End User Services – Digital Workplace Security Engineer at NTT Ltd

Key Responsibilities

Security Engineering & Governance

• Implement and maintain security baselines across identity, endpoints, messaging, data, and collaboration workloads (Microsoft Security Baselines, CIS Benchmarks).
• Deploy, configure, and operationalize: Microsoft Defender XDR, Defender for Cloud (cloud & hybrid posture management), Microsoft Sentinel (SIEM/SOAR operations and automation).
• Develop, tune, and maintain: SIEM/SOAR use cases, Detection rules, KQL-based analytics, Automation playbooks.
• Lead security incident investigations from detection, containment, root-cause analysis and remediation across identity, endpoints, messaging, and email security.
• Implement and maintain Microsoft Purview governance controls: Retention & records management, eDiscovery (Standard & Premium), Audit & Insider Risk, Information Protection & DLP.

Modern Workplace Architecture & Engineering

• Design secure architectures across: Entra ID, AD DS, hybrid identity, Intune & ManageEngine Endpoint Central, Conditional Access, Zero Trust policies, Role-based access & identity governance.
• Architect secure and resilient messaging solutions: Exchange Online & Exchange Server, Mimecast (email security, threat protection, continuity)
• Lead implementation and modernization projects including:
• Identity hardening & MFA/Conditional Access modernization
• Endpoint standardization (security baselines, configuration policies)
• Migration projects (identity, email, device, security platforms)
• Defender XDR and SIEM modernization
• ManageEngine platform rollout and optimization
• Conduct technical health checks, configuration assessments, risk evaluations, and environment hardening across all EUS technologies. undefined

Escalation, Operations & Service Reliability

• Serve as L3/L4 escalation authority for complex security, identity, endpoint, messaging, and cloud incidents.
• Ensure SLA compliance for P1/P2 incidents through advanced troubleshooting and root-cause analysis.
• Maintain operational reliability, security posture, and performance across all Digital Workplace platforms.
• Drive continuous improvement cycles to enhance availability, compliance alignment, and threat resilience.
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Presales, Advisory & Client Engagement

• Lead security-focused presales engagements including workshops, assessments, PoCs, and RFP technical responses.
• Produce secure, scalable solution architectures aligned with Microsoft security frameworks (Zero Trust, MCRA frameworks).
• Translate business risks and compliance requirements into actionable technical designs.
• Act as a trusted advisor on:
• Cyber posture improvement
• Microsoft security & compliance adoption
• Governance & data protection
• Workplace modernization strategies
• Participate in account planning with pre-sales teams.

KNOWLEDGE, SKILLS & ATTRIBUTES

Technical Competencies

• Strong experience with Microsoft Sentinel, SIEM/SOAR, and threat detection methodologies.
• Expertise across M365, Entra ID, AD DS, Intune, ManageEngine, Exchange, and email security platforms.
• Hands‑on experience with incident response, KQL, PowerShell, Python, and investigative analysis processes.
• Deep understanding of identity security, endpoint protection, hybrid identity, and Microsoft security stack.

​​​​​​​PROFESSIONAL ATTRIBUTES

• Excellent communication, documentation, and stakeholder‑management skills.
• Able to translate complex security concepts for non‑technical audiences.
• Strong analytical mindset, detail‑oriented, and able to work in high‑pressure environments.
• Highly collaborative with cross‑functional teams (support, sales, presales, engineering).

QUALIFICATIONS & EXPERIENCE

• Bachelor’s degree in IT, Computer Science, Information Systems, or related field.
• 5+ years experience in cybersecurity, security operations, Modern Workplace engineering, or identity management.
• Prior experience in enterprise IT environments, SOC operations, or security engineering.
• Hands‑on experience architecting and supporting Modern Workplace technologies.