SYSTEM ADMINISTRATOR

Washington, DC, DC
Full Time
Mid Level


 

SYSTEM ADMINISTRATOR

Full-Time  |  On-Site  |  Washington, D.C. Metro Area

Active Top Secret (TS) clearance required  |  Start date: September 28, 2026

POSITION SUMMARY

 

Position Title

System Administrator

Security Clearance

Must have Top Secret (TS) clearance and the ability to obtain SCI

Location

On-site — Washington, D.C. metro area (occasional domestic travel possible)

Employment Type

Full-time, direct hire with M&S Consulting, LLC

Start Date

September 28, 2026

ABOUT THE ROLE

M&S Consulting is seeking an experienced System Administrator to own the build-out, security, and day-to-day operation of stand-alone, air-gapped development and integration networks. You will rack and configure hardware, stand up core network services, administer Linux and Windows servers, manage patching and vulnerability remediation, and keep the environment fully documented and compliant. This is a hands-on role for someone who is comfortable being the go-to administrator for a classified, no-internet environment and who works well alongside data engineers and stakeholders.

This is a direct-hire, long-term position. M&S Consulting is a Women-Owned, HUBZone-certified small business headquartered in Morgantown, West Virginia.

WHAT YOU'LL DO

•  Maintain and administer computer networks and related computing environments, including hardware, systems software, applications software, and all configurations.

•  Configure and set up stand-alone development and integration networks with no internet access.

•  Install hardware in racks and configure core network services such as DNS, NTP, DHCP, and related protocols.

•  Install and configure web services and Java application servers.

•  Perform system installation, configuration, and maintenance of server hardware, software, and stand-alone networks.

•  Diagnose, troubleshoot, and resolve hardware, software, network, and system problems; replace defective components as needed.

•  Regularly and promptly apply operating system, hardware, software, and security updates and patches.

•  Conduct regular vulnerability assessments and security audits in coordination with program leadership and information-system security staff, and support required system documentation.

•  Ensure network security and configuration and maintain compliance with applicable security regulations, requirements, and controls.

•  Perform and maintain system backups; assist with contingency planning and disaster-recovery strategies.

•  Configure and deploy virtual machines based on project needs.

•  Serve as backup for configuration of user accounts, permissions, and security controls.

•  Document system setup; maintain ticketing and wiki systems; manage network, maintenance, and repair logs; analyze system metrics.

•  Recommend improvements to system and network configurations and identify related hardware or software requirements.

•  Coordinate with stakeholders and communicate system changes clearly.

REQUIRED QUALIFICATIONS

•  Clearance: Must have Top Secret (TS) clearance and the ability to obtain SCI.

•  At least 5 years of experience in a System Administration role.

•  Ability to configure and set up air-gapped networks with no internet access.

•  Knowledge of managed network appliances, switches, routers, firewalls, and time code systems.

•  Ability to manage startup scripts and other automated systems within the Linux operating system platform.

•  Experience writing shell scripts and modifying existing shell scripts.

•  Understanding of RAID and other redundancy techniques.

•  Must excel in a collaborative, team environment.

PREFERRED QUALIFICATIONS

•  Experience administering both Linux and Windows servers in a classified or stand-alone environment.

•  Familiarity with STIG compliance, vulnerability scanning tools (e.g., Nessus), and system authorization (ATO) processes.

•  Hands-on experience with enterprise network hardware (e.g., Cisco, Juniper) and virtualization platforms (e.g., VMware, Proxmox, KVM).

•  Experience with web/application server stacks (Apache, Nginx, Tomcat, or similar).

•  Relevant certifications such as Security+, RHCSA/RHCE, CCNA, or Linux+.

•  Prior experience in a cleared environment.

WHY M&S CONSULTING

•  Direct-hire, long-term stability.

•  Small-company culture with direct access to leadership and real ownership of your work.

•  Competitive salary and a comprehensive benefits package, including health coverage, retirement plan, and paid time off.

•  Meaningful work in a cleared environment.

HOW TO APPLY

Send your résumé to [email protected] with the subject line "System Administrator — DC." Please indicate your current clearance level and investigation date. Qualified candidates will be contacted promptly.

 

M&S Consulting, LLC is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status. U.S. citizenship and an active security clearance are required for this position.

 

Share

Apply for this position

Required*
We've received your resume. Click here to update it.
Attach resume or Paste resume
Attach resume as .pdf, .doc, .docx, .odt, .txt, or .rtf (limit 5MB) or Paste resume

Paste your resume here or Attach resume file

To comply with government Equal Employment Opportunity and/or Affirmative Action reporting regulations, we are requesting (but NOT requiring) that you enter this personal data. This information will not be used in connection with any employment decisions, and will be used solely as permitted by state and federal law. Your voluntary cooperation would be appreciated. Learn more.
Invitation for Job Applicants to Self-Identify as a U.S. Veteran
  • A “disabled veteran” is one of the following:
    • a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or
    • a person who was discharged or released from active duty because of a service-connected disability.
  • A “recently separated veteran” means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.
  • An “active duty wartime or campaign badge veteran” means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.
  • An “Armed forces service medal veteran” means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.
Veteran status


Voluntary Self-Identification of Disability
Voluntary Self-Identification of Disability Form CC-305
OMB Control Number 1250-0005
Expires 07/31/2029
Why are you being asked to complete this form?

We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years.

Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at www.dol.gov/ofccp.

How do you know if you have a disability?

A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability. Disabilities include, but are not limited to:

  • Alcohol or other substance use disorder (not currently using drugs illegally)
  • Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS
  • Blind or low vision
  • Cancer (past or present)
  • Cardiovascular or heart disease
  • Celiac disease
  • Cerebral palsy
  • Deaf or serious difficulty hearing
  • Diabetes
  • Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders
  • Epilepsy or other seizure disorder
  • Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome
  • Intellectual or developmental disability
  • Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD
  • Missing limbs or partially missing limbs
  • Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports
  • Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS)
  • Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities
  • Partial or complete paralysis (any cause)
  • Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema
  • Short stature (dwarfism)
  • Traumatic brain injury
Please check one of the boxes below:

PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.

You must enter your name and date
Human Check*