Network Security Engineer (L3)

NTT MSC Sdn Bhd; Cyberjaya; On-site; MYR 90,000 - 140,000; Full time

Job summary

NTT DATA is seeking a Network Security Engineer to own enterprise security across identity, cloud, and PKI, including Zero Trust architecture. You will design security architecture, govern enforcement, and drive advanced incident handling and hardening initiatives.

You will lead Entra ID and federation security, architect Zero Trust policies, secure Azure Landing Zone and hybrid connectivity, review CA frameworks, govern PKI, and provide executive security reporting aligned with ISMS.

Qualifications

• Experience designing identity and cloud security architecture.
• Deep knowledge of Azure AD and federation technologies.
• Proven track record in Zero Trust design and enforcement.
• Strong PKI governance and certificate lifecycle management.
• Familiarity with email security, RMS and data protection.

Responsibilities

• Design and govern enterprise identity security architecture.
• Lead Entra ID and federation security strategy.
• Architect and enforce Zero Trust policies.
• Secure Azure Landing Zone and hybrid connectivity.
• Govern ExpressRoute and Private Link data flows.
• Review and approve Conditional Access framework.
• Lead PKI governance and certificate lifecycle strategy.
• Define Microsoft 365 security architecture standards.
• Oversee email security, encryption, and RMS controls.
• Lead advanced threat investigations and root cause analysis.
• Coordinate security incident response at enterprise level.
• Ensure ISMS alignment and governance compliance.

Skills

Identity security

Azure AD Connect

Zero Trust

M365 Security

PKI governance

CyberArk EPM/PAM

Email encryption

Security analytics

Advanced incident handling

Industry frameworks

Tools

MS Identity Manager

LDAP/SAML/OIDC

DigiCert PKI

MS RMS

Job description

Make an impact with NTT DATA
Join a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion – it’s a place where you can grow, belong and thrive.

Position Overview

Owns enterprise security engineering across identity, cloud, messaging, PKI, and Zero Trust architecture. Responsible for security design, governance enforcement, advanced incident handling, and strategic hardening initiatives.

Key Responsibilities

• Design and govern enterprise identity security architecture
• Lead Entra ID and federation security strategy
• Architect and enforce Zero Trust policies
• Secure Azure Landing Zone and hybrid connectivity
• Govern ExpressRoute and Private Link data flows
• Review and approve Conditional Access framework
• Lead PKI governance and certificate lifecycle strategy
• Define Microsoft 365 security architecture standards
• Oversee email security, encryption, and RMS controls
• Lead advanced threat investigations and root cause analysis
• Coordinate security incident response at enterprise level
• Ensure compliance with IT Security Governance Framework
• Define hardening baselines for identity and cloud systems
• Manage CyberArk EPM & PAM and custom connector
• Provide executive-level security reporting
• Drive security improvement roadmap initiatives
• Support audit reviews and compliance assessments
• Mentor L1 and L2 security team members
• Validate new workload onboarding against Zero Trust standards
• Conduct periodic security posture assessments
• Ensure alignment with ISMS and governance policies

Requirements

• Microsoft Identity Manager, Azure AD Connect
• LDAP, SAML, OAuth, OIDC, WS-Fed
• Conditional Access Enforcement & Zero Trust Architecture
• Microsoft 365 Security Architecture & Exchange Online Security
• Trend Micro Email & Cloud App Security, Microsoft RMS
• CyberArk EPM & PAM
• DigiCert Managed PKI, Enterprise Certificate Lifecycle Governance
• Email Encryption & Digital Signing
• Advanced Security Analytics
• Preferred: CISSP, AZ-500, SC-300, SC-200

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 70 countries. We also offer clients access to a robust ecosystem of innovation centers as well as

established and start-up partners. NTT DATA is part of NTT Group, which invests over $3 billion each

year in R&D.

Equal Opportunity Employer

NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category. Join our growing global team and accelerate your career with us.

About our company

NTT Digital Business Solutions offers digital business expertise and capabilities. As a recognized global outsourcing leader, we provide our clients with adaptable, innovative solutions, partnering with them on their digital transformation journey. Through our modern delivery centers, we serve small, medium and large enterprises in the public and private sectors, across industries. Our high-performing teams, broad industry knowledge, extensive partnerships and proven Quality Management System have earned us a successful track record.

NTT Ltd. is a leading global technology services company. We partner with organizations around the world to shape and achieve outcomes through intelligent technology solutions. For us, intelligent means data driven, connected, digital and secure.

As a global ICT provider, we employ more than 40,000 people in a diverse and dynamic workplace that spans 57 countries, trading in 73 countries and delivering services in over 200 countries and regions. Together we enable the connected future.

Visit us at: www.emeriocorp.com or hello.global.ntt

About our company

NTT Digital Business Solutions offers digital business expertise and capabilities. As a recognized global outsourcing leader, we provide our clients with adaptable, innovative solutions, partnering with them on their digital transformation journey. Through our modern delivery centers, we serve small, medium and large enterprises in the public and private sectors, across industries. Our high-performing teams, broad industry knowledge, extensive partnerships and proven Quality Management System have earned us a successful track record.

NTT Ltd. is a leading global technology services company. We partner with organizations around the world to shape and achieve outcomes through intelligent technology solutions. For us, intelligent means data driven, connected, digital and secure.

As a global ICT provider, we employ more than 40,000 people in a diverse and dynamic workplace that spans 57 countries, trading in 73 countries and delivering services in over 200 countries and regions. Together we enable the connected future.

Visit us at: www.emeriocorp.com or hello.global.ntt

What can I earn as a Network Security Engineer