GitHub System Administrator
$81.5k - $138.55kICF
Join ICF’s IT Modernization Team — Where Innovation Meets ImpactOur IT Modernization division is seeking a skilled GitHub System Administrator to support enterprise software delivery and DevOps transformation initiatives. In this role, you will administer, configure, and optimize GitHub as a mission-critical platform, enabling teams to collaborate efficiently, maintain code quality, and deliver secure, scalable solutions.This position plays a key role in supporting federal or enterprise environments by ensuring GitHub is properly governed, integrated, and aligned with organizational standards for security, compliance, and performance.What You’ll Do as a Git Hub System AdministratorThe GitHub System Administrator is responsible for maintaining the health, security, and scalability of the GitHub ecosystem. This includes repository management, access control, automation, integration, and support for CI/CD workflows.Platform Administration & ConfigurationAdminister GitHub organizations, repositories, and teams.Configure repository settings, branch protection rules, and access controls.Manage user roles, permissions, and team structures following least-privilege principles.Establish and enforce governance standards for repository naming, structure, and usage.Configure GitHub Projects, Issues, Discussions, and Wikis for collaboration.Automation & Workflow ManagementDesign, implement, and maintain GitHub Actions workflows for CI/CD pipelines.Automate routine tasks such as issue triaging, labeling, and notifications.Optimize workflows for performance, scalability, and reliability.Integrate GitHub with external CI/CD tools where applicable.Integration & API ManagementConfigure and manage integrations with third-party tools (e.g., CI/CD platforms, security scanners, etc.) Manage GitHub Apps, OAuth Apps, and webhooks.Troubleshoot API-related issues and ensure secure connectivity with external systems.Maintain and rotate API tokens, secrets, and credentials securely.Security & ComplianceImplement and monitor security best practices, including branch protection rules, secret scanning, dependabot alerts, code scanning (SAST), etc.Conduct access reviews and ensure compliance with organizational and federal security requirements.Manage audit logs and support compliance reporting.Enforce policies for secure coding and repository usage.Environment & Release SupportSupport release management processes, including tagging, versioning, and release notes.Coordinate deployments across environments in collaboration with DevOps and engineering teams.Maintain consistency across development, staging, and production repositories.Support rollback strategies and incident recovery.Data & Repository ManagementOversee repository lifecycle management (creation, archival, deletion).Manage large file storage (Git LFS) and repository performance optimization.Support data migration between repositories or from other version control systems. Ensure backup and recovery strategies are in place.Troubleshooting & System SupportDiagnose and resolve issues related to repositories, permissions, workflows, and integrations.Provide Tier 2/Tier 3 support for GitHub-related incidents.Collaborate with developers and DevOps teams to resolve build and deployment issues.Support QA and testing workflows integrated with GitHub.Collaboration & Stakeholder CommunicationWork closely with developers, business analysts, DevOps engineers, and security teams.Document system configurations, workflows, and troubleshooting procedures.Provide guidance and mentorship to junior team members on GitHub best practices.Deliver training sessions and onboarding support for new GitHub users.Basic Qualifications3+ years of experience administering GitHub (Enterprise Cloud or Server).Strong understanding of Git version control concepts (branching, merging, pull requests).3+ years of hands-on experience with GitHub Actions and CI/CD workflows.3+ years of experience managing user access, permissions, and repository governance.Familiarity with REST APIs and integration troubleshooting.Ability to obtain and maintain a Public Trust clearance (for federal environments).U.S. Citizenship requiredPreferred QualificationsBachelor’s degree in Information Systems, Computer Science, or related field3+ years of experience with GitHub Enterprise administration.Knowledge of security tools integrated with GitHub (e.g., Snyk, CodeQL).Understanding of compliance frameworks (e.g., FedRAMP, NIST).3+ years of experience supporting cloud platforms (AWS, Azure, or GCP).1+ years of prior experience in federal or public sector environments.Ability to support multiple release cycles and deployment pipelines.Preferred CertificationsGitHub Certified Administrator or GitHub Actions CertificationAWS / Azure DevOps certificationsSecurity certifications (e.g., Security+, CISSP)Why Join ICFAt ICF, you’ll have the opportunity to work on impactful projects that transform how Federal agencies serve the public. We foster a collaborative, innovative environment where your ideas are valued, your growth is encouraged, and your work makes a real difference.Job Location: This position requires that the job be performed in the United States. If you accept this position, you should note that ICF does monitor employee work locations and blocks access from foreign locations/foreign IP addresses, and also prohibits personal VPN connections.Bot and Third-Party ApplicationsPlease note that this application must be submitted directly by the applicant for consideration. Failure to do so may result in the application being excluded for consideration. Applicants needing an accommodation for disability or religious purposes in connection with the application process should contact View email address on click.appcast.io for assistance.Working at ICFICF is a global advisory and technology services provider, but we’re not your typical consultants. We combine unmatched expertise with cutting-edge technology to help clients solve their most complex challenges, navigate