Leidos' Corporate Information Security Office, reporting through our Digital Modernization sector, is seeking a System Administrator to support various classified environments. You will be responsible for maintaining, securing, and supporting complex classified information systems, as well as ensuring compliance with security protocols and regulations.
Location: Full Time, onsite at our Beavercreek, OH office.
Clearance: You must be a U.S .Citizen with a current DoD Secret clearance and eligibility to be cleared for Special Access Programs (SAP)
What will you do in this role?
This role includes a combination of duties to protect information, and maintain security controls, for an entire system, site, or program to reduce risk.
Ensure programs maintain favorable standings with government regulations and maintain compliance artifacts such as vulnerability scans, STIGs, SCAP scans, and documentation.
Install, configure, and sustain a mixture of Windows and RedHat-based systems.
Work under guidance of the Sr. ISSE to accomplish time-sensitive projects such as infrastructure buildouts, complex software installations, customer and sub-contractor coordination, and end-user outreach.
Other duties as assigned.
Basic Qualifications
Bachelor’s degree with 2-4 years of experience or equivalent relevant industry-standard certifications and experience.
Must be a U.S. Citizen with a current Active Secret security clearance to be considered along with sustained ability to be cleared to Special Access Programs and ability to obtain Top Secret security clearance.
Must have a DoD 8570 IAT level II or higher certification such as CompTIA Security+.
Experience operating in a Windows-based domain environment to include management of workstations, Active Directory, and DNS.
Familiarity navigating a Windows-based operating system to include knowledge of: TCP/IP, software installations, running predefined scripts, accessing SMB shares, remote system management, NTFS permissions, and common administration tools.
Basic knowledge of Linux-based distributions and willingness to complete full RHCSA training within a year.
Knowledge of change management procedures, roles, and responsibilities.
Experience with the Risk Management Framework (RMF) and maintaining compliance artifacts such as SCAP scans, STIGs, and Nessus Vulnerability reports.
Preferred Qualifications
RedHat Certified System Administrator (RHCSA) certification.
Cisco Certified Network Administrator (CCNA) certification.
Experience working with virtual environments
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:
December 4, 2025For 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 $67,600.00 - $122,200.00The 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.
System Administrator • Beavercreek, OH
Purchasing And Government Property Administrator.Aptima is a technological leader in the national security industry.Our mission is to drive the future of national security by engineering scalable s... Show more
The Shift Leader is responsible and accountable for all Restaurant activities while on duty.The Shift Leader will work with the Restaurant Management Team to ensure all activities are consistent w... Show more
For this position, pay will be variable by location.Our Winning Family Starts With You! .Check out these great benefits!.Flexible schedules to help you balance other life commitments (school, child... Show more
As a Physical Therapist you will be called to care when you’re needed most.As part of Interim HealthCare, you’ll support a full range of patient services to bring comfort and dignity to our clients... Show more
As a Fricker’s kitchen team member you will get to work in a fun, fast-paced environment.Whether you’re saucing wings, grilling ribs, or prepping food for a busy weekend, your skills are critical i... Show more
The Team Member is responsible and accountable for performing specific tasks and duties assigned within the Restaurant including Guest Service, Food Prep, Restaurant Cleanliness and Teamwork.The T... Show more
Location: The Ashford of Beavercreek.Make a Difference—And Own Your Future .At Wallick Senior Living, our team understands that senior living is not just a job, but a calling.We take pride in carin... Show more
At LifeStance Health, we strive to help individuals, families, and communities with their behavioral health needs.But we make it happen with the best team in behavioral health.Thank you for taking ... Show more
We are urgently seeking people interested in taking market research studies for well known brands.If you are a self-starter, looking for flexible hours throughout the week, this may be for you! Ear... Show more
We're building a world of health around every individual shaping a more connected, convenient and compassionate health experience.At CVS Health, you'll be surrounded by passionate colleagues who c... Show more
DataAnnotation is committed to creating high-quality AI.Enjoy the flexibility of remote work and the freedom to set your own schedule.This is an opportunity to work with us as an independent contra... Show more
Want to make extra money on YOUR schedule? Join our exclusive list of research study participants and .Perfect for anyone seeking remote, part-time, or temporary work, these opportunities require .... Show more
Make a Difference—And Own Your Future.At Wallick Senior Living, our team understands that senior living is not just a job, but a.We take pride in caring for and empowering our residents as they cho... Show more
The selected candidate will support installation, configuration, maintenance, troubleshooting, and sustainment of IT systems, hardware, software, and networked environments supporting mission-criti... Show more
DataAnnotation is committed to creating high-quality AI.Enjoy the flexibility of remote work and the freedom to set your own schedule.This is an opportunity to work with us as an independent contra... Show more
As a Fricker’s kitchen team member you will get to work in a fun, fast-paced environment.Whether you’re saucing wings, grilling ribs, or prepping food for a busy weekend, your skills are critical i... Show more
As a Fricker’s kitchen team member you will get to work in a fun, fast-paced environment.Whether you’re saucing wings, grilling ribs, or prepping food for a busy weekend, your skills are critical i... Show more
Data Entry Specialist (Remote).We're looking for a detail-oriented Data Entry Specialist to join our team from home.In this role, you'll be responsible for accurately inputting, updating, and maint... Show more
Excellent opportunity to join a leading, national credit card processing company that has over a decade of industry experience.Slice Merchant Services offers innovative payment processing solutions... Show more
Seeking participants for Focus Group and market research studies.Work part-time from home and earn up to $750 per week.Register to see if you are eligible.Administrative Assistant admin experience ... Show more
