160 pki systems administrator jobs at 83 companies in United States
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PKI Systems Administrator - active Top Secret required
Washington, District of Columbia, United States
$128k-$173k/yr OnsiteFull Time
5+ YOEManage and maintain PKI systems, administer digital certificates, troubleshoot PKI issues, enforce PKI policies; requires bachelor\u0002s or equivalent experience, 5+ years related experience, US citizenship, DoD 8140 IAT II compliance.
PKI, Hardware Security Modules (HSMs), PowerShell, Python, X.509, TLS/SSL, OCSP, CRLs
3mo
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PKI Systems Administrator - TS/SCI with Polygraph
Annapolis Junction or Colorado Springs or Washington or MacDill AFB or Springfield
$147k-$199k/yr OnsiteFull Time
10+ YOE10+ years IT experience; TS/SCI with polygraph; PKI administration; MFA and identity management; DoD 8140 certifications; US citizenship.
PKI, Certificate Services, Token Management, Multifactor Authentication, CRL validation, Identity management tools
3w
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PKI Engineer, Senior
Laurel, Maryland, United States
$87k-$198k/yr RemoteFull Time
5+ YOEPKI deployment, Python, Perl, or Base, Red Hat Certificate System, Dogtag PKI, or EJBCA, technical documentation, secure PKI web applications, Secret clearance, DoD 8570 certification, and 5+ years of systems or network administration with a bachelor's degree.
Python, Perl, Base, Red Hat Certificate System, Dogtag PKI, EJBCA, Java, AWS, ActivClient
3w
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PKI Engineer, Senior
Laurel or Fort Huachuca
$87k-$198k/yr OnsiteFull Time
5+ YOERequires PKI deployment, Python, Perl, or Base scripting, Red Hat Certificate System, Dogtag PKI, or EJBCA, technical documentation, Secret clearance, DoD 8570 certification, and 5+ years of systems or network administration with a bachelor's degree.
Python, Perl, Base, Red Hat Certificate System, Dogtag PKI, EJBCA, Java, AWS, ActivClient, DoD PKIB, Microsoft Edge, Google Chrome, Mozilla Firefox, Apple Safari, Opera Browser
3w
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Senior Systems Administrator
Loveland or Ames
$95k-$105k/yr HybridFull Time
6+ YOEBachelor’s degree or equivalent experience; 6+ years in enterprise infrastructure or systems administration; expertise in Windows Server, Active Directory, DNS/DHCP, Group Policy, VMware, PKI, email authentication, vulnerability remediation, and PowerShell.
Windows Server, Active Directory, VMware, DNS, DHCP, Group Policy, DKIM, SPF, DMARC, SSL/TLS, PKI, PowerShell
1w
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Systems Administrator
Springfield or Herndon or Virginia
$180k-$325k/yr OnsiteFull Time
5+ YOERequires 5+ years of systems administration experience, Windows Server, Active Directory, VMware, System Center Configuration Manager and Operations Manager, approved security certification, US citizenship, TS/SCI, and Full Scope Polygraph.
Microsoft Windows Server, Microsoft Active Directory, VMware, Microsoft System Center Configuration Manager, Microsoft System Center Operations Manager, PowerShell, DNS, DHCP, PKI, SAN, NAS, STIGs, RMF
1mo
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Linux Systems Administrator
Alexandria, Virginia, United States
$97k-$165k/yr RemoteFull Time
4+ YOEAbility to obtain Top Secret clearance; Bachelor's degree (or equivalent) with 4+ years experience; RHEL 7/8 administration, PostgreSQL, Bash scripting, Apache/Tomcat, PKI/SSL, DoD STIGs/RMF, DoD 8570 IAT II (Security+), OS certification (Linux+).
RHEL 7/8, PostgreSQL, Bash, Apache Web Server, Apache Tomcat, PKI, SSL, STIGs, RMF, Zabbix, Radix, eMASS, ServiceNow, GitLab, Ansible
1mo
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Systems Administrator
Fort Meade, Maryland, United States
$121k-$266k/yr OnsiteFull Time
10+ YOETS/SCI with Polygraph required; Bachelor's degree in IT or related field (or equivalent experience); 10+ years systems administration experience; DoD 8570/8140 IAT Level II; experience with firewalls, VPNs, VMware, automation (Python/Bash/Ansible), Windows/Linux administration, IAVA/STIG remediation, and Nessus.
