System Administrator
GCI
Senior Systems AdministratorGCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data Analytics and Software Development, Engineering, Targeting and Analysis, Operations, Training, and Cyber Operations. We maximize opportunities for success by building and maintaining trusted and reliable partnerships with our customers and industry.At GCI, we solve the hard problems. As a Senior Systems Administrator, a typical day will include the following duties:Position supports both medium-sized business network and small program networks with multiple users on several different domains. Requires responsive and active management to include all system administrator duties related to servers and end user devices. Demonstrated knowledge of and experience with installing and maintaining software and hardware is essential. Must work closely with information assurance (IA) team and be skilled in scanning tools (Nessus, Rapid 7, SCAP, NMAP) and isolating and mitigating any vulnerabilities (WSUS).Implementing controls per NIST 800 series of standard publications (800-171, 800-171A, 800-53, 800-37) employing the risk management framework to include FedRAMP and Government Community Cloud.Advises senior leadership on IT procurement, and asset management, conducts research on tools that streamline business processes, and automate repeatable functions. Must work well under pressure and be capable of meeting deadlines in an environment where priorities can shift to adapt to evolving missions, goals, and objectives (Agile focus).Experience mentoring more junior administrators with possibility of providing supervisory oversight, if desired.Primary Responsibilities:Collaborate with peers, co-workers and customers by using Teams, Outlook, telephone, or any other tools available in the work environment.Provide IT customer service, create, unlock, assign permissions and roles to accounts.Conduct daily, weekly, and monthly scans on systems.Apply patches, updates and any other mitigation actions.Attend meetings with support staff, and program managers to identify priorities.Investigate and troubleshoot any IT issues.Develop and maintain system documentation.Install, modify, and repair computer hardware and software including networking gear.Support program and organizational logistics/procurement and property accountability.Perform daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled events such as backups.Maintain standalone systems (patches, virus definitions, etc.)A candidate must be a US Citizen and requires an active/current TS/SCI with Polygraph clearance.Equal Opportunity Employer / Individuals with Disabilities / Protected VeteransQualificationsSkillsRequiredSecurity+AdvancedPreferredA+AdvancedITILAdvancedNetwork+AdvancedLinuxIntermediateCCNAAdvancedBehaviorsRequiredTeam PlayerWorks well as a member of a groupDetail OrientedCapable of carrying out a given task with all details necessary to get the task done wellPreferredInnovativeConsistently introduces new ideas and demonstrates original thinkingFunctional ExpertConsidered a thought leader on a subjectMotivationsRequiredSelf-StarterInspired to perform without outside helpGoal CompletionInspired to perform well by the completion of tasksEducationPreferredBachelor of Science or better in Computer Systems Management or related field.Bachelors or better in Computer Information Systems or related field.ExperienceRequired5 years:Knowledge and experience with: Office 365/Windows 365, Windows 10, Server 2016/2019, Active directory, group policy, DNS, DHCP, windows certificates services, hyper-V and other virtualization platforms, printer support, Cisco equipment, Dell equipment, and firewalls.5 years:Network maintenance, switch, router configuration, VOIP telephony, alarm networks, door badge/access equipment.5 years:Building and maintaining servers that meet CMMC requirements, performing administrative duties and providing customer service on multiple classified and unclassified enclaves. Supported continuity of operations (COOP) and skilled in multiple system back-up tools (Veritas, Rubrik, Backup exec).Equal Opportunity Employer This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.
$62k - $141k
IT Systems AdministratorThe Opportunity:Are you looking for an opportunity to combine your technical skills with big picture thinking... ...a customer-focused engineering solution.As an IT Systems Administrator on our team, you’ll have the chance to shape the development and...SuggestedFull timeContract workPart timeWork at officeLocal areaRemote work$130k - $180k
Celestar, a B&A Company, is seeking a Database/Web System Administrator to support the Defense Advanced Research Projects Agency (DARPA) Program Security Services (PSS) task order. If interested and meet the qualifications, we encourage you to apply for this rewarding...SuggestedContract workLocal area$92.3k - $166.85k
...like an environment where you can thrive, keep reading! The MissionThe Leidos Digital Modernization Sector is seeking a GCCS-J Systems Administrator in support of the Air Force National Capital (AFNCR) IT Services program. Primary Responsibilities: Lead, mentor, and manage...SuggestedFull timeLocal areaImmediate startRemote workRelocation$62k - $141k
Tier 2 System AdministratorThe Opportunity: Your combination of people skills and system administration knowledge makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting the DoD? Your blend of...SuggestedFull timeContract workPart timeWork at officeLocal areaRemote work$62k - $141k
System Administrator, MidThe Opportunity: Your combination of people skills and system administrator expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting our client?As a System Administrator...SuggestedFull timeContract workPart timeWork at officeLocal areaRemote work$104.2k - $138.9k
...a hybrid role working on-site 3 days/week in Arlington VA area. Candidates must have a current TS/SCI clearance.The Senior System Administrator leads the administration, maintenance, security, and operational resilience of complex enterprise infrastructure supporting...Remote work3 days per week- ...IT Systems Administrator As an IT Systems Administrator, you will be responsible for the administration, configuration and support of our systems, networks and software. Responsibilities Setting up and configuring new instances of Linux and Windows servers....Work at office
- Kaiva Tech, LLC is seeking a Systems Engineer/Administrator in Arlington, VA Clearance: Secret Location: 100% Onsite Position Overview: As a Systems Engineer/Administrator, you will be responsible for ensuring the secure and efficient operation of servers and systems in...
