Senior System Administrator

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.