Cisco ASA, Cisco Firepower, Palo Alto, IPSEC VPNs, ASA-to-ASA, VMware, Python, Bash, Ansible, Ansible Playbooks, Nessus, Docker, Kubernetes, Splunk, Elastic, SolarWinds, Active Directory, DNS, DHCP, PKI, LDAP
1w
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Systems Administrator
Carlsbad, New Mexico, United States
OnsiteFull Time
2+ YOEAssociate degree in computer science or related field, or 4 years relevant IT experience; 2+ years in systems administration and customer support, including Microsoft servers, virtualization, storage, cybersecurity, and technical documentation.
Microsoft Windows, Active Directory, Remedy, ZenDesk, Web Help Desk, Hyper-V, VMware, Omnissa View Horizon, SAN, Microsoft M365, Microsoft Exchange, VOIP, SCCM, Smart Card, PKI, CIS, USGCB
1mo
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Systems Administrator
Niceville, Florida, United States
OnsiteFull Time
10+ YOEActive Top Secret clearance, 10+ years systems administration experience, strong Windows/Linux and virtualization skills, RMF/DoD experience, ability to lift 35 lbs and travel up to 20%.
VMware, VxRail, vSphere, vDS, NSX, Microsoft SQL Server, Horizon UAG, VDI, Microsoft Active Directory, Microsoft Group Policy, DNS, Web Application Proxy, ADFS, PKI, Docker, Containers, Kubernetes, RHEL, Satellite, ansible, syslog, HBSS, Splunk, SolarWinds, EPO (Trellix), ACAS
1mo
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Systems Administrator
Fort Meade, Maryland, United States
$121k-$266k/yr OnsiteFull Time
10+ YOETS/SCI with Poly required; Bachelor's in IT or related (or equivalent experience); 10+ years systems administration; DoD 8570 IAT II certification; experience with firewalls, virtualization, automation, patching, and DoD cybersecurity compliance.
Cisco ASA, Cisco Firepower, Palo Alto, IPSEC VPNs, ASA-to-ASA, VMware, Python, Bash, Ansible, Ansible Playbooks, Nessus, Docker, Kubernetes, Splunk, Elastic, SolarWinds, Active Directory, DNS, DHCP, PKI, LDAP
1mo
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Systems Administrator 1 - 3
Columbia, Maryland, United States
$105k-$223k/yr OnsiteFull Time
5+ YOEExperience administering Linux systems in container/cloud environments with storage, virtualization, networking, PKI/TLS, and troubleshooting; IAT Level 2 and active security clearance with polygraph required; bachelor's or equivalent experience.
Linux, Containers, Cloud, Storage Management, Virtualization, IP networking, Firewall, PKI, TLS, SSP, STE, STN, Service Oriented Architecture (SOA)
2w
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PKI Operations Engineer
Fort Meade or Montgomery County or Prince George's County
HybridFull Time
5+ YOERequires 5+ years of systems or operations engineering, Linux/RHEL administration, PKI operations, scripting, active Secret clearance, and DoD 8570/8140 IAT Level II certification.
Red Hat Certificate System (RHCS), RHEL, ACME, Entrust nShield, Thales Luna, Python, Bash, Podman, Docker, KVM, Dogtag PKI, EJBCA, Microsoft AD CS, Entrust Authority, ISC CertAgent, Ansible, Prometheus, Grafana, ELK, JIRA, LDAP, ML-DSA/Dilithium, Kyber, CNSA 2.0, Scrum
1w
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Systems Administrator - Organizational Messaging Systems (OMS)
Arlington, Virginia, United States
$95k-$130k/yr OnsiteFull Time
5+ YOESystems administration experience with DoD messaging platforms, clustered environments, Windows Server or Red Hat Linux, Microsoft SQL, IIS, communications troubleshooting, PKI, and cross-domain solutions. Active Secret clearance and U.S. citizenship required.
Telos Automated Message Handling System (AMHS), Northrop Grumman Enhanced Communication Gateway System (ECGS), Message Conversion System, Central Directory Component, Information Transport Service, Syndeo Intelligent Gateway, Radiant Mercury Cross Domain Solution, Windows Server, Red Hat Linux, Microsoft SQL, Microsoft Internet Information Services, Oracle, SFTP, Microsoft SQL Server, TCP, JAR, TLS 1.2, Linux, oscilloscopes, protocol analyzers
1w
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Sr. Systems Administrator
Roseville, California, United States
$126k-$180k/yr OnsiteFull Time
Bachelor’s degree or equivalent experience; 8+ years of enterprise systems administration and Microsoft technologies, 5+ years Azure and Microsoft 365, virtualization, storage, backup, automation, SSO, and infrastructure security experience.
