Sys Admin Windows/UNIX (RHEL)

We are seeking an experienced Windows / UNIX System Administrator to support a large-scale ERP modernization initiative within a highly regulated federal environment. This role is responsible for the administration, maintenance, and optimization of enterprise server infrastructure across Windows Server and Linux/UNIX platforms, with a strong focus on Red Hat Enterprise Linux (RHEL).

This position plays a key role in ensuring system stability, security, and performance, supporting mission-critical applications hosted across on-premises and cloud environments.

This is a 75% remote position with approximately 25% quarterly travel to the Washington, DC metro area.

Per our Federal Government Contract, candidates must be U.S. Citizens with an Active Secret Clearance .

Responsibilities

• Install, configure, maintain, and support Windows Server and RHEL/Linux operating systems across physical, virtual, and cloud environments
• Troubleshoot complex system issues, performance bottlenecks, and outages, providing timely resolution and escalation when needed
• Manage system patching, security hardening, and vulnerability remediation to ensure compliance with security standards
• Collaborate with network, database, and application teams to support integrated system operations
• Develop and maintain automation scripts (e.g., PowerShell, Bash) to improve operational efficiency and reduce manual effort
• Monitor system performance, capacity, and availability, proactively identifying and addressing potential issues
• Support backup, restore, and disaster recovery processes, including validation and testing activities
• Participate in change management processes, including maintenance planning and communication of system impacts
• Maintain technical documentation, including system configurations and operational procedures
• Provide guidance and support to junior administrators and serve as a technical escalation point
• Stay current with evolving technologies, including virtualization and cloud platforms, to support continuous improvement initiatives

Qualifications

• U.S. Citizenship required with an Active Secret Clearance or higher
• 5+ years of experience in system administration across Windows Server and Linux/UNIX environments, with strong expertise in RHEL
• Demonstrated ability to manage and support complex enterprise server environments
• Strong knowledge of system administration best practices, including patching, security, monitoring, and disaster recovery
• Proficiency in scripting and automation using PowerShell and Bash/Shell
• Experience with virtualization technologies (e.g., VMware, Hyper-V) and familiarity with cloud platforms (e.g., AWS, Azure)
• Understanding of containerization technologies such as Docker and/or Kubernetes is a plus
• Strong troubleshooting, analytical, and problem-solving skills
• Excellent communication and collaboration skills
• Experience in a federal or highly regulated environment preferred
• Familiarity with security principles, including least-privilege access, is a plus
• Bachelor's degree or equivalent experience preferred

Job Requirements

• W2 Hourly rate starts at $74.65. Pay rates are based on experience and qualifications, and are subject to change at any time.
• Benefits vary by compensation type and may include paid time off (PTO), medical, dental, and vision coverage, life insurance, long-term disability insurance, a 401(k) plan, and additional optional benefits.

4 Reasons to Join The Squires Group, Inc.:
1. Our Commitment to You - We offer competitive pay, multi-year projects, and a list of exciting clients.
2. Work-Life Balance - We work hard; we work smart and have quality time for family and "life."
3. Golden Rule - We treat our consultants the way we want to be treated: with integrity, professionalism, and trust.
4. We Care About You - We help you meet your career goals and continuously support your efforts in the field.

Check out our Referral Program!
The Squires Group will pay you for every qualified professional that you refer and we place. If you see a position posted by The Squires Group and know the perfect person for the job, please send us your referral. For more information, go to https://bit.ly/squiresreferral .

The Squires Group, Inc. is an Equal Opportunity/Affirmative Action Employer.

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