Senior Security Engineer

Endurance IT Services • Reston, VA

34d • $110,000 - $125,000 • Onsite

About The Position

Endurance IT Services is seeking a Senior Security Engineer to design, implement, and maintain enterprise security solutions that protect systems, data, and users. The role combines security engineering, incident response, technical leadership, and cross-functional collaboration to strengthen the organization's overall security posture. This is a direct-hire, onsite position in Reston, Virginia.

Requirements

• At least 5 years of experience designing, implementing, and administering enterprise security solutions.
• Strong expertise in areas such as endpoint security, vulnerability management, cloud security, Microsoft 365 security, encryption, logging, and threat management.
• Experience with incident response, root cause analysis, and remediation activities.
• Knowledge of security controls, standards, compliance frameworks, and audit processes.
• Strong analytical, troubleshooting, documentation, and communication skills.
• Ability to work independently while collaborating effectively across technical and business teams.

Nice To Haves

• Bachelor's degree in Cybersecurity, Information Technology, Computer Science, Engineering, or a related field, or equivalent experience.
• Security certifications such as CISSP, CISA, GIAC, Security+, Microsoft Security, or similar credentials.
• Experience with Azure, Microsoft 365, SIEM platforms, network security, vulnerability management, endpoint protection, and enterprise security operations.
• Experience working in a regulated or large-scale enterprise IT environment.

Responsibilities

• Design, implement, and support enterprise security tools and services across endpoint, cloud, email, network, and identity security domains.
• Monitor security alerts, logs, and telemetry to identify threats, vulnerabilities, and opportunities for improvement.
• Ensure security platforms are properly configured, patched, and aligned with established security standards.
• Support incident response activities, including investigation, containment, remediation, and post-incident reviews.
• Partner with IT and project teams to integrate security requirements into system designs and technology initiatives.
• Assist with audits, compliance efforts, documentation, policies, standards, and operational runbooks.
• Research emerging threats and technologies and recommend security enhancements.
• Lead or contribute to security projects while providing technical guidance to peers and stakeholders.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed