Reflexive Concepts is seeking a Senior System Administrator to join our team!
Join an existing team providing Life Cycle Sustainment (LCS) activities for commercial and custom-developed education, learning, and training applications. The role requires a self-motivated individual that is comfortable working in a team environment. This position will require working on a fast-paced team and a willingness to take on challenges.

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.

This role is a great fit if you:

Are excited by the idea of hitting the ground running in an environment where requirements come from different stakeholders and processes aren’t always fully defined.
Enjoy working independently while also collaborating with a team to solve challenges together.
Bring structure and clarity to complex, ambiguous situations by applying best practices and building repeatable processes.
Communicate confidently across technical and leadership levels to gather requirements, clarify needs, and deliver solutions that matter.
Stay calm under pressure, adapt quickly, and see challenges as opportunities to innovate and improve.

Qualifications:

A bachelor’s degree in a technical discipline and fifteen (15) years of system administration experience.
- Twenty (20) years of SA experience may be substituted in lieu of a degree.
DoD 8570 compliance with Information Assurance Technical (IAT) Level I is required
Proficiency with maintaining various versions of Windows Server including hardening, patching, upgrading and disk management.
Linux server experience including patching and software maintenance.
Hands on IAVA patching and reporting experience
Experience in maintaining and upgrades various types of installed software
Strong problem solving and troubleshooting of computer systems and software

Desired Skills:

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, 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.
Demonstrated success bringing order to undefined or evolving environments
Ability to work autonomously and collaboratively in mission-focused team.

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