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167 system admin jobs at 95 companies in Washington, DC

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Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
1mo
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Tier 3 System Admin Lead
Washington, District of Columbia, United States
OnsiteFull Time
DMI
DMI: Provides end-to-end digital transformation and managed IT services.
Senior Tier 3 systems administrator; on-prem, virtual, and cloud servers; AWS, AD, storage; incident response; 24x7 support; security coordination.
Linux, Windows Server, Active Directory, AWS (EC2, S3, Route 53, VPC, Lambda, CloudWatch), PowerScale, Cohesity, Shell scripting
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2mo
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Sr. System Admin/System Engineer - Linux
Annapolis Junction, Maryland, United States
OnsiteFull Time
CDIT
CDIT: Provides IT, software development, and cybersecurity for government agencies.
10+ YOE10+ years Linux system administration in IC environment; CentOS/RHEL; JBoss/Wildfly; VMware; Security+; RH Ansible desired.
Linux, CentOS, RHEL, JBoss/Wildfly, VMware, Ansible, Security+, JSON, Oracle Database, Python, Shell
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1w
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Desktop System Admin
Dulles, Virginia, United States
$76k-$144k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
2+ YOEHands-on Windows 11 administration, endpoint management (Intune/SCCM), Active Directory, PowerShell automation, TS/SCI with poly required, ability to lift 50 lbs, minimum 2 years relevant experience.
Windows 11, Active Directory, Microsoft Intune, SCCM, Windows Update for Business, PowerShell
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3mo
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Modeling & Simulations System Admin
Quantico, Virginia, United States
OnsiteFull Time
Obsidian Solutions Group: Delivers technology-enabled and mission-oriented solutions to government agencies.
2+ YOEIAT II, Windows and Red Hat system administration, server and network issue resolution, backups, DoD 8140.01 IAT II and SEC+.
Windows, Red Hat, RHCSA, DoD 8140.01 IAT II, SEC+, TCP/IP, RESTful, SOAP, HTTP
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5d
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System Administrator
Laurel, Maryland, United States
$128k-$214k/yr OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
15+ YOETS/SCI w/ Poly required; 15+ years system administration experience; CompTIA SEC+ or CISSP; bachelor’s in technical discipline (or 5yrs admin per yr substitution); experience with Linux, Windows, PKI, DISA STIGs, and security tooling.
RHEL9, Talos, Terraform, Packer, SALT, Ansible, RHEL Satellite, Jumphost, Trellix Endpoint Security, Nessus Security Center, UAM, rsyslog, auditd, VMware vSphere vCenter, vSphere API, Amazon AWS EC2, Docker, Kubernetes, Gitlab, Python, PowerShell, Bash
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2w
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SPOK System Engineer
Bethesda, Maryland, United States
$84k-$114k/yr OnsiteFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
3+ YOE3+ years system engineering/admin experience, hands-on Spok or similar paging systems, Windows Server/IIS/SQL expertise, strong troubleshooting and documentation skills, ability to obtain NIH Public Trust clearance.
Spok WebXchange, Spok Mobile, Zetron, Avaya PBX, Windows Server, IIS, SQL, Spok
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2mo
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System Administrator II (Cloud) - DevSecOps Pipeline Admin
Norfolk or Washington or Charleston or New Orleans
OnsiteFull Time
Engineering Services Network
Engineering Services Network: Defense IT and engineering services provider.
3+ YOEBachelor's degree in Electrical/Electronic/Computer Engineering, Computer Science, or Information Systems; Security+ and AWS Cloud Practitioner; 3 years in systems administration; DoD Secret Clearance.
AWS, Jira, Confluence, Security+, Firewall, Intrusion Detection
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1mo
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System Administrator
Fort Meade, Maryland, United States
OnsiteFull Time
Cryptic Vector
Cryptic Vector: Provides offensive cyber and electronic warfare solutions for government agencies.
