Add your latest resume to match with open positions.

2 results for Systems Security Administrator in Houston, TX

Senior Systems Administrator

Houston, TX
onsite
Temporary / Contract
55 - 58 USD / Hourly
We are seeking an experienced Senior Systems Administrator to support and modernize enterprise infrastructure across both on-premises and cloud environments. This role is responsible for maintaining the reliability, security, scalability, and performance of critical IT systems while helping drive cloud adoption and infrastructure modernization initiatives. The ideal candidate will bring strong expertise in systems administration, virtualization, networking, storage, Active Directory, and firewall management, along with hands-on experience supporting cloud platforms such as AWS, Azure, or Google Cloud Platform (GCP). This is an excellent opportunity for a self-motivated IT professional who enjoys working across diverse technologies in a hybrid infrastructure environment. Key Responsibilities<ul><li>Administer, maintain, and troubleshoot Windows and Linux server environments.</li><li>Manage enterprise networking infrastructure and ensure optimal performance, reliability, and security.</li><li>Configure and maintain firewall policies and security controls.</li><li>Monitor system health, availability, and performance across on-premises and cloud environments.</li><li>Perform operating system upgrades, patch management, and infrastructure maintenance.</li><li>Support and manage VMware virtualized environments.</li><li>Administer hybrid cloud infrastructure across AWS, Azure, GCP, or similar cloud platforms.</li><li>Design, deploy, and maintain cloud-based infrastructure, networking, security, and monitoring solutions.</li><li>Develop automation solutions and Infrastructure as Code (IaC) deployments to improve operational efficiency.</li><li>Conduct system audits and ensure compliance with security and operational standards.</li><li>Troubleshoot and resolve infrastructure issues while providing high-quality technical support.</li><li>Maintain documentation including system configurations, architecture diagrams, operational procedures, and project updates.</li><li>Manage Active Directory, domain controllers, DNS, DHCP, and Group Policy Objects (GPOs).</li><li>Support enterprise storage technologies and backup solutions.</li><li>Coordinate with vendors and third-party service providers.</li><li>Participate in infrastructure upgrades, migrations, and cloud transformation projects.</li><li>Collaborate with technical teams and stakeholders to deliver infrastructure solutions and support business objectives.</li></ul>
2026-08-31T00:00:00Z

IT Security Specialist

Houston, TX
onsite
Temporary to Hire
35 - 40 USD / Hourly
We are looking for an IT Security Specialist to join a credit union team in Houston, Texas in a contract-to-permanent capacity. This role focuses on protecting systems, data, and infrastructure through hands-on monitoring, incident response, vulnerability management, and security operations support. The ideal candidate will contribute to day-to-day cyber defense activities while helping strengthen governance, third-party risk oversight, and overall security readiness across the organization. Responsibilities: • Monitor security activity, review alerts, and investigate suspicious behavior to identify and respond to potential threats. • Support the full incident response lifecycle, including triage, containment, recovery coordination, and post-incident documentation. • Use security tools, threat intelligence, and forensic techniques to analyze malicious activity and assist with cyber investigations. • Maintain and improve response playbooks, operational procedures, dashboards, and reporting used to track security performance and incidents. • Coordinate vulnerability management efforts by helping identify exposures, validating remediation, and confirming corrective actions are completed. • Administer and support endpoint and network security technologies, including Fortinet solutions such as FortiGate, FortiManager, FortiAnalyzer, FortiAuthenticator, FortiClient, and FortiEMS. • Review and verify secure settings across servers, user devices, cloud environments, and network components to promote compliance with security standards. • Assist with risk reviews, audit preparation, evidence collection, and follow-up activities related to internal assessments, external audits, and regulatory examinations. • Evaluate vendor and third-party security documentation, help document associated risks, and support ongoing due diligence and monitoring activities. • Contribute to awareness initiatives, phishing exercises, tabletop sessions, and continuity testing while sharing insights on emerging cyber risks and improvement opportunities.
2026-08-26T00:00:00Z