Senior InfoSec Analyst – AI-Driven Investigations (Hybrid)

Prestige Staffing; Dallas (TX); Hybrid; USD 125,000 - 140,000; Full time

Benefits offered by this job

Medical benefits for you and dependets

401(k) match

Paid time off: 3 weeks + holidays

Certification reimbursement

Growth opportunities

Job summary

Prestige Staffing is seeking an experienced Information Security Analyst in Uptown Dallas, TX, hybrid. You will monitor security alerts, perform investigations, and respond to incidents in a 24x7 environment, leveraging AI-assisted tools and a strong technical background.

The role requires solid SIEM/EDR experience, cloud security knowledge (Azure, AWS), scripting (Python/PowerShell), and certifications; you’ll contribute to policy alignment with NIST/ISO standards, with excellent growth and

Qualifications

• Bachelor’s degree or equivalent experience in cyber security or related field.
• 4+ years of technical security experience, including 2+ years in security operations.
• Strong knowledge of SIEM, EDR/XDR platforms such as CrowdStrike, Defender, SentinelOne, Microsoft Sentinel, Rapid7 InsightIDR.
• Experience investigating alerts, phishing emails, and handling incidents in high-pressure environments.
• Hands-on with controls like EDR, email security, web proxies, DLP, MFA, VPNs, and zero trust.
• Familiarity with Azure and AWS cloud security.
• Ability to write queries (KQL, SPL) and scripts (Python, PowerShell) for log analysis and automation.
• Excellent communication, presentation, and documentation skills.
• Certifications such as CISSP, CEH, GIAC, Security+ or equivalent preferred.

Responsibilities

• Monitor and analyze security alerts from SIEM, EDR, cloud security, and email platforms.
• Investigate potential security incidents including email threats and suspicious activity.
• Use AI-assisted security tools for threat detection and triage.
• Respond to endpoint alerts, contain threats, and document details.
• Collaborate with cybersecurity team members to correlate threat data and validate alerts.
• Support vulnerability management and risk assessments.
• Assist in implementing and maintaining policies aligned with NIST CSF, ISO 27001, and ISO 9001.
• Participate in incident response and security improvement initiatives.
• Maintain up-to-date technical documentation and diagrams.

Skills

Security investigations

Alert triage

Incident response

Log analysis

Scripting (Python, PowerShell)

KQL/SPL queries

Communication & documentation

Security controls knowledge

Cloud security (Azure, AWS)

Education

Bachelor's degree in Cyber Security or related field

Tools

CrowdStrike

Microsoft Defender

SentinelOne

Microsoft Sentinel

Rapid7 InsightIDR

Job description

Pay

$125,000 base salary + $15,000 bonus — $140,000 total compensation

Job Title

Information Security Analyst

Pay

$125,000 base salary + $15,000 bonus — $140,000 total compensation

Location:

Uptown Dallas, TX (Hybrid)

Summary

We are seeking an experienced and technically proficient Information Security Analyst to join a dynamic and rapidly growing security team. In this role, you will be the first line of defense, focusing on alert handling, investigations, and incident response within a 24x7 environment. The ideal candidate is someone who has progressed from a SOC Analyst 2 position, with a strong technical background, proven experience in security investigations, alert triage, and the use of advanced security tools including AI-integrated capabilities. This position offers significant growth opportunities, the chance to work with cutting-edge security technologies, and a collaborative team culture committed to professional development.

Requirements

• Bachelor’s Degree in Cyber Security or related field, or equivalent experience
• 4+ years of technical security experience, including 2+ years in a security operations role
• Strong knowledge of SIEM, EDR/XDR platforms (e.g., CrowdStrike, Defender, SentinelOne, Microsoft Sentinel, Rapid7 InsightIDR)
• Experience investigating alerts, phishing emails, and incident handling in a high-pressure environment
• Hands-on experience with security controls such as EDR, email security, web proxies, DLP, MFA, VPNs, and zero trust architectures
• Familiarity with cloud security, especially Azure and AWS
• Ability to write queries (e.g., KQL, SPL) and scripts (Python, PowerShell) for log analysis and automation
• Excellent communication, presentation, and documentation skills
• Certifications such as CISSP, CEH, GIAC, Security+ or equivalent preferred
  
  

Responsibilities

• Monitor and analyze security alerts from SIEM, EDR, cloud security tools, and email security platforms
• Conduct investigations into possible security incidents, including email threats and suspicious activities
• Use AI-assisted security tools for threat detection, alert triage, and investigation efficiencies
• Respond to endpoint alerts, contain threats, and document incident details thoroughly
• Collaborate with cybersecurity team members to correlate threat data and validate alerts
• Support vulnerability management and risk assessments
• Assist in implementing and maintaining security policies aligned with NIST CSF, ISO 27001, and ISO 9001 standards
• Participate in incident response efforts and security improvements initiatives
• Maintain up-to-date technical documentation and diagrams
  
  

Benefits

• Significant growth opportunities within a rapidly expanding team
• Certification reimbursement program
• 100% paid medical benefits for employee and dependents
• 4% 401(k) match
• 3 weeks PTO plus 10 holidays, increasing to 4 weeks after one year
• Collaborative, innovative team environment with a strong company culture
  
  

This role is ideal for a motivated security professional eager to leverage their experience in a challenging, growth-oriented setting with excellent perks and development prospects.