Security Engineer

CornerStone Technology Talent Services; Farmers Branch (TX); On-site; USD 110,000 - 150,000; Full time

Job summary

CornerStone Technology Talent Services seeks Security Engineers for an expanding U.S. security team.

These positions provide hands-on engineering and operational support across endpoint detection and response, email security, vulnerability reporting, and threat intelligence. Engineers will independently configure, troubleshoot, and improve security platforms while turning data into detections, reporting, and actionable findings for incident response and risk reduction.

Qualifications

• Hands-on experience engineering and administering enterprise EDR platforms.
• Ability to independently configure, troubleshoot, and enhance security tools.
• Experience with threat hunting, detection tuning, alert investigation, and security automation.
• Knowledge of email security gateways and DKIM and DMARC.
• Experience working with vulnerability data, dashboards, and security reporting.
• Strong analytical, troubleshooting, and communication skills.
• Ability to work collaboratively across teams and time zones.

Responsibilities

• Configure, administer, and improve enterprise endpoint detection and response platforms.
• Conduct threat hunting and develop repeatable detections, policies, and automated workflows.
• Improve security telemetry, alert quality, and escalation accuracy.
• Investigate security events and support incident response activities.
• Administer email security gateway policies, rules, and authentication controls.
• Develop and improve vulnerability dashboards and reports.
• Coordinate incident and operational handoffs with international teams.
• Collaborate with infrastructure teams and security technology vendors.

Skills

EDR platforms

Threat hunting

Security automation

Email security

Vulnerability dashboards

Security reporting

Analytical skills

Communication

Team collaboration

Troubleshooting

Incident response

Tools

SentinelOne

CrowdStrike

Email security gateways

Vulnerability assessment platforms

Job description

CornerStone Technology Talent Services is seeking Security Engineers for an organization expanding its U.S. security team. These positions will provide hands-on engineering and operational support across endpoint detection and response, email security, vulnerability reporting, and threat intelligence.

We are looking for engineers who can independently configure, troubleshoot, and improve security platforms while turning security data into useful detections, reporting, and actionable findings.

Key Responsibilities

• Configure, administer, and improve enterprise endpoint detection and response platforms.
• Conduct threat hunting and develop repeatable detections, policies, and automated workflows.
• Improve security telemetry, alert quality, and escalation accuracy.
• Investigate security events and support incident response activities.
• Administer email security gateway policies, rules, and authentication controls.
• Develop and improve vulnerability dashboards and reports.
• Support vulnerability visibility across endpoints, servers, cloud environments, and agentless assets.
• Investigate cyber threat intelligence and elevate relevant findings.
• Document configurations, engineering changes, and operational procedures.
• Coordinate incident and operational handoffs with international teams.
• Collaborate with infrastructure teams and security technology vendors.

Required Qualifications

• Hands-on experience engineering and administering enterprise EDR platforms.
• Ability to independently configure, troubleshoot, and enhance security tools.
• Experience with threat hunting, detection tuning, alert investigation, and security automation.
• Knowledge of email security gateways and authentication protocols, including DKIM and DMARC.
• Experience working with vulnerability data, dashboards, and security reporting.
• Strong analytical, troubleshooting, and communication skills.
• Ability to work collaboratively across teams and time zones.
• Availability to work onsite in Farmers Branch five days per week.

Preferred Qualifications

• Experience with SentinelOne, CrowdStrike, or comparable enterprise EDR platforms.
• Experience with enterprise email security gateways.
• Experience administering vulnerability assessment and reporting platforms.
• Familiarity with cyber threat intelligence tools and investigations.
• Experience supporting security across cloud and on-premises environments.

Schedule

These positions support U.S. business hours. Additional availability may be required during security incidents and for occasional evening meetings with international teams or technology vendors.

About the Search

This search is being conducted confidentially. Additional company and organizational details will be shared during the recruiting process.