable secure and efficient software delivery.
Collaborate with software development, DevSecOps, and cybersecurity teams to integrate infrastructure and platform services.
Automate system administration tasks using scripting and infrastructure-as-code approaches where applicable.
Utilize virtualization technologies such as KVM, VMware, vSphere/vCenter, and microservices/containers (e.g., OpenShift, Docker) to enhance system functionality and efficiency.
Implement and maintain security controls in compliance with DoD security frameworks and RMF requirements, integrating RMF principles into ground-up builds and ongoing security administration.