Microsoft Azure, Microsoft Office 365, Microsoft Entra ID, MFA, Information Protection, Active Directory, Windows Server, Linux Server, SAN/NAS, SAP, Dell Boomi, DNS, DHCP, Microsoft PKI, Group Policy, SCCM, Intune, BitLocker, Key Management, Privileged Identity Management, Log Analytics, Digital Rights Management, Microsoft 365, Hyper-V, VMware, PowerShell, ADFS, SCOM, Exchange Online, OneDrive, SharePoint, Microsoft Teams, TCP/IP, PKI, SAML, OpenID, Cisco UCS, RHEL, DevOps, IaC, SSO
2w
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Systems Administrator Journeyman
Alexandria or Kearneysville
$74k-$120k/yr HybridFull Time, Contract
3+ YOERequires 3–5+ years of systems administration experience, Windows Server and/or Linux expertise, enterprise networking knowledge, classified-environment experience, active Secret clearance, and Security+ CE or equivalent preferred.
Windows Server, Linux, Active Directory, Group Policy, DNS, DHCP, TCP/IP, VMware, Cisco, Cisco ISE, PowerShell, Bash, SIPRNet, DISA STIGs, Comply-to-Connect (C2C), PKI, CAC
1w
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Systems Administrator II
Buffalo, New York, United States
$80k-$90k/yr HybridFull Time, Temporary
3+ YOEBachelor’s degree plus 3 years of computer or technical experience, or master’s degree plus 1 year, or equivalent. Requires U.S. work authorization; systems administration and infrastructure technology experience preferred.
Azure, Active Directory, MS Entra ID, PKI, Microsoft 365, VMware, Hyper-V, HPE, Listserv, Veeam
1mo
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Sr Systems Administrator
Colorado Springs, Colorado, United States
$132k-$220k/yr OnsiteFull Time
10+ YOE10+ years managing DoD Windows environments, advanced virtualization, networking, security, and systems administration. Requires DoD 8570 IAT II certification, VDI certification, U.S. citizenship, and Top Secret/SCI clearance.
Nutanix HCI, Citrix CVAD, VMware ESXi, Dell VxRail, Microsoft Group Policy Objects (GPOs), WSUS, MECM, SCCM, SQL Server, Windows 10, Windows 11, PKI, KVMs, OSI, Wireshark, tcpdump, F5, NetScaler, GSLB, Amazon Web Services (AWS), Microsoft 365, HBSS, Axway Tumbleweed, OCSP, Everfox, Forcepoint, Raytheon, PowerShell, DNS, DHCP, Infoblox, Windows Failover Cluster, SPNs
3mo
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Sr Systems Administrator
Colorado Springs, Colorado, United States
$115k-$192k/yr OnsiteFull Time
10+ YOE10 years DoD Windows Server; DISA STIGs; enterprise virtualization; DoD on-prem VDI; GPOs; PKI; SQL Server Always On; Windows 10/11; DoD 8570 Level II.
VMware ESXi, Dell VxRail, Nutanix, VMware Horizon, Citrix, Microsoft SQL Server, Windows 10/11, Active Directory, PKI, Group Policy Objects (GPOs), Microsoft 365, Microsoft System Center Configuration Manager (SCCM), Amazon Web Services (AWS), HBSS, Axway Tumbleweed, OCSP, DHCP, NetScaler, F5, Global Server Load Balancing (GSLB), Nutanix Hypervisor, PowerShell, DNS, SPNs, tcpdump, Wireshark, Fiddler
6d
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Senior Systems Administrator - 557148
Wright-Patterson Air Force Base, Ohio, United States
OnsiteFull Time
Requires active Secret clearance, CompTIA Security+ or DoD-aligned certification, systems administration experience across Windows/Linux and virtualization, cybersecurity compliance, troubleshooting, integration, documentation, and change management.
VMware ESX, Active Directory, LDAP, Windows Server 2019, Windows Server 2022, Windows Server 2025, Linux RHEL, DISA STIGs, PKI, COMSEC, RMF, AFRL DREN, NIPRNet
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