- ...clearance with a Full Scope (FS) Polygraph. No exceptions. About System High System High Corporation delivers advanced... .... We are seeking an Information Technology (IT) Systems Administrator to join our team and support mission-critical programs through...Contract workImmediate start
- ...exploitation, operational intelligence, counter unmanned aerial systems and cyber security. TechINT Solutions Group has developed a... ...the airborne High Band System SW sensors • Provide system administration for High Band System SW components GCP and subcomponents CETS...Full timeFor contractorsWork experience placement
- ...A government services contractor in Arlington, Virginia is seeking a Relativity Sr. Systems Administrator to facilitate government innovation through IT solutions. The ideal candidate will design and maintain systems using Relativity and AWS, alongside ensuring compliance...Full timeFor contractorsFlexible hours
$110k - $145k
...Systems AdministratorBoston, MAWe have TWO openings for a Systems Administrator that can be based in one of our many office locations: Boston, MA - Charlotte, NC - Atlanta, GA - Asheville, NC - New York City, NY - Westwood, NJ - McLean, VAModera Wealth Management is an...Work at officeLocal areaRemote workRelocation$75k - $85k
...of Duty background investigation followed by DHS Public Trust Clearance Other (Travel, Work Environment, DoD 8570 Requirements, Administrative Notes, etc.) None $75,000 - $85,000 a year The offered rate will be based on the selected candidate’s knowledge, skills,...Local areaNight shiftWeekend work$155k - $180k
...Senior System AdministratorAre you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. Amentum is seeking a Senior System Administrator to join our team of passionate individuals in Springfield, VA. In this role you...Contract workLocal areaMonday to FridayShift work- ...A federal IT solutions provider is seeking a Systems Administrator III to manage and support Active Directory and cloud services, ensuring security compliance and system optimization. The ideal candidate will have over 3 years of IT experience, a BS degree in a relevant...
- ...Systems Administrator Location: Arlington, VA Chenega Military, Intelligence & Operations Support (MIOS) invites qualified professionals to join our team as a Systems Administrator. This role supports large‑scale government operations by leveraging cutting‑edge technology...
$89.2k - $147.06k
...A leading telecommunications company is seeking a Consolidated Systems Monitoring Administrator in McLean, Virginia. The successful candidate will ensure 24/7 monitoring of server and network operations, troubleshoot issues, and maintain accurate documentation. Required...- ...System AdministratorWe are seeking a proactive and detail-oriented System Administrator to join our team and help maintain the stability, security, and performance of our IT infrastructure. In this role, you will be responsible for managing servers, networks, and other...Temporary workImmediate start
$78.6k - $160.2k
...Senior Systems AdministratorAt Accenture Federal Services, nothing matters more than helping the US federal government make the nation... ...moves missions and the government forward!The Senior Systems Administrator oversees the management, security, and optimization of a mixed...Local area$70k - $110k
...Systems AdministratorWe are seeking a Systems Administrator to support the Cost Assessment Data Enterprise (CADE) office on-site at The Pentagon. The ideal candidate is a bright, energetic, customer service oriented IT professional with preferably 7-10+ years of experience...Work at office$110k - $138k
...Overview The System Administrator provides system administration for all systems and applications supported by security guidance, orders and directives, identifying and remediating vulnerabilities, implementing and testing security controls, assisting with software...Temporary workImmediate startFlexible hoursShift work$106.3k - $221.1k
...System Administrator At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people. Our 13,000+ people are united in a shared purpose to pursue the limitless potential of technology...Live inLocal area- ...Systems Administrator 3 Engineering Location: Chantilly, VA Salary: 100-150k TS/SCI clearance required Responsibilities: Troubleshoot, maintain integrity and configure components along with implementing operating systems enhancements to improve reliability...
- ...August 2025 Application Deadline: 29 August 2025 Department: Systems Engineering Location: Headquarters Description Aireon deployed... ...within the Aireon Network Engineering Group, the Senior Systems Administrator is responsible for helping to set up, maintain and manage...Permanent employmentFull timeTemporary workFor subcontractorWork at officeRemote workFlexible hours
- ...Endpoint Systems AdministratorTechnology and Computer-relatedVienna, VA • Full-Time/RegularSupports the deployment, configuration, and day-to-day administration of endpoint management platforms including Workspace One, Intune, and Jamf. This role ensures secure, reliable...Full time
- ...well-structured, effectively outlining the responsibilities, requirements, benefits, and application process for the Senior Airgap System Admin role. It uses appropriate HTML tags (p, h3, ul, li) to enhance readability and organization. However, there are minor issues...
$50k - $290k
...supports Civilian, Defense, and Intelligence Community customers across the country and around the globe. We are looking for a Systems Administrator to join our high-performing team on a dynamic, mission-focused program. In this role, you will support a comprehensive...Contract workWork experience placementShift work- ...System AdministratorImmediate need for a talented System Administrator. This is a 06+ Months Contract opportunity with long-term potential and is located in Richmond, VA/McLean, VA (Hybrid).Job ID:25-67511 Pay Range: $60 - $65/hour. Employee benefits include, but are...Contract work
$75k - $90k
...Location: Rosslyn, VA Work Schedule: Onsite 5 Days per week – Mandatory and not negotiable. Position Overview: As a Junior Systems Administrator / Tier II Helpdesk Technician, you will be a key member of our IT services contract team supporting a Federal Government Customer...Contract workWork at office- ...Senior Systems Administrator, Top Secret Security Clearance Required, Arlington, VAWe are seeking a Senior Systems Administrator to perform a wide variety of systems administration tasks. This could include installation, configuration, upgrades, and operational support...
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