Messaging Services Senior Specialist
Apply now »Date: Oct 22, 2026
Location: Noida, UP, IN
Company: NTT DATA Services
Role and Responsibilities:
• Malware & Phishing Defense: Manage Cisco Talos threat intelligence feeds to block spam, viruses, and malicious attachments. Utilize Advanced Malware Protection (AMP) for file reputation and sandboxing.
• Connection & Reputation Filtering: Adjust IP, domain, and sender reputation parameters to drop malicious connection attempts.• Outbreak Filters: Configure real-time outbreak rules to protect against new, zero-day threat campaigns
• Content Filtering: Create custom message filters to block specific file types, strip harmful scripts, or enforce company-wide disclaimers
• Data Loss Prevention (DLP): Set up policies to scan outbound traffic and prevent the leakage of sensitive data (e.g., PII, financial information)
• Domain Security: Enforce Sender Policy Framework (SPF), DomainKeys Identified Mail (DKIM), and Domain-based Message Authentication, Reporting, and Conformance (DMARC) to prevent domain spoofing
• Message Tracking & Analytics: Track message dispositions, investigate delivery failures, and generate executive reports on threat trends using centralized management dashboards
• Quarantine Management: Review, release, or delete quarantined emails, and address false positives to prevent business disruption
• Monitor Sender Ecosystem: Regularly review Valimail Monitor or Enforce reports to identify and track all third-party services sending emails on your domain's behalf
• Monitoring & Visibility: Review the Valimail Monitor dashboard to identify unapproved third-party services and unauthorized IP addresses
• Monitor system performance, conduct root cause analysis, and implement corrective actions for email security incidents.
• Manage configuration, upgrades, and patching for Cisco Secure Email and Valimail environments.
• Collaborate with IT security, compliance, and infrastructure teams to maintain optimal email security posture.
• Develop and update technical documentation, standard operating procedures, and knowledge base articles.
• Participate in security audits, support incident response activities, and assist with email threat investigations.
• Plan and Coordinate with the vendor for regular health checks and implement vendor recommendations
• Provides deep subject matter expertise, advice and program delivery.
• Support 24x7 steady state operations-Flexible working in US business hours for all required work done and during weekends.
• Performs root cause analysis on failed components and implements corrective measures.
• Candidates must have exceptional customer service, problem solving, and communication skills
• Possess the ability to work independently with minimal management supervision and with a global team of engineers
Technical Skillset:
• Bachelor’s degree in computer science, Information Technology, or related field.• 5+ years of experience in Proofpoint Email security Solution.
• Strong hands-on experience with Cisco Secure Email (formerly Cisco Email Security Appliance/ESA) and Valimail.
• Proficiency in email protocols (SMTP, IMAP, POP3) and email authentication standards (SPF, DKIM, DMARC).
• Solid understanding of networking, firewalls, and security best practices.
• Excellent analytical, troubleshooting, and communication skills
Job Segment:
Cisco, Computer Science, Technology