Level 3 Communications, Inc

System Administrator (Clearance Needed)

Level 3 Communications, Inc$80K — $149K *
Aerospace & Defense
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's Degree with 4 years experience or Graduate Degree with 2 years experience, or 8 years related experience in lieu of a degree
  • Secret Clearance
  • DoD 8570.01-M IAT Level 2 certification required
  • Professional certifications such as CCNA-Security or Security+ CE
  • Strong technical expertise in Red Hat Enterprise Linux and AWS technologies

Responsibilities

  • Deploy, manage, and optimize AWS cloud infrastructure for mission-critical applications
  • Utilize AWS cloud technologies including Amazon Machine Images (AMI)
  • Support and maintain CI/CD pipelines for secure software delivery
  • Collaborate with software development, DevSecOps, and cybersecurity teams for service integration
  • Automate system administration tasks with scripting and infrastructure-as-code
  • Implement virtualization technologies like KVM, VMware, and Docker for enhanced functionality
  • Maintain security controls in line with DoD frameworks and RMF requirements

Benefits

  • Health and disability insurance
  • 401(k) match
  • Flexible spending accounts
  • Employee assistance program (EAP)
  • Education assistance
  • Parental leave
  • Paid time off
  • Company-paid holidays
Full Job Description
Job Title: System Administrator

Job Code: 39399

Job Location: Colorado Springs, CO

Job Schedule: Standard 9/80 (Every other Friday Off)

Job Description:

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.

Essential Functions:

  • 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.


Qualifications:

  • 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


Preferred Additional Skills:

  • 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.


In compliance with pay transparency requirements, the salary range for this role in Colorado state is $80,500-$149,500. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements.

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