Cloud Infrastructure System Administrator, Jr-Sr - TS/SCI with CI Poly, $95K-$210K +15% 401k

Millennial Software Solutions • Sterling, VA

3d

About The Position

Millennial Software is seeking a Linux Systems Administrator to support and maintain Linux workstations, servers, cloud infrastructure, and network environments across local and remote systems. The role calls for strong Linux command-line, cloud technology, and infrastructure-management skills, including the ability to troubleshoot complex technical issues across varied IT environments.

The administrator will work with IT professionals to maintain reliable infrastructure, support cloud resources, and assist with hardware and network deployments. The position provides opportunities to work with AWS, Nutanix, automation tools, and Infrastructure as Code technologies across on-premises and cloud-based environments. An active TS/SCI clearance with CI Polygraph is required.

Requirements

• Must be a U.S. citizen.
• Must currently possess an active TS/SCI clearance with CI Polygraph.
• Current DoD 8570 IAT Level II certification (Security+ or CISSP), or ability to obtain certification within 1–2 months of starting.
• Bachelor’s degree in Computer Science, Information Technology, or a related discipline.
• 10+ years of relevant experience in Linux server and desktop administration and network troubleshooting.
• Strong understanding of Linux operating systems and command-line administration.
• Knowledge of DevOps practices, methodologies, and infrastructure management.
• Ability to troubleshoot and support both cloud-based and on-premises infrastructure.
• Willingness and ability to learn new technologies and adapt to evolving technical environments.

Nice To Haves

• Experience with configuration management and identity management tools such as Puppet and FreeIPA (IPA).
• Familiarity with Kubernetes and containerized environments.
• Experience configuring and troubleshooting Juniper and/or Cisco network switches.
• Experience supporting Cloud-in-a-Box solutions, including Nutanix.
• Experience with Proxmox virtualization environments.
• Experience with Ansible, automation, and scripting languages.
• Experience with Packer, Kickstart, and Amazon Machine Image (AMI) creation.
• Experience using Infrastructure as Code (IaC) technologies such as Terraform and AWS CloudFormation to provision cloud and on-premises resources.

Responsibilities

• Provide local Linux desktop support, including system configuration, troubleshooting, and maintenance.
• Administer and support remote Linux servers and cloud-based infrastructure.
• Support and maintain local and remote Cloud-in-a-Box infrastructure, including Nutanix environments.
• Assist with hardware deployments, configuration, maintenance, and troubleshooting.
• Manage and maintain cloud-based resources and infrastructure within Amazon Web Services (AWS).
• Support identity and access management services, including FreeIPA (IPA).
• Maintain and support configuration management and automation tools such as Puppet and Ansible.
• Troubleshoot cloud-based network infrastructure and assist with resolving connectivity and performance issues.
• Support local network troubleshooting and maintenance activities.
• Assist with configuring and maintaining network switches and settings for deployed hardware.
• Develop and maintain technical documentation, system configurations, and infrastructure procedures.
• Identify opportunities to improve infrastructure reliability, automation, and operational efficiency.

Benefits

• 100% company-paid medical, dental, and vision premiums for the employee and all dependents.
• Ability to get increased salary if medical, dental, and vision coverage is not needed.
• 100% company-paid disability and life insurance benefits.
• 15% 401(k) company contribution.
• 30 days of PTO/holidays.
• Generous training budget.
• Paid paternal and maternal leave.
• Business development and growth incentives.
• Company swag.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior