Senior System Administrator

Senior System Administrator

Reflexive Concepts is seeking a skilled Senior System Administrator. Join an existing team providing Life Cycle Sustainment (LCS) activities for commercial and custom-developed education, learning, and training applications. This is a self-motivated role on a fast-paced team, requiring a willingness to take on challenges in a collaborative environment.

Primary Responsibilities:

• Perform IAVA patching and reporting across enterprise systems.
• Maintain and administer Windows Server (various versions) and Linux server environments in a hybrid infrastructure.
• Provide troubleshooting, maintenance, and operational support for IT systems, including both on-premise and cloud-hosted environments.
• Execute patching, software maintenance, and upgrades for Linux and Windows systems.
• Implement and manage Windows Group Policy Objects (GPOs) and perform PowerShell scripting for automation and administrative tasks.
• Utilize AWS services, including EC2, Lambda functions, CloudFormation, and cloud-native scripting to automate deployments and manage cloud infrastructure.
• Support infrastructure-as-code initiatives using Ansible and Terraform for automation, configuration management, and provisioning.
• Develop and maintain system scripts and automation tools to streamline operations and improve system reliability.

Required Qualifications:

• Fifteen (15) years of experience as an SA in programs and contracts of similar scope, type, and complexity.
• A bachelor's degree in a technical discipline from an accredited college or university. Five (5) years of additional SA experience may be substituted in lieu of a bachelor's degree.
• DoD 8570 compliance with Information Assurance Technical (IAT) Level I, as specified in the individual TTOs.
• Proficiency maintaining various versions of Windows Server, including hardening, patching, upgrading, and disk management.
• Linux server experience, including patching and software maintenance.
• Experience with IAVA patching and reporting.
• Experience maintaining and upgrading various types of installed software.
• Skilled in problem solving and troubleshooting of computer systems and software.

Desired Qualifications:

• Strong background as a hybrid Linux/Windows System Administrator.
• Hands-on experience with AWS cloud services (Lambda, CloudFormation, EC2, IAM, etc.).
• Proficiency with scripting and automation tools: Ansible, Terraform, PowerShell, Bash, and Python (preferred).
• Experience administering Windows environments, including Active Directory and Group Policy Management.
• Solid understanding of cloud security practices, patch management, and compliance reporting.
• Strong troubleshooting and problem-solving skills in both Linux and Windows environments.
• Ability to work independently and collaboratively in a fast-paced, mission-focused team environment.