IT Systems Administrator

System High Corporation; Arlington (VA); On-site; USD 80,000 - 110,000; Full time

Benefits offered by this job

Diversity and inclusion initiatives

Equal opportunity workplace

Military friendly employer

Job summary

System High Corporation in Arlington, Virginia, is seeking an IT Systems Administrator to maintain and support enterprise IT systems. Candidates should have a Bachelor’s degree in IT or a related field with at least three years of relevant experience, or a High School Diploma with five years of experience. Essential skills include IT systems administration and cybersecurity compliance. The role supports mission-driven operations and requires active TS/SCI clearance. System High values diversity and encourages applications from all backgrounds.

Qualifications

• Bachelor's degree in relevant field or equivalent experience.
• Experience in IT systems administration and incident response.
• Certifications like Security+ or CISSP are mandatory.

Responsibilities

• Administer and maintain IT systems, ensuring compliance and security.
• Support users with system and application issues.
• Monitor system performance and track KPIs.
• Develop standard operating procedures (SOPs) and support IT documentation.

Skills

IT systems administration

cybersecurity compliance

system troubleshooting

user support

incident response

Education

Bachelor's degree in Information Technology or related field + 3 years of experience

High School Diploma + 5 years of experience

Certification in Security+, CISSP, or equivalent

Job description

About System High

System High Corporation delivers advanced protection and secrecy solutions to secure and strengthen critical missions, programs, and intelligence activities. We support some of the nation's most sensitive efforts, and our team plays a direct role in protecting what matters most.

Position Overview

We are seeking an IT Systems Administrator to support the operation, maintenance, and security of enterprise IT systems in a mission‑driven environment. This role is responsible for ensuring systems are secure, compliant, and operating efficiently, while also supporting users, troubleshooting issues, and helping implement technical solutions. You'll work closely with internal stakeholders and enterprise IT partners to maintain system integrity and support ongoing cybersecurity and compliance efforts.

Key Responsibilities

System Administration & IT Support

• Administer and maintain IT systems, including:
  • Workstations (e.g., laptops)
  • Operating systems
  • Applications and software licenses
• Provide technical support and troubleshooting for system and user issues
• Support unclassified IT environments and virtual meeting capabilities
• Facilitate service desk requests such as:
  • Account access
  • Data transfers
  • System support requests

Cybersecurity & Compliance

• Support and maintain compliance with cybersecurity and information assurance requirements
• Participate in cybersecurity incident response activities
• Assist with compliance assessments, audits, and remediation efforts
• Support ongoing Authority to Operate (ATO) processes and documentation
• Ensure systems meet required security standards in coordination with enterprise IT and cybersecurity teams

Systems Monitoring & Performance

• Monitor system performance and track key performance indicators (KPIs)
• Maintain and update IT inventory and asset tracking systems
• Develop and maintain dashboards and reports to support oversight, compliance, and risk tracking
• Identify system gaps and recommend improvements

Process Improvement & Documentation

• Develop and maintain standard operating procedures (SOPs) for IT systems and processes
• Translate user needs into technical requirements and recommend solutions
• Support development of technical documentation and system configurations
• Assist with plans of action and milestones (POA&Ms) to address system and security gaps

Collaboration & Coordination

• Work closely with enterprise IT organizations (e.g., CIO teams) to ensure:
  • System compliance
  • Security accreditation
  • Integration with broader IT infrastructure
• Support continuous improvement of IT services and system capabilities

Qualifications

Required Qualifications

• Bachelor's degree in Information Technology, Computer Science, Cybersecurity, Computer Engineering, Information Systems, or related field + 3 years of relevant experience
• High School Diploma + 5 years of relevant experience
• Experience in IT systems administration, cybersecurity compliance, system troubleshooting and user support, incident response
• Certification in Security+, CISSP, or equivalent

Desired Qualifications

• Master's degree in a related field
• Experience supporting IT systems within Intelligence Community (IC) environments
• Familiarity with secure and regulated IT environments

Clearance Requirement

• Active TS/SCI with Full Scope Polygraph

Additional Information

• This job description is not designed to cover or contain all job duties required of the employee. There may be additional activities, duties and/or responsibilities that are required for this position that are not listed in this job description.
• In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification document form upon hire.
• System High is a Military friendly employer. Our extensive work on behalf of the U.S. government offers those who have served in uniform an opportunity to continue to serve their country in a new and exciting way while enjoying a successful civilian career.
• System High values the power and strength of diverse backgrounds on the culture and performance of our company. We strive to maintain an inclusive culture to encourage each employee to bring themselves to the mission.
• System High Corporation is committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender, gender identity or expression, veteran status, or any other characteristic protected by law. We are proud to be an equal opportunity workplace.
• If you require a reasonable accommodation to apply for a position with us, please email [e-mail].
• Know Your Rights: Workplace Discrimination is Illegal; EPPA Notice; FMLA Notice

Warning

Beware of recruitment scams: System High will never request money or personal purchases during the hiring process. Verify all communications come from a systemhigh.com or msg.paycomonline.com email address.