Senior Cybersecurity Engineer

Quantum Technologies LLC; Denver (CO); On-site; USD 97,000 - 138,000; Full time

Job summary

Quantum Technologies. LLC is seeking a Senior Cybersecurity Engineer to lead security initiatives, strengthen enterprise security, and protect critical systems across on‑prem, hybrid, and cloud environments.

You will design advanced security solutions, manage security operations, and collaborate with infrastructure, DevOps, and compliance teams to maintain a strong security posture.

Responsibilities

• Lead design, implementation, and maintenance of enterprise cybersecurity solutions.
• Develop and enforce security policies, standards, procedures, and technical controls.
• Monitor enterprise infrastructure for security threats, suspicious activities, and potential vulnerabilities.
• Lead security incident response activities, including investigation, containment, remediation, and recovery.
• Perform advanced threat analysis, risk assessments, and vulnerability management across enterprise environments.
• Design and implement security architectures for on-premises, hybrid, and cloud-based infrastructure.
• Manage and optimize SIEM platforms for security monitoring, event correlation, and threat detection.
• Implement endpoint detection and response solutions to identify and mitigate advanced security threats.

Skills

Threat intelligence

Security architecture

Vulnerability management

Cloud security

Incident response

IAM

PAM

SIEM

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Job Title: Senior Cybersecurity Engineer

Duration: 9 Months + Extension

Bill Rate: $85/hour (C2C)

Job Type: W-2, 1099, C2C

Client: To Be Discussed Later

Work Authorization: US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, Other

Job Summary:

We are looking for a highly skilled Senior Cybersecurity Engineer to lead security initiatives, strengthen enterprise security infrastructure, and protect critical business systems from evolving cyber threats. The ideal candidate should have deep technical expertise in threat intelligence, security architecture, vulnerability management, cloud security, and incident response. The role involves designing advanced security solutions, managing complex security operations, and collaborating with enterprise teams to maintain a strong security posture.

Roles & Responsibilities:

• Lead the design, implementation, and maintenance of enterprise-wide cybersecurity solutions.
• Develop and enforce security policies, standards, procedures, and technical controls.
• Monitor enterprise infrastructure for security threats, suspicious activities, and potential vulnerabilities.
• Lead security incident response activities, including investigation, containment, remediation, and recovery.
• Perform advanced threat analysis, risk assessments, and vulnerability management across enterprise environments.
• Design and implement security architectures for on-premises, hybrid, and cloud-based infrastructure.
• Manage and optimize SIEM platforms for security monitoring, event correlation, and threat detection.
• Implement endpoint detection and response solutions to identify and mitigate advanced security threats.
• Oversee firewall configurations, network segmentation, intrusion prevention, and access control mechanisms.
• Lead IAM and PAM initiatives, including privileged access governance and authentication management.
• Conduct security assessments, penetration testing reviews, and remediation planning.
• Establish security monitoring strategies and develop incident response playbooks.
• Work with cloud security services across AWS, Azure, and Google Cloud environments.
• Ensure compliance with industry security frameworks, regulatory requirements, and internal governance policies.
• Collaborate with infrastructure, DevOps, application development, and compliance teams to address security risks.
• Guide security engineers and technical teams in implementing security best practices.
• Evaluate emerging cybersecurity technologies and recommend improvements to enterprise security operations.
• Prepare executive-level security reports, risk assessments, and technical documentation.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.