Req ID: 394531
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, apply now.
We are currently seeking a Security Center Operations Specialist to join our team in Noida, Uttar Pradesh (IN-UP), India (IN).
Email Security Engineer – Job Description
Job Title
Email Security Engineer
Job Summary
The Email Security Engineer is responsible for the administration, security, availability, monitoring, and operational management of enterprise email security platforms. This role ensures the protection of corporate email systems against phishing, malware, spam, business email compromise (BEC), spoofing, and other email-based threats while maintaining platform stability and service availability.
The engineer will work closely with Account Security Team, NTT Operations Teams, OEM vendors, and infrastructure teams to resolve technical issues, implement security controls, enforce security policies, and provide operational and security reporting. The role also supports continuous improvement of email security capabilities, threat protection, and service reliability.
Key Responsibilities
Email Security Platform Management
- Administer and maintain enterprise email security platforms and services.
- Ensure high availability, performance, and operational health of email security infrastructure.
- Monitor email security gateways, cloud email security solutions, and supporting systems.
- Manage platform configurations, upgrades, patches, and lifecycle activities.
- Support capacity planning, performance tuning, and operational optimization.
Platform Availability & Operational Management
- Monitor platform availability and service health to ensure compliance with agreed SLAs.
- Investigate service outages, mail flow issues, delivery delays, and system performance concerns.
- Coordinate incident resolution activities across multiple operational teams.
- Support disaster recovery and business continuity processes related to email security platforms.
- Maintain operational runbooks and standard operating procedures.
Email Threat Protection & Security Operations
- Monitor and respond to:
- Phishing attacks
- Business Email Compromise (BEC)
- Malware campaigns
- Spoofing attempts
- Email-borne threats
- Investigate email security incidents and coordinate remediation activities.
- Support implementation of:
- SPF
- DKIM
- DMARC
- Anti-phishing controls
- Email encryption controls
- Analyze email security trends and recommend improvements.
OEM Vendor Coordination
- Coordinate with OEM vendors to resolve product defects, technical issues, software bugs, and platform-related security concerns.
- Manage vendor escalations for critical incidents and service disruptions.
- Review vendor advisories, product updates, and security bulletins.
- Participate in vendor troubleshooting sessions and technical reviews.
- Track vendor action plans and remediation timelines.
Security Policy Enforcement
- Enforce security policies, standards, and controls as requested by the Account Security Team.
- Implement email security controls in alignment with organizational security requirements.
- Ensure compliance with approved security baselines and governance requirements.
- Support security exception reviews and risk mitigation activities.
- Validate policy compliance across email security environments.
Reporting & Metrics
- Generate security and operational reports mutually agreed with the Account Team.
- Develop dashboards and metrics related to:
- Email threat activity
- Phishing detection rates
- Malware detection statistics
- Platform availability
- SLA performance
- Incident response metrics
- Mail flow performance
- Present operational and security posture reports to stakeholders.
Continuous Improvement
- Identify opportunities to improve email security controls and operational efficiency.
- Support automation initiatives for email threat investigation and response.
- Improve phishing detection and response capabilities.
- Recommend enhancements to platform resilience and monitoring.
- Contribute to Email Security Program maturity initiatives.
Required Qualifications
Education
- Bachelor's degree in Cyber Security, Information Technology, Computer Science, or related discipline.
- Equivalent professional experience may be considered.
Experience
Mid-Level Engineer
- 3–5 years of experience supporting enterprise email security platforms.
Senior Engineer
- 5–8 years of experience in Email Security Engineering, Messaging Security, or Security Operations.
Technical Skills
Email Security Platforms
Experience with one or more:
- Microsoft Defender for Office 365
- Microsoft Exchange Online Protection (EOP)
- Proofpoint
- Mimecast
- Cisco Secure Email
- Barracuda Email Security Gateway
- Google Workspace Security
Email Authentication Technologies
Strong knowledge of:
- SPF
- DKIM
- DMARC
- SMTP
- Email routing and mail flow
Security Operations
- Phishing investigation
- Malware analysis
- Threat detection
- Incident response
- Security monitoring
- Email threat hunting
Cloud & Messaging Technologies
- Microsoft 365
- Exchange Online
- Azure AD / Entra ID
- Google Workspace
- Hybrid Email Environments
Monitoring & Reporting
- SIEM platforms (Splunk, Sentinel, QRadar)
- Dashboard creation
- Operational reporting
- SLA monitoring
Preferred Certifications
Security Certifications
- CompTIA Security+
- CompTIA CySA+
- CISSP
- GSEC
- GCIH
Microsoft Certifications
- Microsoft SC-200
- Microsoft SC-300
- Microsoft MS-102
- Microsoft Security Operations Analyst
Vendor Certifications
- Proofpoint Certified Professional
- Mimecast Certified Engineer
- Microsoft 365 Security Certifications
Desired Competencies
- Strong troubleshooting and problem-solving skills
- Experience coordinating across multiple support teams
- Vendor management and escalation experience
- Strong communication and stakeholder management skills
- Ability to work in high-availability enterprise environments
- Strong reporting and documentation capabilities
- Risk-based decision-making and prioritization
Sample Day-to-Day Activities
- Monitor email security dashboards and platform health.
- Investigate phishing and email security incidents.
- Coordinate with OEM vendors for issue resolution and product support.
- Review and implement email security policy updates.
- Manage mail flow and platform availability issues.
- Track remediation activities and service restoration efforts.
- Generate weekly and monthly security and operational reports.
- Conduct email threat trend analysis.
- Participate in governance and security review meetings.
Interview Questions for This Role
Email Security
- Explain how SPF, DKIM, and DMARC work together.
- How would you investigate a Business Email Compromise (BEC) incident?
- What controls would you implement to reduce phishing risk?
Platform Management
- How do you troubleshoot email delivery failures?
- How would you handle an email security platform outage?
OEM Coordination
- Describe a situation where you worked with a vendor to resolve a critical issue.
- How do you manage vendor escalations during service disruptions?
Security Governance
- How do you enforce email security policies across an organization?
- What would you do if a business unit requested an exception to email security controls?
Reporting
- What email security KPIs would you report to leadership?
- How would you measure the effectiveness of phishing protection controls?
Operational Support
- How do you monitor platform availability and service health?
- What metrics would you track to ensure SLA compliance?
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,
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