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Harmonia Holdings Group, LLC.

SME Systems Administrator

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What they do

A Systems Administrator manages the day-to-day operations of an organization's computer networks, including the systems that connect computers and other technology to each other and to outside networks. Installs, organizes, and supports the hardware and software of these systems.

$107,727 / year median in Virginia

-16% projected decline

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Job Description

Back to jobs tags.new SME Systems Administrator Lorton, Virginia, United States Apply Revolutional delivers advanced technology solutions and mission support to federal agencies across civilian, health, and national security environments. We apply modern capabilities, including AI/ML, cloud, cybersecurity, and IT modernization to solve complex challenges, enable faster and more secure operations, and drive measurable mission outcomes. We are redefining how federal technology gets built and delivered by operating with a product mindset, prioritizing speed, ownership, and execution over bureaucracy.
Title:
SME Systems Administrator Location:
Lorton, VA (22079)
Citizenship:
U.S. Citizen (required for access to DHS IT systems)
Clearance:
Must be able to obtain and maintain DHS Public Trust.
Schedule:
Full-time; 8-hour workdays with on-call support as needed.
Hybrid Work:
Lorton, VA roles may telework up to 2 days per week; 3 days onsite required (subject to mission needs)
Travel:
Occasional CONUS travel; local travel within 50 miles is not reimbursable
Salary Range:
$125-145k DOE Role Overview Revolutional is seeking an experienced SME Systems Administrator to support Department of Homeland Security (DHS). This role provides advanced technical leadership and mission-critical support for secure law-enforcement systems operating 24/7 across multiple locations. The Systems Administrator will manage and troubleshoot enterprise networks, servers, virtual environments, and security configurations while collaborating on the design and maintenance of the Continuity of Operations (COOP) site in Scottsdale, AZ. A shared responsibility among Harmonia, the government, and vendor partners. This position supports DHS's mission while contributing to Revolutional's overarching goals: delivering premier technology services, driving mission-focused innovation, sustaining organizational excellence, and being an employer of choice for skilled professionals. Responsibilities Install, configure, administer, and maintain LAN/WAN infrastructure, servers, SANs, and network devices. Administer Active Directory (AD) , including:
  • Promoting/demoting domain controllers
  • Troubleshooting DNS and DHCP issues
  • Managing GPO hierarchy and execution
  • Writing and maintaining PowerShell/Bash scripts for automation
  • Analyzing event logs and Windows system errors Plan, deploy, and maintain COOP and DR capabilities in coordination with the Government and vendor partners, ensuring redundancy and failover readiness.
Patch and update servers and workstations; ensure security baseline compliance with DHS and FISMA standards. Apply and troubleshoot security hardening requirements and vulnerability remediation; support the ATO process and collaborate with the ISSO to resolve findings. Administer virtualization and storage platforms, including:
  • VMware ESXi/vCenter
  • patching, updates, capacity planning, troubleshooting
  • Nutanix
  • cluster management and maintenance
  • NetApp
  • SAN/NAS configuration and data management Assist with Palo Alto firewall deployment and rule migration (from Cisco
ASA 5506
) to support network segmentation and high availability. Configure and troubleshoot Cisco and Dell switches; support VPN tunnels and IP transition projects (copper to fiber). Support lab environment setup and testing for patch validation and COOP simulation. Perform hardware replacement (hard drives, memory modules, power supplies, etc.). Maintain technical documentation, diagrams, and SOPs in CALEA repositories. Liaise with Revolutional and DHS technical leads to coordinate troubleshooting and mission support. Required Qualifications Bachelor's degree in IT, Engineering, or related field OR +5 years equivalent experience. 10+ years enterprise IT systems/network administration experience.
Proficiency in:
  • Active Directory, DNS, DHCP, and GPO management
  • PowerShell or Bash scripting for automation and administration
  • VMware, Nutanix, and NetApp administration
  • Windows Server and Linux system management
  • Server/workstation patching and security remediation
  • Security standards, ATO processes, and coordination with ISSO
  • Cisco/Dell network devices and Palo Alto firewalls Excellent communication skills with both technical and non-technical stakeholders.
Ability to work independently in high-pressure, mission-critical environments. Preferred Qualifications Experience supporting federal law enforcement IT systems or DHS-related operations. Hands-on experience assisting with the design or deployment of COOP/DR sites . Knowledge of Palo Alto firewall configuration and migration . Familiarity with Kubernetes or containerized applications (e.g., JSI platforms). Experience with static routing, VPN tunnels, and multi-site network resiliency . Familiarity with lab testing and replication validation processes. Prior experience supporting high-availability, 24/7 mission operations.
Preferred Certifications:
