Messaging Services Senior Specialist

NTT DATA North America; Dadri; On-site; INR 3,000,000 - 5,400,000; Full time

Job summary

NTT DATA invites a Messaging Services Senior Specialist to join our Noida team. You will leverage Proofpoint Email Security, Cisco Secure Email and Valimail to protect enterprise email infrastructure.

The role requires hands-on security tooling, strong problem solving, and collaboration with global teams. You will monitor threat intelligence, implement DLP, and enforce SPF/DKIM/DMARC while maintaining compliance.

Qualifications

• Bachelor's degree in Computer Science, IT or related field.
• 10+ years of experience with Proofpoint Email security Solution.
• Hands-on with Cisco Secure Email and Valimail.
• Proficient in SMTP/IMAP/POP3 and SPF/DKIM/DMARC.
• Strong networking knowledge and security best practices.
• Excellent analytical, troubleshooting and communication skills.

Responsibilities

• Manage Cisco Talos threat intel feeds and AMP for file reputation and sandboxing.
• Tune IP, domain and sender reputation parameters to drop malicious traffic.
• Configure real-time outbreak rules to protect against zero-day campaigns.
• Create content filters to block file types and enforce disclaimers.
• Set up DLP policies to prevent leakage of sensitive data.
• Enforce SPF, DKIM, DMARC to prevent domain spoofing.
• Track dispositions and generate threat-trend reports for executives.
• Review quarantined emails and address false positives.
• Monitor third‑party senders and unauthorized IPs on your domain.
• Coordinate vendor health checks and patching for security tools.
• Develop documentation, SOPs and knowledge base articles.
• Support incident response activities and email threat investigations.
• Provide subject matter expertise and program delivery.
• Operate 24x7 with flexible US hours and weekend coverage.

Skills

Customer service

Problem solving

Communication skills

Independent work

Team collaboration

Education

Bachelor's degree in Computer Science/Information Technology

Tools

Proofpoint Email Security Solution

Cisco Secure Email

Valimail

Job description

NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization,

We are currently seeking a Messaging Services Senior Specialist to join our team in Noida, Uttar Pradesh (IN-UP), India (IN).

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.
• 10+ 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

About NTT DATA

NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D.

Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client’s needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in-office attendance may be required for meetings or events, depending on business needs.

At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com, @nttdatafed.com and @talent.nttdataservices.com email addresses. If you are requested to provide payment or disclose banking information, please submit a contact us form, https://us.nttdata.com/en/contact-us.

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This contact information is for accommodation requests only and cannot be used to inquire about the status of applications. NTT DATA is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. For our EEO Policy Statement, please click here. If you'd like more information on your EEO rights under the law, please click here. For Pay Transparency information, please click here.