change, and shape the future.We can only solve the world's toughest challenges by building a workplace that allows everyone to thrive. We are an equal opportunity employer. Together, our employees are empowered to share their expertise and collaborate with others to achieve personal and professional goals. For more information, please read our EEO policy.We will consider for employment qualified applicants with arrest and conviction records.Reasonable Accommodations are available, including, but not limited to, for disabled veterans, individuals with disabilities, and individuals with sincerely held religious beliefs, in all phases of the application and employment process. To request an accommodation, please email View email address on click.appcast.io and we will be happy to assist. All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodations. Read more about workplace discrimination rights or our benefit offerings which are included in the Transparency in (Benefits) Coverage Act. Candidate AI Usage PolicyAt ICF, we are committed to ensuring a fair interview process for all candidates based on their own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) tools to generate or assist with responses during interviews (whether in-person or virtual) is not permitted. This policy is in place to maintain the integrity and authenticity of the interview process. However, we understand that some candidates may require accommodation that involves the use of AI. If such an accommodation is needed, candidates are instructed to contact us in advance at View email address on click.appcast.io. We are dedicated to providing the necessary support to ensure that all candidates have an equal opportunity to succeed. Pay Range - There are multiple factors that are considered in determining final pay for a position, including, but not limited to, relevant work experience, skills, certifications and competencies that align to the specified role, geographic location, education and certifications as well as contract provisions regarding labor categories that are specific to the position. The pay range for this position based on full-time employment is:$81,499.00 - $138,549.00Nationwide Remote Office (US99)SummaryLocation: Reston, VAType: Full time
$150k - $165k
Overview Systems Administrator Herndon, VA TS/SCI with Poly At Bcore, our strength comes from how we deliver impact to the mission. Whether it... ...admin. Agile Methodology and continuous improvement mindset GitHub experience and other source control systems Strict adherence...Suggested$86.6k - $181.8k
Job Title: DevSecOps Systems AdministratorJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start... ...maintaining a critical DoD system? Join our team as a Systems Administrator! You will get to use your technical skills to implement and...SuggestedContract workWork experience placementFlexible hours- ...effective installation and performance of advanced operating system hardware and software on servers. • Install new software releases... ...projects • Thorough knowledge of good server and system administration principles Additional InformationAll your information will be...SuggestedWork experience placement
$112k - $179k
ResponsibilitiesJob Summary:We are seeking a highly skilled and experienced System Administrator to join our team. This position will require the candidate to work closely with government customers, contractor Project Lead, Information Systems Security Officer (ISSO),...SuggestedContract workFor contractorsShift work- Company DescriptionArtech Information Systems is the #12 Largest IT Staffing Company in the U.S. and an employer of choice for over 7,000 consultants. We recruit world-class talent for IT, engineering, and other professional jobs at 70+ Fortune and Global 500 companies...SuggestedFull time
- ICF Incorporated, LLC: Enterprise Atlassian Administrator- Reston, VADUTIES:Lead the architecture and administration of ICF’s Atlassian Enterprise... ...Jira integrations with other applications like ServiceNow, GitHub and Azure DevOpsProficient in third party add-on research &...Full timeContract workWork experience placementWork at officeRemote work
$73.45k - $132.78k
Leidos has an opening for a Systems Administrator in Reston Virginia. Responsibilities include installation, configuration, administration, support and maintenance of systems, including associated hardware. Responsibilities may include management of systems infrastructures...Full timeWork experience placement$99k - $225k
Hardware Systems AdministratorThe Opportunity:Your combination of people skills and system administrator expertise makes you the team hero, solving one problem after another. What... ...pipelines such as GitLab CI, Jenkins, or GitHub ActionsKnowledge of IP tables and...Full timeContract workPart timeWork at officeLocal areaRemote work$146k - $194k
...technology, and business model of the 21st century’s most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril’s family of systems is powered by Lattice OS, an AI-powered operating system that turns...Full timeWork experience placementImmediate start- ...BRPosted: 2026-07-06Location: Herndon, VirginiaClearance: TS/SCI w/Poly SPCompany: Lockheed MartinDescription:• Provide Domain/Systems Administrator Engineer of the Mission LAN, and oversee the maintenance, optimal function, and patching of the LAN’s operating system, and...Full timeFor contractorsWork at officeRemote workMonday to FridayFlexible hours
- ...insight and leadership to solve the nation's most critical national security challenges in the most demanding environments.This Systems Administrator position is located in Northern Virginia with flexible core hours.The Systems Administrator provides in-depth support and...Work at officeFlexible hours
- ...Systems Administrator ACTIVE TS/SCI CLEARANCE with FS poly REQUIRED TO BE CONSIDERED FOR THIS POSITION Maintains operation of multi-user computer systems, including coordination with network engineers. Duties may include setting up administrator and service accounts...
