Job Description

Key Responsibilities

Serve as the primary point of contact for client email and messaging security initiatives Lead design, deployment, and ongoing operations of

Tessian, Proofpoint, and Mimecast

Provide security advisory and best-practice recommendations aligned to client risk and business needs Own email security architecture across Microsoft 365 / Exchange Online Lead investigation and response for high-severity email threats (phishing, impersonation, BEC) Drive policy tuning, threat intelligence integration, and false-positive reduction Present security posture, metrics, and improvement plans to client stakeholders Coordinate with client SOC, IT, and Compliance teams to align processes and escalations Mentor delivery resources and ensure adherence to agreed SLAs and standards Support audits, risk assessments, and client security reviews. Work with IT Ops and Incident Response teams on email security and threat monitoring. Manage users and groups in Entra ID, document policies for Mimecast and Tessian, and assist in evaluating new email and DLP solutions.

Required Skills & Experience

7+ years of experience in Cybersecurity, with strong focus on Email/Messaging Security Hands-on experience with

Tessian, Proofpoint, and/or Mimecast

Strong knowledge of: Phishing, social engineering, and BEC threats Email authentication (SPF, DKIM, DMARC) DLP and user behavior analytics Experience securing Microsoft 365 / Exchange Online environments Proven ability to communicate technical risks to non-technical client stakeholders Strong documentation and presentation skills Experience in consulting or managed security services (MSSP) SIEM/SOAR integrations (Splunk, Sentinel, QRadar) Security certifications: CISSP, CISM, CCSP, Security+ * Experience supporting regulated enterprise clients