3+ YOE3+ years Docker-based apps; AWS and Kubernetes; Linux/Windows admin; TS clearance; NSANet/JWICS/SIPRNet experience; PKI/SSH; Security+ preferred.
Docker, AWS, Kubernetes, Linux, Windows, PKI, SSH, IAM, EC2, EKS, RDS, S3
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2mo
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System Engineer
Springfield or Vienna or St. Louis
OnsiteFull Time
INCATech
INCATech: Geospatial technology services provider.
8+ YOE8+ years of professional experience; enterprise ArcGIS design/implementation; Windows/Linux admin; scripting languages; networking concepts; RDBMS SQL knowledge; BS in CS/GIS/STEM.
ArcGIS, Windows, Linux, PowerShell, Python, Javascript, C#, SQL Server, Oracle, PostgreSQL
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1mo
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Sr. Linux System Administrator / System Engineer
Annapolis Junction, Maryland, United States
$151k-$170k/yr OnsiteFull Time
Red Arch Solutions
Red Arch Solutions: Provides IT engineering solutions for the intelligence community.
10+ YOE10+ years Linux admin/engineering; TS/SCI with Poly; Linux (RHEL/CentOS); VMware; Security+; IC mission experience.
VMware, Ansible, Terraform, JBoss, Red Hat Enterprise Linux, Python, Shell
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5d
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Network/System Administrator (Net/Sys Admin) I
Arlington, Virginia, United States
$81k-$110k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
1+ YOEMust possess TS/SCI, 1+ years related experience, working knowledge of Windows and RHEL administration, networking, virtualization, SIEMs, and DoD policies; IAT Level I cert within 6 months.
Microsoft Windows Server, Red Hat Enterprise Linux, MS Hyper-V, VMWare, ESx, Xen, BMC Footprints, WSUS, Lumension, Bitlocker, SQL Server 2012, TomCat, IIS, Windows Server 2012r2/2016, Win 10, Red Hat 6.5, Microsoft Office Toolkits, SEIMs, Logrhythm, ACAS/Nessus/SCAP, SE Linux, PitBull, AppArmor, Sentris, VOIP, Oracle, MS SQL, Apache, CISCO
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1mo
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Network/System Administrator (Net/Sys Admin) III
Washington or Washington
$134k-$143k/yr OnsiteFull Time
Amatriot Group
Amatriot Group: Provides IT consulting and mission-critical technology support services.
5+ YOETS/SCI clearance (willing to obtain CI Poly), IAT Level 3, 5+ years related experience, 2+ years SAP experience, proficiency with Windows/Linux virtualization, security tools, and incident response.
Microsoft Windows Server, Active Directory, Red Hat Enterprise Linux, Microsoft Hyper-V, VMWare, ESx, Xen, BMC Footprints, WSUS, Lumension, BitLocker, SQL Server 2012, TomCat, IIS, Windows Server 2012r2, Windows Server 2016, Windows 10, Red Hat 6.5, Microsoft Office Toolkits, SEIMs, Logrhythm, ACAS, Nessus, SCAP, SE Linux, PitBull, AppArmor, Sentris, Oracle, MS SQL, Apache
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3w
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PMO Sr. System Administrator
Annapolis Junction, Maryland, United States
$135k-$216k/yr OnsiteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
10+ YOEBachelor's in a technical discipline and 10 years systems admin experience (HS+5 years accepted); DoD 8570 IAT Level 1 (Security+ minimum); 2+ years modern OS/network and 2+ years information assurance; active TS/SCI with polygraph required.
PuTTY, Active Directory, Cisco, Windows
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1w
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Linux System Engineer
Bethesda, Maryland, United States
$100k-$110k/yr HybridFull Time
T and T Consulting Services
T and T Consulting Services: Delivering enterprise IT and cybersecurity solutions to federal agencies.
5+ YOEPublic Trust clearance, 5+ years server administration, BS/BA or equivalent, 3+ years UNIX/Linux admin, experience automating deployments, Splunk/Nagios monitoring, strong communication skills.
