System Administrator II

Seneca Resources; Suffolk (VA); On-site; USD 70,000 - 100,000; Full time

Job summary

Seneca Resources in the United States is seeking a Systems Administrator II to support a Joint Training DevSecOps pipeline, core infrastructure, and data center in an onsite government IT environment.

This role requires an active Secret clearance, IAT Level II certification, experience with Windows and Linux servers, databases (SQL/Oracle/MySQL), and robust infrastructure support skills. You’ll work 100% onsite in Suffolk, Virginia.

Qualifications

• Active Secret security clearance required.
• IAT Level II certification (e.g., CySA+, Security+, CCNA–Security, GICSP, GSEC, SSCP).
• Experience installing, configuring, administering, and troubleshooting Windows and Linux servers.
• Working knowledge of at least one relational database platform such as SQL, Oracle, or MySQL.
• Bachelor’s degree in CS/IT/IS or related discipline; or five years of equivalent professional experience.
• Strong troubleshooting, systems administration, server management, database administration, backup and recovery, and infrastructure support skills.
• Ability to work 100% onsite in Suffolk, Virginia.

Responsibilities

• Install, configure, maintain, and troubleshoot Windows and Linux servers, databases, and software applications.
• Monitor server, network, systems, and data center operations for reliability.
• Troubleshoot system, hardware, software, and connectivity issues.
• Install and configure hardware and software as needed.
• Perform system backups, database administration, file recovery, and related data management.
• Optimize system performance, resource utilization, and reliability.
• Test and analyze system elements including networks and power systems.
• Support database environments such as SQL, Oracle, or MySQL.
• Provide technical assistance and responsive support to end users.
• Contribute to mission-critical DoD and federal IT infrastructure initiatives.

Skills

Windows Server

Linux

Cybersecurity

Onsite support

Database administration

Education

Bachelor’s degree or 5 years experience

Tools

SQL

Oracle

MySQL

Job description

Seneca Resources is seeking a Systems Administrator II to support a Joint Training DevSecOps pipeline, core infrastructure, and data center in an onsite government IT environment. This role is ideal for a systems administration professional with strong Windows/Linux server, database, cybersecurity, and infrastructure support experience.

The Systems Administrator II will:

• Install, configure, maintain, and troubleshoot Windows and Linux servers, desktop operating systems, databases, and software applications.
• Monitor server, network, systems, and data center operations to support reliable performance and high-quality network transmission.
• Troubleshoot system, hardware, software, communications, and connectivity issues.
• Install and configure hardware and software as needed.
• Perform system backups, database administration, file recovery, and related data management activities.
• Optimize system performance, resource utilization, capacity, and operational reliability.
• Conduct testing and analysis of system elements, including communication networks, hardware, software, power systems, modems, terminals, and related infrastructure.
• Support database environments such as SQL, Oracle, or MySQL.
• Provide technical assistance and responsive support to end users.
• Contribute to mission-critical Department of Defense and federal IT infrastructure initiatives.

Top Requirements:

• Active Secret security clearance.
• IAT Level II certification, with one of the following:
• CompTIA CySA+
• CompTIA Security+
• CCNA–Security
• GICSP
• GSEC
• SSCP
• Experience installing, configuring, administering, and troubleshooting Windows and Linux servers.
• Working knowledge of at least one relational database platform, such as SQL, Oracle, or MySQL.
• Bachelor’s degree in Computer Science, Information Technology, Information Systems, or a related discipline; or five years of equivalent professional experience.
• Strong troubleshooting, systems administration, server management, database administration, backup and recovery, and infrastructure support skills.
• Ability to work 100% onsite in Suffolk, Virginia.

Preferred Qualifications:

• Red Hat Certified System Administrator (RHCSA) certification.
• Red Hat Certified Data Center Specialist (RHCDS) certification.
• Department of Defense or federal government IT experience.
• Experience supporting DevSecOps, cybersecurity, network engineering, or mission-critical infrastructure environments.

About Seneca Resources:

At Seneca Resources, we are more than just a staffing and consulting firm, we are a trusted career partner. With offices across the U.S. and clients ranging from Fortune 500 companies to government organizations, we provide opportunities that help professionals grow their careers while making an impact. When you work with Seneca, you’re choosing a company that invests in your success, celebrates your achievements, and connects you to meaningful work with leading organizations nationwide. We take the time to understand your goals and match you with roles that align with your skills and career path. Our consultants and contractors enjoy competitive pay, comprehensive health, dental, and vision coverage, 401(k) retirement plans, and the support of a dedicated team who will advocate for you every step of the way.

Seneca Resources is proud to be an Equal Opportunity Employer, committed to fostering a diverse and inclusive workplace where all qualified individuals are encouraged to apply.