42 security administrator jobs at 35 companies in Marion, TX
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Office Administrator – VC-25B
San Antonio, Texas, United States
$60k-$81k/yr OnsiteFull Time
3+ YOE3+ years administrative support experience; managing executive schedules with Microsoft Outlook; Microsoft Office proficiency; experience coordinating travel and expenses; ability to obtain U.S. Secret security clearance (U.S. citizenship required).
Microsoft Outlook, Microsoft Office Suite, Concur
2w
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HRIS Administrator/HR Administrator
San Antonio or Alexandria
HybridFull Time
3+ YOE3+ years HR or operations experience supporting onboarding, payroll, benefits, HRIS administration, reporting, and employee relations; strong Excel and HR technology skills; ability to obtain DOD security clearance.
Microsoft Excel, Paylocity, Workday, Unanet, Costpoint, Lever, ServiceNow, JIRA, Google Workspace
2mo
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Firewall/Network Security Administrator
San Antonio, Texas, United States
OnsiteFull Time
5+ YOE5+ years enterprise network security; DoD boundary protection; firewall/IDS/IPS; DCO; Top Secret/SCI clearance.
Firewalls, IDS/IPS, Load balancers, Web proxies
1w
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System Administrator
San Antonio, Texas, United States
OnsiteFull Time
5+ YOE5+ years systems administration experience preferred, bachelor\u0002s in a technical discipline, active security clearance with polygraph, ability to manage UNIX/Windows systems, Tier 1/2 support and troubleshooting.
UNIX, Windows
2mo
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Red Hat Linux System Administrator
San Antonio, Texas, United States
OnsiteFull Time
Windows and Linux system administration; hardware/software management; patching and security; accreditation docs OV1-OV3; vulnerability scanning; CLI proficiency.
Red Hat Linux, Windows Server, STIG, SCAP, SIEM, HIDS, NIDS
1w
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Network Administrator (2nd Shift)
San Antonio, Texas, United States
$70k-$90k/yr OnsiteFull Time
1+ YOERequires 1–2 years of network administration experience, high school diploma/GED, Secret clearance or eligibility, 8570 IAT Level II and CND Infrastructure Support certification, and network security expertise.
VMware, Palo Alto, Cisco, LAN/WAN, VPN, IPS, TCPDump, Wireshark, DNS, SMTP, NTP, IMAP, SNMP
2mo
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Intermediate System Administrator
San Antonio or Fort Meade
OnsiteFull Time
10+ YOE10+ years IT systems administration on Windows and Linux; AWS maintenance; Kubernetes; Docker; Terraform; Helm; Ansible; CI/CD; GitLab; Kustomize; IAT Level II; Security+; CISSP; TS/SCI eligibility
Kubernetes, Docker, AWS, Azure, Google Cloud, Linux, Windows, Helm, Terraform, Ansible, Vault, CI/CD, GitLab, Kustomize
3w
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Contracts Administrator
San Antonio, Texas, United States
$75k-$80k/yr OnsiteFull Time
3+ YOEBachelor's or equivalent, 3+ years contract management, 5+ years federal contracting experience, experience with WAWF and FAR/DFAR, strong negotiation and analysis, ability to obtain DoD security clearance.
WAWF, FAR/DFAR
1mo
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Network Administrator III (WAN)
San Antonio, Texas, United States
OnsiteFull Time
7+ YOE7+ years network administration experience; HS diploma/GED; Security+ and CCNA required; CCNP/CCIE desired; experience with routers, switches, load balancers, WAN, SDN, IDS; US citizenship and current TS/SCI clearance.
SDN, IDS
1w
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Linux Administrator
San Antonio, Texas, United States
$125k-$135k/yr OnsiteFull Time
9+ YOETS/SCI clearance, 9+ years IT support experience, high school or equivalent, DoD 8140 IAT Level II (CompTIA Security+), RHEL and Ansible expertise, networking, scripting (Bash/Python), VMware and ELK experience.
RHEL, Red Hat Satellite, Hammer CLI, PXE, DHCP, TFTP, Ansible, Bash, Python, Elasticsearch, Kibana, Logstash, Beats, VMware Horizon, vCenter, vSphere, ESXi
2mo
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Systems Administrator
Tacoma or Aurora or San Antonio or Falls Church
OnsiteFull Time
8+ YOEU.S. citizen required; active IAT II and related Computing Environment (CE) certifications; 8+ years mobile application experience; 4-year degree in IT/math or equivalent; experience with secure DoD web development and leading teams.