- ...through innovative solutions and an engaging culture. Description of Task to be Performed: AnaVation is seeking a Sr Systems Administrator to join our team and support our mission critical customer in Reston, VA. As a Sr Systems Administrator you will:...Temporary workImmediate start
- ...established in 2006 to provide computing and consulting services for government and commercial entities. Our services improve Information System networking performance and compliance and protect electronic assets from loss and compromise. We welcome your application to...Local areaImmediate start
- ...Job Description Job Description We are seeking a skilled and detail-oriented Systems Administrator to support and maintain enterprise Windows and Linux server environments in a fast-paced, mission-focused organization. This role is responsible for building, configuring...Contract work
$92k - $185k
...Description Job Description Security Clearance: Active TS/SCI with FS Polygraph required Position ~ Apogee's ideal Systems Administrator will be providing support for a comprehensive suite of applications. The necessary support & services include systems...Temporary workFlexible hoursShift work- ...country from threats. Job Description Advance how our customers operate while you advance your career. Join GDIT as a Systems Administrator SME and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you....
$103.8k - $218.1k
Job Title: Classified Systems Administrator and ISSOJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: SecretEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Continental US* * * The Opportunity CACI...Full timeContract workWork experience placementFlexible hours$146k - $194k
...companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril’s family of systems is... ....ABOUT THE JOB We're seeking a skilled Classified Systems Administrator with expertise in Linux and Microsoft environments to provide...Full timeWork experience placementImmediate start$135k - $216k
ResponsibilitiesWe are seeking a Senior Cloud Systems Administrator in Herndon, VA to support the SITE III DO contract within our National Programs Business Intelligence Systems & Applications Operating Unit. This role supports mission-critical applications and services...Full timeContract workFlexible hoursShift work$112k - $179k
ResponsibilitiesCurrently seeking a Cyber Systems Administrator to support an Intel Community (IC) customer in the Herndon, Virginia area.The Systems Administrator provides mid-level operational support for enterprise information systems within classified environments....Contract workShift work$96.12k - $182.4k
...information on remote work at Penn State, see Notice to Out of State Applicants. POSITION SPECIFICSWe are searching for a Systems Administrator to join the Reston, VA location of the Digital Engineering Department in the Cyber, Modeling, and Simulation Division of the...Full timeFor contractorsWork experience placementWork at officeImmediate startRemote work$112k - $149k
...companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril’s family of systems is... ....WHAT YOU'LL DO:The Anduril Intelligence Systems System Administrator ensures the smooth functioning of the core underpinnings of the...Full timeWork experience placementImmediate start- ...Senior Systems Administrator Securiport LLC is a U.S. company based in Reston, VA, specializing in the design and implementation of passenger biometric recognition, immigration processing, and intelligent information reporting and management systems based on advanced...Contract workLocal areaMonday to Friday
$112k - $179k
...and Virginia (DMV area)Clearance Required: TS/SCI with ability to pass a polygraphPosition OverviewPeraton is seeking a Linux Systems Administrator IV to join our team supporting a mission-critical Intelligence Community customer. In this role, you’ll be at the heart of...Contract workFor contractorsImmediate startShift work$77.6k - $176k
DevOps Engineer and System Administrator, SeniorThe Opportunity:Are you looking for an opportunity to leverage your DevOps and system administration... ...IIS4+ years of experience with CI/CD, including Jenkins, Github Actions, Nexus, or Artifactory4+ years of experience with...Full timeContract workPart timeWork at officeLocal areaRemote work$131.8k - $290k
Job Title: Network Management Systems (NMS) Linux EngineerJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start... ...deployment and updates using tools like Jenkins, GitLab CI, or GitHub Actions.Work closely with DevOps and engineering teams to...Contract workWork experience placementLocal areaFlexible hours$86k - $138k
ResponsibilitiesPeraton is seeking an entry level Systems Administrator (Shift 2) to join our national intelligence program that delivers engineering, application development, deployment, operations, upgrades and sustainment of products and services to achieve our client...Contract workShift work- ...dealing with some of the most advanced geospatial and intelligence systems in the world. You'll be exposed to, and will contribute to,... ....You will work with a dynamic team consisting of Linux Administrators, DevOps & Infrastructure Engineers, Systems Engineers to supportcomputational...Full time
$104k - $166k
Responsibilities We are seeking a Senior Linux Systems Engineer with a strong background in Linux administration and commonopen-source tools and software to join our team. This is an on-site position. Candidates must be self-starters whoenjoy working in fast-paced and...Contract workShift work
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