Pilot In Command
leidos
Jr. System Administrator
leidos· 00100 LEIDOS, INC.
About this role
Leidos is seeking a candidate to fill a Junior System Administration position supporting DISA's GSM-O contract at Scott AFB, IL. The System Administrator is responsible for protecting DISA’s information and information systems from unauthorized access, use, disclosure, disruption, modification, perusal, inspection, recording and destruction.
PRIMARY RESPONSIBILITIES:
The candidate must be able to work independently to maintain the smooth operation of a multi-user computer systems, including coordination with customer and other administrators.
Communicate policies and procedures to customers
Update digital systems to provide insight to ongoing efforts and tickets
Monitor alarm systems
Perform basic level system administrator duties.
Interacts with users and evaluates vendor products.
Creates, maintains, and implements detailed documentation and maintains standard operating procedures.
Provides support on a M-F business hours schedule, also responsible for on-call, extended hour, and weekend support as required by mission or emergency situations.
System monitoring using installed tools as well as external tools.
BASIC QUALIFICATIONS:
BA Degree and less than 2 years of experience. Experience may be accepted in lieu of degree.
1 year of experience in customer service environment
Must hold an active SECRET security clearance prior to start.
Complete DoD 8750 certification e.g. Security+ within 6 months of start date.
Basic Understanding of Scripting Languages
PREFERRED QUALIFICATIONS:
Additional training, education, or certification in IT related programs
Experience with a ticketing system
Experience working with virtual environments.
GSMO
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
Original Posting:
September 24, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
Pay Range $50,700.00 - $91,650.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Frequently Asked Questions
What is the salary for the Jr. System Administrator role at leidos?
The listed salary for this Jr. System Administrator position at leidos is USD 51K–92K. This is an Full time role.
Where is the Jr. System Administrator position at leidos located?
This Jr. System Administrator role at leidos is based in O'Fallon, IL. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Jr. System Administrator role at leidos full-time or part-time?
This is listed as a Full time position. It is posted as a Jr. System Administrator role in the 00100 LEIDOS, INC. department at leidos.
Which team or department does the Jr. System Administrator at leidos belong to?
This Jr. System Administrator position is part of the 00100 LEIDOS, INC. department at leidos. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Jr. System Administrator position at leidos?
Click the "Apply Now" button on this page. You will be redirected to leidos's official application portal hosted on workday where you can submit your application directly.
When was the Jr. System Administrator job at leidos posted?
This Jr. System Administrator position at leidos was posted on Sep 24, 2026. Apply as soon as possible — early applications are often reviewed first.
Jr. System Administrator
leidos · 💰 USD 51K–92K
You'll be redirected to leidos's official application page on Workday.