HTML, CSS, JavaScript, React, Angular, Vue, Active Server Pages (ASP.NET), C#, Sitecore Content Management System (CMS), SQL, Jira, MVC5, PWAs
1d
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Site System Administrator
San Antonio or United States
OnsiteFull Time
5+ YOEBachelor's degree in IT or related field, 5+ years of experience, Secret security clearance, and preferred CompTIA Security+ and ITIL 4 Foundation certifications. Must lift up to 40 pounds and travel up to 10%.
Active Directory (AD), System Center Configuration Manager, Post Administration Tool, Travel Document Issuance System, Passport Records Imaging System Management, Automated Cash Register System, vSphere Installation Bundles (VIBs), Oracle, SQL, ServiceNow
2mo
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System Administrator
San Antonio, Texas, United States
$110k-$127k/yr OnsiteFull Time
4+ YOEBachelor's in computer-related field and 4+ years' experience; active TS/SCI clearance required; experience with Linux/RHEL, Kubernetes/Open Shift, SAN/NAS, Windows Server, HPC; CompTIA Security+ CE and RHCSA certifications preferred; able to support on-call/shift work and TDY.
Linux/RHEL, Kubernetes, Open Shift, NAS/SAN, Windows Server, Active Directory, DNS, application servers, database server, mail servers, High-performance computing (HPC)
1mo
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Data Security Clerk
San Antonio, Texas, United States
$19-$24/hr OnsiteFull Time
0.5+ YOEHigh school diploma or equivalent required; some business coursework preferred; six months general office experience preferred; ability to perform clerical office duties in a data security department.
1mo
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Operational Database System Administrator
San Antonio, Texas, United States
$101k-$110k/yr OnsiteFull Time
3+ YOEMaster's+3yrs or Bachelor's+5yrs experience; Oracle DBA (19c+) skills, SQL/PLSQL, Red Hat Linux administration, ability to obtain security clearance and IAT Level II certification, strong troubleshooting and communication.
Oracle 19c, Oracle GoldenGate, Oracle Label Security, SQL, PL/SQL, Red Hat Linux, ESXi
1w
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IT Systems Administrator
San Antonio, Texas, United States
OnsiteFull Time
3+ YOE3+ years administering Microsoft 365 and Azure/Entra ID, experience with conditional access/MFA, endpoint security, Citrix VDI, PowerShell scripting, and vendor management; willingness for after-hours escalation and travel for site buildouts.
Microsoft 365, Exchange Online, SharePoint, Microsoft Teams, OneDrive, Azure, Entra ID, CrowdStrike, Qualys, Citrix, Intune, Windows Autopilot, PowerShell, Microsoft Graph API, Copilot, Claude
1mo
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Senior Analyst, Information Security
San Antonio or Dallas or Maryville or Cincinnati
OnsiteFull Time
5+ YOEBachelor's in IT/security, 5+ years IT security experience (including 3+ years network/system administration), SIEM and endpoint protection expertise, vulnerability management, incident response, MITRE ATT&CK knowledge, SDLC and application security, containerization and DevSecOps, AWS familiarity, authorized to work in the U.S.
Rapid7, Sentinel, AWS, SIEM, IDS/IPS, Endpoint Protection, DLP, MFA, SSO, MITRE ATT&CK, SDLC
2mo
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Cloud Services Administrator 1
Omaha or Saint Louis Park or Denver or Englewood or Orlando or Kansas City or Albuquerque or Portland or Salem or Pittsburgh or Austin or Dallas or Fort Worth or San Antonio or Vienna or Olympia or Columbia or St. Paul or Harrisburg or Pennington or Woodcliff Lake or Phoenix or Folsom
OnsiteFull Time
1+ YOEAssociate's degree or equivalent, 1+ year IT infrastructure/systems/cloud experience, basic cloud concepts, ITSM familiarity, foundational security knowledge, ability to learn Azure/AWS/GCP/OCI; on-call participation required.
Azure, AWS, GCP, OCI, PowerShell, Bash, Python, Terraform, Microsoft Entra ID, Microsoft Azure AD, Okta, Snowflake
3w
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Sr. SQL Database Administrator
San Antonio, Texas, United States
$80k-$128k/yr OnsiteFull Time
8+ YOE8+ years experience with BS/BA (or 12 years with HS), advanced proficiency with SQL and enterprise databases, ability to obtain Tier 3 investigation and Public Trust, DoD 8570 IAT Level II (e.g., Security+ CE) within 45 days.
SQL, ETL/ELT
3w
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Sr. SQL Database Administrator
San Antonio, Texas, United States
$80k-$128k/yr OnsiteFull Time
8+ YOE8+ years experience with BS (12+ with HS), advanced SQL and enterprise DBMS proficiency, ETL/ELT experience, DoD 8570 IAT Level II (e.g., Security+ CE) within 45 days, favorable Tier 3 investigation, US citizenship required.
SQL, ETL, ELT
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