Ansible, Puppet, Packer, Vagrant, VMware vSphere, Git, Red Hat Satellite, Splunk, Nagios
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1w
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System Administrator 4 - Chantilly, VA
Chantilly, Virginia, United States
$125k-$156k/yr OnsiteFull Time
M.C. Dean
M.C. Dean: Design-build and systems integration for complex, mission-critical infrastructure.
7+ YOEActive Top Secret/SCI with poly required; 7+ years (or equivalent) systems admin experience; 2+ years PACS programming; Security+, CASP, or CISSP; Windows AD, patching, vulnerability remediation, team leadership experience.
Microsoft Excel, Microsoft Word, Microsoft Visio, Microsoft PowerPoint, ACAS, HBSS, eMASS, VMware, Citrix Xen Desktop, Dell EqualLogic, Dell Powervault, SQL, Active Directory, Citrix, Hypervisor
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2mo
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System Administrator/SOC Analyst
Columbia, Maryland, United States
OnsiteFull Time
DigiFlight
DigiFlight: Provides cybersecurity, aerospace, and systems engineering for government agencies.
7+ YOE7+ years system administration; endpoint hardening; reporting from SEIM/EDR/DLP/MDM; Workspace Admin Console familiarity.
EDR, DLP, MDM, SIEM, YubiKeys, STIG, Google Workspace, Chrome Enterprise Browser, Entra ID GCCH, Box for Government, GovSlack
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3mo
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System Administrator, Senior
Linthicum, Maryland, United States
$148k-$267k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
15+ YOEBachelor’s degree in a technical discipline and 15+ years’ experience, or HS diploma and 20+ years’ experience; TS/SCI with polygraph; DoD IAT II certs; Windows and Linux admin; VMware; RMF knowledge; strong collaboration and communication.
Windows Server Administration, Active Directory, Group Policy, Linux Server Administration, VMware/ESXi, VMware vCenter, Networking (Switching and Routing), NetApp Storage, Nessus, ACAS, RMF
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2mo
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System Administrator (All Levels)
Annapolis Junction, Maryland, United States
OnsiteFull Time
Adaptic
Adaptic: Defense contractor providing software, engineering, and cybersecurity mission support.
Active TS/SCI with polygraph; Linux/Unix and Windows admin experience; networking knowledge; troubleshooting; degree in CS/IT or equivalent experience
Linux, Unix, Windows, VMware, ESXi, Bash, Python, PowerShell, Ansible, Puppet, Salt
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3mo
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IT System Administrator Level II
Columbia, Maryland, United States
OnsiteFull Time
CenCore Group
CenCore Group: Provides secure modular facilities and professional defense security services.
10+ YOE10+ years as a System Administrator; DoD DoD 8570 IAT Level 2; Windows admin (physical/virtual); TS clearance with polygraph; DoD/federal contracting experience.
Windows Server, VMware, Hyper-V, Security auditing tools, Patch management
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4d
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Net/Sys Admin III - Network/System Administrator III
Washington, District of Columbia, United States
$104k-$125k/yr OnsiteFull Time
Watermark Risk Management International
Watermark Risk Management International: Provides security and risk management services for government agencies.
5+ YOETop Secret/SCI clearance, DoD 8570 IAT Level II within 6 months, 5+ years experience, bachelor\u0002s or equivalent, SAP/SAP experience preferred, ability to lift 50 lbs.
Microsoft Windows Server, Active Directory, Red Hat Enterprise Linux, Microsoft Hyper-V, VMWare, ESx, Xen, BMC Footprints, WSUS, Lumension, Bitlocker, Microsoft SQL Server 2012, TomCat, IIS, Microsoft Windows Server 2012r2, Microsoft Windows Server 2016, Microsoft Windows 10, Red Hat 6.5, Microsoft Office, SIEMs, LogRhythm, ACAS, Nessus, SCAP, SELinux, PitBull, AppArmor, Sentris, VOIP, Oracle, Apache
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