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Sr. Information Security Analyst

The RDRG Inc

Dallas · Hybrid Contract Senior 4w ago

About the role

About

We are partnering with a large enterprise organization seeking a Sr. Information Security Analyst to support enterprise infrastructure security, vulnerability management, and operational security initiatives across a complex distributed environment.

This role is best suited for someone with a strong infrastructure and systems security background — someone who understands how enterprise servers, networks, cloud environments, and operational platforms are secured in real-world environments.

This is not a narrow SOC-only monitoring role. While the position does involve alert triage and security investigations, the larger focus is improving and supporting secure enterprise infrastructure across Windows, Linux, cloud, and network environments while partnering closely with infrastructure, engineering, and operational teams.

The right person will be comfortable operating between security operations, infrastructure security, vulnerability remediation, governance, and enterprise risk reduction efforts.

What You’ll Be Doing

  • Support enterprise-wide infrastructure security initiatives across server, cloud, network, and endpoint environments
  • Investigate and triage security alerts, suspicious activity, and operational security issues across enterprise systems
  • Partner closely with infrastructure and engineering teams to strengthen Windows and Linux server security practices
  • Support vulnerability management efforts including remediation tracking, impact analysis, and risk reduction initiatives
  • Assist with server hardening, secure configuration standards, and operational security improvements
  • Review logs from servers, endpoints, firewalls, IDS/IPS platforms, and security tooling to support investigations and operational visibility
  • Support Azure security initiatives and cloud remediation activities across distributed enterprise environments
  • Participate in security governance, risk assessments, documentation, and operational security standards development
  • Help improve enterprise security posture through practical operational security recommendations and cross-functional collaboration
  • Contribute to long-term infrastructure security and operational security improvement initiatives

What Makes Someone Strong in This Role

  • Strong understanding of Windows and Linux server environments
  • Experience supporting enterprise infrastructure security initiatives
  • Background working in large distributed enterprise environments with multiple systems and technologies
  • Practical experience with vulnerability management and remediation workflows
  • Comfortable partnering with infrastructure, engineering, and operational IT teams
  • Understanding of networking fundamentals including TCP/IP, firewalls, IDS/IPS, and enterprise network security concepts
  • Experience with SIEM and endpoint security tools, but from an operational security perspective rather than purely SOC monitoring
  • Strong troubleshooting, analytical thinking, and operational problem-solving skills
  • Ability to communicate effectively with both technical and non-technical stakeholders
  • Familiarity with governance, compliance, and security frameworks such as NIST, CIS Controls, or ISO 27001

Technical Environment

  • Windows & Linux Server Environments
  • Azure Security & Cloud Security Controls
  • Vulnerability Management Tools (Nessus, Qualys)
  • SIEM & Security Monitoring Platforms (Splunk, QRadar, Sentinel)
  • Endpoint Security / EDR (CrowdStrike, Microsoft Defender)
  • Firewalls, IDS/IPS, TCP/IP Networking
  • Enterprise Infrastructure & Distributed IT Environments

Preferred Background

  • Enterprise infrastructure security or systems security experience
  • Experience supporting operational security initiatives across large organizations
  • Security governance and risk assessment exposure
  • CISSP or equivalent security certification preferred
  • Experience supporting remote workforce and enterprise-scale operational environments

Why This Role Stands Out

  • Broad exposure across enterprise infrastructure security and operational security initiatives
  • Opportunity to work beyond traditional SOC monitoring responsibilities
  • Strong visibility across infrastructure, engineering, and leadership teams
  • High-impact role supporting enterprise-scale systems and security operations
  • Long-term opportunity to influence operational security improvements and enterprise risk reduction efforts

Skills

AzureCIS ControlsCrowdStrikeFirewallsHack The BoxIDS/IPSInformation SecurityISO 27001LinuxMicrosoft DefenderNessusNISTQualysQRadarSentinelSIEMSplunkTCP/IPVulnerability ManagementWindows Server

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