Email Security Lead

Tekskills Inc.; Mumbai; On-site; INR 1,500,000 - 2,700,000; Full time

Job summary

Tekskills Inc. is seeking an experienced email security expert to lead Mimecast operations and advanced threat protection. The role focuses on configuring DKIM/DMARC/SPF, sandboxing policies, and impersonation protection to block phishing and malware across the organization.

You will drive incident response, coordinate with IT and IR teams, and develop weekly threat trend reports while ensuring regulatory hygiene and alignment with audits.

Qualifications

• 8+ years in email and perimeter security; 4+ years leading Mimecast security operations.
• Advanced knowledge of MIME filtering, encryption, DKIM/DMARC/SPF, sandboxing, and impersonation protection.
• Exposure to ISO 27001, RBI/SEBI compliance reporting.

Responsibilities

• Manage and continuously improve Mimecast Email Security implementation to prevent phishing, spoofing, and malware threats targeting users.
• Establish advanced filtering, impersonation protection, and attachment sandboxing policies per risk-based user segmentation.
• Ensure email routing, journaling, and DKIM/DMARC/SPF configurations are aligned with compliance and audit requirements.
• Monitor and resolve advanced email threats, perform RCA on false negatives/positives, and lead remediation for targeted phishing attacks.
• Integrate email security events into SIEM for correlation with identity and endpoint telemetry for improved incident detection.
• Develop reporting templates for weekly threat trends and support governance teams with compliance submissions.
• Provide guidance on BEC protection, email content control, and mailbox behavior analytics.
• Lead simulation testing, phishing campaign exercises, and user awareness metrics for ongoing posture improvements.
• Collaborate with IT and IR teams to drive end-to-end containment and recovery of email-borne incidents.
• Define operational baselines, tune policies, and manage escalations from SOC analysts and internal stakeholders.

Skills

Email security

Perimeter security

Mimecast security operations

DKIM/DMARC/SPF

Impersonation protection

Mail routing

Education

Mimecast Certified Specialist

Tools

Mimecast

M365/Exchange Online

Job description

Job Summary

The position demands expert-level command over advanced email security controls such as sandboxing, DMARC, threat intelligence integration, and user awareness. The individual is expected to drive continuous improvements, incident response handling, and regulatory email security hygiene.

Key Responsibilities

• Manage and continuously improve Mimecast Email Security implementation to prevent phishing, spoofing, and malware threats targeting users.
• Establish advanced filtering, impersonation protection, and attachment sandboxing policies per risk-based user segmentation.
• Ensure email routing, journaling, and DKIM/DMARC/SPF configurations are aligned with compliance and audit requirements.
• Monitor and resolve advanced email threats, perform RCA on false negatives/positives, and lead remediation for targeted phishing attacks.
• Integrate email security events into SIEM for correlation with identity and endpoint telemetry for improved incident detection.
• Develop reporting templates for weekly threat trends and support governance teams with compliance submissions.
• Provide guidance on BEC protection, email content control, and mailbox behavior analytics.
• Lead simulation testing, phishing campaign exercises, and user awareness metrics for ongoing posture improvements.
• Collaborate with IT and IR teams to drive end-to-end containment and recovery of email-borne incidents.
• Define operational baselines, tune policies, and manage escalations from SOC analysts and internal stakeholders.

Key Skills & Certifications

• 8+ years in email and perimeter security; 4+ years leading Mimecast security operations.
• Advanced knowledge of MIME filtering, encryption, DKIM/DMARC/SPF, sandboxing, and impersonation protection.
• Mimecast Certified Specialist or equivalent certifications preferred.
• Exposure to ISO 27001, RBI/SEBI compliance reporting.
• Strong understanding of mail routing, M365, Exchange Online integration.