Senior Cybersecurity Analyst (InfoSec) | Hybrid Security Operations (Dallas, TX)

About the Role

Dallas County is seeking a Senior Cybersecurity Analyst to help protect enterprise information systems and data. In this role, you’ll combine threat detection, incident response, compliance monitoring, and security policy implementation to support a hybrid environment while meeting key regulatory and framework requirements, including CJIS, HIPAA, and NIST 800-53.

Responsibilities

• Investigate escalated security tickets, alerts, and events using advanced triage techniques
• Coordinate with technical teams to support containment and resolution during incidents
• Document incident response actions and maintain accurate security records
• Support day-to-day operations of security infrastructure, including SIEM and endpoint detection and response tooling
• Perform alert tuning, rule validation, and ensure reliable telemetry ingestion into security platforms
• Work with IT Security Engineering and Compliance teams to defend the infrastructure against evolving threats

Requirements

• Strong experience in security operations, incident response, and threat detection
• Knowledge of compliance expectations aligned to CJIS, HIPAA, and NIST 800-53
• Experience working with SIEM and endpoint detection and response (EDR) environments
• Ability to validate detection rules and improve alert fidelity through tuning
• Proven ability to coordinate across technical teams during security investigations

Benefits

• Opportunity to support critical public-sector security initiatives
• Collaborative environment with Security Engineering and Compliance teams
• Work aligned to recognized security frameworks and regulatory requirements