  • Microsoft Certified Solutions Associate (MCSA)
  • Microsoft Certified Systems Engineer (MCSE + Security)
  • CompTIA Security+ (active certification preferred)
  • PMP (Project Management Professional) Soft Skills Analytical and detail-oriented with strong initiative.
Adaptability to changing mission needs and operational tempo. Collaborative approach with vendors (JSI, Palo Alto) and government teams. Physical Demands / Work Environment Must regularly lift/move up to 50 lbs.; occasionally up to 80 lbs. with hand truck/lift cart. Requires standing, kneeling, crouching, and crawling in server rooms. Normal hearing/vision required; moderate server-room noise #DICE #LinkedIn ___________________________________________________________________________________________________________ Here at Revolutional we are pleased to have been repeatedly recognized for our outstanding work culture, the innovative work we do, and the employees on our team who make a difference each day.
Some of these recognitions include:
Recognized as a Top 20 "Best Place to Work in Virginia" Recipient of Department of Labor's HireVets Gold Medallion Great Place to Work Certification for five years running A Virginia Chamber of Commerce Fantastic 50 company A Northern Virginia Technology Council Tech 100 company Inc. 5000 list of fastest growing companies for eleven years Two-time
SBA SBIR
Tibbett's Award winner Virginia Values Veterans (V3) Certification We recognize that every bit of our success is the result of our teams of hard-working, motivated, and innovative professionals who are proud to call themselves part of the Revolutional family! In addition to competitive compensation, a family-focused culture, and a dynamic, productive work environment, we offer all full-time employees a variety of benefits including, but not limited to Traditional and HSA
  • eligible medical insurance plans 100% employer-paid dental and vision insurance options 100% employer-sponsored STD, LTD, and life insurance 5% 401(k) company matching Flexible-schedules and teleworking options Paid holidays and PTO Accrual Plans Paid Parental Leave Professional development and career growth opportunities Team and company-wide events, recognition, and appreciation
  • and so much more!
Check out our Revolutional | LinkedIn to find out a little more about who we are and if we are the right next step for your career! Revolutional is an Equal Opportunity Employer providing equal employment opportunity to all employees and applicants for employment without regard to race, color, religion, national origin, age, gender, gender identity, sexual orientation, disability, or genetics. Revolutional does and will take affirmative action to employ and advance in employment individuals with disabilities and protected veterans. To perform the above job successfully, an individual must possess the knowledge, skills, and abilities listed; meet the education and work experience required; and must be able to perform each essential duty and responsibility satisfactorily. Other duties in addition to those listed may be assigned as necessary to meet business needs. Reasonable accommodation will be made to enable an applicant with a disability to successfully apply for and/or perform the essential duties of the job. If you are in need of an accommodation, please contact HR@revolutional.com . Apply for this job
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  • Locate me Resume/CV Attach Attach Dropbox Enter manually Enter manually Accepted file types: pdf, doc, docx, txt, rtf Cover Letter Attach Attach Dropbox Enter manually Enter manually Accepted file types: pdf, doc, docx, txt, rtf LinkedIn Profile Website Are you authorized to work for any employer in the United States?
  • Select... Will you at any time require sponsorship from Revolutional to obtain or extend your authorization to work in the United States?
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  • Are you related to anyone that works for Revolutional?
  • Select... If you are related to a current employee at Revolutional, please provide the name of the employee and your relation to them. Were you referred by a current employee of Revolutional?
  • Select... If you were referred by a current employee of Revolutional, please provide the person's name who referred you. What are your salary expectations?
  • $0•$50,000 $50,000•$65,000 $65,000•$80,000 $80,000•$100,000 $100,000•$120,000 $120,000•$140,000 $140,000•$160,000 $160,000•$180,000 $180,000•$200,000 $200,000+ What is your highest level of active security clearance obtained?
No active clearance Public Trust Secret Top Secret Top Secret / SCI Poly Do you have 10+ years of experience in systems/network engineering?
  • Select... Are you willing to work onsite at the customer location in Lorton, VA 3 days a week?
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.. Voluntary Self-Identification For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file. As set forth in Revolutional, LLC's Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law. Gender Select... Are you Hispanic/Latino? Select... Race & Ethnicity Definitions If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measure the effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categories is as follows: 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 Select... Voluntary Self-Identification of Disability Form CC-305 Page 1 of 1 OMB Control Number 1250-0005 Expires 04/30/2026 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.