Network Administrator (On-Site)

Oneida Professional Services is seeking a Systems Administrator to support the Defense Information School (DINFOS) Technology & Logistics Support Services contract at Fort Meade, Maryland. This position is responsible for administering, maintaining, and securing enterprise server environments and supporting the reliable operation of DINFOS information systems.

The successful candidate will provide support for Windows and Linux/UNIX systems, perform system maintenance and patch management activities, support backup and recovery operations, and assist with infrastructure modernization efforts. This role requires strong technical troubleshooting skills and the ability to maintain secure, stable, and highly available systems in a mission-critical environment.

*This position is contingent on the award of a federal contract

Key Responsibilities

• Administer, maintain, and support Windows Server and Linux/UNIX operating environments.
• Monitor system performance, availability, and reliability to ensure uninterrupted operations.
• Install, configure, maintain, and troubleshoot server hardware, operating systems, and enterprise applications.
• Manage software updates, security patches, firmware updates, and vendor-released fixes for systems connected to the enterprise environment.
• Verify and maintain network backup systems, storage solutions, and tape library operations.
• Support disaster recovery, backup, restoration, and continuity of operations (COOP) activities.
• Develop and deploy workstation and server operating system images.
• Troubleshoot and resolve complex technical issues involving servers, operating systems, storage, and infrastructure services.
• Support network infrastructure testing, implementation, and operational activities.
• Implement and maintain approved security configuration baselines in accordance with DISA Security Technical Implementation Guides (STIGs).
• Coordinate with vendors and technical support organizations to research products and resolve technical issues.
• Research emerging technologies and provide recommendations for infrastructure improvements and modernization initiatives.
• Develop and maintain system documentation, configuration records, standard operating procedures, and technical reports.
• Ensure compliance with cybersecurity requirements, organizational policies, and industry best practices.

Required Qualifications

• Experience administering Windows Server and Linux/UNIX operating environments.
• Strong knowledge of enterprise systems administration, infrastructure support, and system lifecycle management.
• Experience supporting network infrastructure testing, implementation, and operational activities.
• Knowledge of backup technologies, disaster recovery processes, and business continuity principles.
• Experience troubleshooting and resolving complex technical issues involving servers, operating systems, and enterprise applications.
• Experience installing and maintaining software updates, security patches, and vendor releases.
• Experience implementing and maintaining DISA STIG-compliant security baselines.
• Experience developing and deploying operating system images and standardized workstation configurations.
• Strong understanding of cybersecurity principles and systems security best practices.
• Excellent analytical, troubleshooting, and problem-solving skills.
• Strong written and verbal communication skills.

Preferred Qualifications

• Bachelor’s degree in information technology, Computer Science, Information Systems, Cybersecurity, or a related technical discipline.
• Microsoft Certified, Red Hat Certified System Administrator (RHCSA), VMware, or equivalent systems administration certification.
• CompTIA Security+, Server+, Network+, or related certifications.
• Experience supporting Department of Defense, military, federal government, or educational organizations.
• Experience with virtualization technologies such as VMware or Hyper-V.
• Experience with enterprise backup solutions, storage systems, and endpoint management platforms.
• Familiarity with automation and scripting technologies such as PowerShell, Bash, or Python.
• Foundational qualification for DoD 8140 work roles including Network Operations Specialist (441) and/or System Administrator (451).

Benefits (FEDERAL):

• 15 Days of Paid Time Off
• 11 Paid Holidays
• 401(k) Retirement Plan with Company Match
• Medical, Dental, and Eye Insurance
• Employee Referral Program
• Tuition Reimbursement
• Employee Assistance Program (EAP)
• Wellness Program
• Multiple Voluntary Medical Benefits

About Us:

The Oneida ESC Group is a family of companies owned by the Oneida Nation of Wisconsin that delivers customer-focused engineering, science, and construction services worldwide.

Our family of companies includes:

• Oneida ESC Group (OESC)
• Oneida Professional Services (OPS)
• Oneida Total Integrated Enterprises (OTIE)
• Mission Support Services (MS2)
• Sustainment & Restoration Services (SRS)
• Oneida Engineering Solutions (OES)
• General Mechanical Corporation (GMC)
• LG2 Environmental Solutions (LG2)
• Oneida Environmental (OE)

We integrate our staff for dedicated, cooperative, and business-like delivery of services to enhance our customers’ missions.

Equal Employment Opportunity:

Oneida ESC Group is an equal opportunity employer committed to inclusion and diversity in the workplace. We take affirmative action to ensure equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity or expression, or any other characteristic