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Senior Security Engineer (Boston)
Senior Security Engineer (Boston)Henderson Scott • Boston, MA, United States
Senior Security Engineer (Boston)

Senior Security Engineer (Boston)

Henderson Scott • Boston, MA, United States
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  • [job_card.full_time]
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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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