**Job Description: Position Summary** The Senior Security Engineer is responsible for the architecture, implementation, administration, optimization, and continuous improvement of the organization's cybersecurity technology stack. This role serves as the technical owner and subject matter expert for endpoint security, secure access, vulnerability management, cloud security, email security. The engineer partners closely with Infrastructure, Cloud, Network, Identity, Application Development, SOC, Compliance, and third-party vendors to ensure security controls are effectively deployed, monitored, and maintained across the enterprise. Role Responsibilities: Security Platform Ownership Act as the primary technical owner for:

• SentinelOne EDR/XDR

Zscaler Internet Access (ZIA) Zscaler Private Access (ZPA) Rapid7 Microsoft Azure Security Services Google Cloud Platform (GCP) Security Proofpoint Email Security Suite CSPM Cloud Security Platform ReliaQuest GreyMatter Platform Engineering & Operations

• Design, implement, and maintain enterprise security controls.

Develop security standards, baselines, and operational procedures. Lead upgrades, integrations, and platform optimization initiatives. Manage vendor relationships and support escalations. Develop automation and orchestration opportunities. Create dashboards, metrics, and executive reporting. Cloud Security

• Design and maintain security controls for Azure and GCP environments.

Implement cloud-native monitoring, posture management, and threat detection. Utilize CSPM solutions to identify and remediate cloud risks. Collaborate with cloud engineering teams to secure new deployments. Vulnerability Management

• Own the vulnerability management lifecycle using Rapid7.

Conduct risk-based prioritization and remediation tracking. Coordinate with infrastructure and application teams on remediation efforts. Report remediation performance against established SLAs. Endpoint Security

• Administer and optimize SentinelOne policies and detections.

Lead threat containment, investigation support, and endpoint hardening activities. Evaluate endpoint security effectiveness and recommend improvements. Secure Access & Zero Trust

• Manage Zscaler ZIA and ZPA policies, integrations, and access controls.

Support Zero Trust initiatives and secure remote access programs. Collaborate with Identity teams on SSO, MFA, and privileged access integrations. Email & User Protection

• Manage Proofpoint email security controls.

Develop anti-phishing and email threat protection strategies. Investigate and respond to email-based threats. Incident Response & SOC Support

• Support security incident investigations and forensic activities.

Develop and maintain runbooks and response procedures. Conduct threat hunting and proactive detection activities. Work closely with ReliaQuest analysts and MDR resources. Security Architecture

• Evaluate new technologies and security requirements.

Participate in design reviews for infrastructure, applications, and cloud solutions. Recommend compensating controls and risk mitigation strategies Required Qualifications:

• 7+ years of cybersecurity engineering experience.

5+ years supporting enterprise security platforms. Strong experience with: o SentinelOne o Zscaler ZIA/ZPA o Rapid7 o Azure o GCP o Proofpoint Experience with cloud security architecture and Zero Trust principles. Strong knowledge of networking, identity management, and enterprise infrastructure. Preferences CISSP, Key Competencies Security Architecture Cloud Security Vulnerability Management Threat Detection & Response Zero Trust Security Executive Communication Vendor Management Automation & Integration Project Leadership Risk-Based Decision Making ________________________________________ Success Measures Endpoint protection coverage Cloud security posture improvements Reduction in critical security findings Security platform uptime and effectiveness Successful delivery of security projects and integrations About NTT DATA NTT DATA is a $30 billion trusted global innovator of business and technology services. We serve 75% of the Fortune Global 100 and are committed to helping clients innovate, optimize and transform for long term success. As a Global Top Employer, we have diverse experts in more than 50 countries and a robust partner ecosystem of established and start-up companies. Our services include business and technology consulting, data and artificial intelligence, industry solutions, as well as the development, implementation and management of applications, infrastructure and connectivity. We are one of the leading providers of digital and AI infrastructure in the world. NTT DATA is a part of NTT Group, which invests over $3.6 billion each year in R&D to help organizations and society move confidently and sustainably into the digital future. Visit us at us.nttdata.com NTT DATA provides a reasonable range of compensation for U.S.-based positions. The starting pay range for this remote role is 90$/hr -100$/hr . This range reflects the minimum and maximum target compensation for the position across all US locations. Actual compensation will depend on a number of factors, including the candidate's actual work location, relevant experience, technical skills, and other qualifications. This position is eligible for company benefits including participation in medical, dental, and vision insurance, flexible spending or health savings account, and AD&D insurance, employee assistance, participation in a 401k program, and additional voluntary or legally-required benefits NTT DATA endeavors to make https://us.nttdata.com accessible to any and all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please contact us at https://us.nttdata.com/en/contact-us. 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.