891 Junior System Administrator jobs in Arlington,VA

System Administrator

Maximus

Fort Meade, MD 20755

Active **TS/SCI clearance**
Ability to report **on‑site** in **Fort Meade, MD** up to five days per week, based on customer requirements
**IAT Level II certification** (DoD 8570/8140 compliant)
**At least 10 years of IT systems administration experience** supporting **Microsoft and Linux** platforms
**Hands‑on experience administering AWS GovCloud environments** , including:
System maintenance activities such as **patching, STIG implementation, upgrades, and vulnerability remediation**
Supporting **DoD security, compliance, and authorization (RMF/ATO)** requirements
Demonstrated experience administering, securing, and operating cloud‑based systems in **AWS** environments supporting mission‑critical workloads

Leidos

Springfield, VA 22151

Guidehouse Careers

Arlington, VA 22204

Adecco

Washington, DC 20011

Starting at $20/hr
Location: On-site (No remote)
25 hours/week (5 hours per weekday)
Office Administration Temp
First point of contact—greet visitors and manage incoming calls
Handle communications (email, mail, shipping, deliveries)
Act as liaison with vendors for office supplies and services
Maintain organized filing and resource systems
Support bank deposits and general office operations
Manage CEO expense reporting and credit card reconciliation
Coordinate calendar scheduling, meetings, and travel for executive leadership
Spanish fluency is a plus (not required)
On-site role (must be able to commute)
Mix of sitting, standing, and light lifting (under 25 lbs)
Business-appropriate attire required
The Company will consider qualified applicants with arrest and conviction records in accordance with federal, state, and local laws and/or security clearance requirements

Edward Jones

Bowie, MD 20721

McCarthy Services

Woodbridge, VA 22195

Valid driver's license with clean driving record
Must pass background check and drug screening
Ability to access **attics on hot days and crawlspaces in cold or wet conditions** to inspect existing equipment