Job Description

Senior Security Engineer (US)

Location: Hybrid / Remote NJ, CT, NC, MA, PA, VA, MD, DC, FL

• New York & Boston candidates : Office-based
• Other listed states : Remote employees considered
• Contract: Full-time, Hybrid / Flexible | 35-hour week
• Salary: $175,000 base + 15% bonus

Overview

We are seeking a hands-on, senior security engineer to proactively strengthen our security posture across cloud-native and hybrid environments . This highly technical, strategic role will lead security platform integration, governance, threat detection, and mentoring, while influencing security-first practices across the organisation.

Key Responsibilities

Security Architecture & Engineering

• Lead integration and optimisation of Zscaler , Wiz ( EDR/CSPM/CNAPP ), and endpoint protection ( EDR/XDR ) to maximise prevention, detection, and response.
• Develop detection rules and manage analytics in Microsoft Sentinel and Wiz .
• Conduct proactive threat hunting, posture management, and remediation validation.
• Administer Zscaler Internet Access (ZIA) , including policy tuning, SSL inspection, forwarding profiles, and authentication flows.
• Troubleshoot traffic flows and collaborate with DevOps , IT, and R&D to integrate security into CI/CD pipelines and infrastructure-as-code.

Compliance, Audit & Governance

• Ensure compliance with NIST SP 800-53 , NIST SP 800-171 , SOC 2 , ISO/IEC 27001:2022 , and client-specific requirements.
• Lead audits, penetration testing, and maintain continuous audit readiness.

Security Operations & Incident Response

• Develop, tune, and manage detection rules and playbooks across Wiz , Zscaler , and other platforms aligned with MITRE ATT&CK .
• Hunt threats, triage alerts, and lead incident investigations.
• Manage advanced email security with Microsoft Defender for Office 365 .
• Drive automation and orchestration initiatives to improve operational efficiency.

Stakeholder Engagement & Leadership

• Act as a technical advisor on Zero Trust , cloud security, and operations.
• Mentor junior staff and foster a security-first culture .
• Communicate complex security concepts clearly to technical and non-technical stakeholders, including senior leadership.

Mandatory Platform Expertise

• GitGuardian
• CyberHaven
• Wiz Advanced & Defend
• Zscaler
• Email Security (various platforms)

Education & Preferred Certifications

• Masters degree in Information Security , Computer Science , or related field.
• GIAC certifications: GCIA , GCED , GCIH , GDAT , GDSA , GMON
• Microsoft Cloud Security certifications: AZ-500 , AZ-305 , SC-300

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