Senior Systems Administrator - AWS Windows/Linux, Onsite VA

Linuxconfig; Virginia (MN); On-site; USD 79,000 - 160,000; Full time

Job summary

Accenture Federal Services is seeking a Senior Systems Administrator to lead the management, security, and optimization of a mixed Windows and RedHat Linux environment hosted in AWS. This onsite role in Crystal City, VA requires independent leadership and the ability to mentor junior admins.

You will implement patching, backup, DR strategies, RBAC/AD controls, and security hardening while documenting processes and aligning with DISA STIGs and compliance frameworks.

Qualifications

• 5+ years hands-on systems administration experience.
• Proficient in Linux and AWS administration.
• Experience with security control assessment and remediation.
• CompTIA Security+ (or equivalent) required.

Responsibilities

• Administer and maintain Windows and RHEL systems across AWS, including server provisioning, patching, and compliance (STIG).
• Manage backup, restore, and disaster recovery strategies and ensure infrastructure resilience.
• Oversee user and permission management (RBAC, AD, ACLs, auditing) and enforce privilege management best practices.
• Perform advanced troubleshooting, network analysis, and performance optimization within the AWS environment.
• Drive security hardening, documentation, and adherence to compliance frameworks.
• Create and maintain technical documentation and collaborate closely with Cyber Security.
• Automate operational tasks using Bash, PowerShell, and related scripting tools.

Skills

Linux administration

AWS administration

Security assessments

RBAC & AD management

Scripting (Bash, PowerShell)

Education

CompTIA Security+ or equivalent

Tools

AWS

Bash

PowerShell

Job description

Accenture Federal Services is seeking a Senior Systems Administrator to lead the management, security, and optimization of a mixed Windows and RedHat Linux environment hosted in AWS. This onsite role in Crystal City, VA requires independent leadership and the ability to mentor junior admins.

You will implement patching, backup, DR strategies, RBAC/AD controls, and security hardening while documenting processes and aligning with DISA STIGs and compliance frameworks.