Senior CyberSecurity Engineer - Threat & Cloud Defender

Quantum Technologies. LLC; The Woodlands (TX); On-site; USD 83,000 - 117,000; Full time

Job summary

Quantum Technologies. LLC in the United States seeks a Sr. Level CyberSecurity Engineer to lead advanced security operations, incident response, and threat hunting across enterprise environments.

The role focuses on securing cloud and on‑premises assets, managing MSSP collaborations, and tuning tools such as Palo Alto firewalls, CrowdStrike EDR, Proofpoint Email Security, and SIEM platforms. Ideal candidates have 5+ years of hands-on cybersecurity experience and strong communication skills to

Qualifications

• 5+ years of hands-on experience in cybersecurity roles.
• Strong experience inter-operating with MSSPs, third-party security vendors, and/or clients.
• Solid understanding of network security, endpoint protection, and cloud security principles.
• Strong analytical and problem-solving skills.
• Excellent communication and documentation abilities.

Responsibilities

• Act as a Tier 3 escalation point for security incidents and investigations.
• Manage and optimize security tools and platforms across the enterprise.
• Create, review, and troubleshoot Palo Alto Next-Gen Firewall rulesets.
• Administer and monitor CrowdStrike EDR and Proofpoint Email Security solutions.
• Operate and fine-tune SIEM platforms, including alert use case creation and optimization.
• Leverage Microsoft Cloud Security Tools to secure cloud environments.
• Lead the Vulnerability Management program, including scanning, prioritization, remediation coordination, and reporting.
• Collaborate with and delegate tasks to MSSPs, ensuring SLAs and quality standards are met.
• Conduct threat hunting, vulnerability assessments, and risk analysis.
• Develop and maintain security documentation, runbooks, and incident response procedures.
• Stay current with emerging threats, vulnerabilities, and regulatory requirements.

Skills

Tier 3 escalation handling

Security incident response

Cloud security

SIEM tooling

Threat hunting

Tools

Palo Alto Next-Gen Firewall

CrowdStrike EDR

Proofpoint Email Security

Microsoft Defender for Endpoint

Defender for Identity

Purview

SIEM platforms

Job description

Quantum Technologies. LLC in the United States seeks a Sr. Level CyberSecurity Engineer to lead advanced security operations, incident response, and threat hunting across enterprise environments.

The role focuses on securing cloud and on‑premises assets, managing MSSP collaborations, and tuning tools such as Palo Alto firewalls, CrowdStrike EDR, Proofpoint Email Security, and SIEM platforms. Ideal candidates have 5+ years of hands-on cybersecurity experience and strong communication skills to