Security Network Engineer – Cloud Migration Job at NTT DATA (Singapore)

Job Responsibility

Implement firewall rule changes to support migration activities and ongoing operations
Configure and manage network security devices (e.g., Fortigate, Palo Alto)
Support hybrid connectivity setup including VPN and ExpressRoute configurations
Implement network segmentation and micro-segmentation strategies
Enforce enterprise security policies and compliance requirements across environments
Support secure connectivity between on-premise and Azure environments
Configure and manage Azure networking components (VNets, NSGs, route tables, load balancers)
Implement and maintain secure access controls and network security principles in cloud environments
Support design and implementation of secure hybrid architectures
Assist in implementing security controls for cloud-based workloads
Resolve incidents and service requests within agreed SLA timelines under general supervision
Monitor network and security systems proactively to detect and mitigate issues
Investigate, analyse, and troubleshoot network and security-related incidents
Maintain accurate and timely updates in ticketing systems with resolution details
Escalate complex issues to senior engineers or Technical Leads where required
Ensure adherence to ITIL processes including Incident, Problem, and Change Management
Support, track, and document change implementation activities
Participate in security audits, compliance checks, and risk assessments
Contribute to continuous improvement of security and network operations
Work closely with migration teams, cloud engineers, and security architects
Communicate effectively with stakeholders to support secure migration delivery
Share knowledge and document solutions for recurring issues
Support junior engineers and contribute to team capability development

Requirements

3–5 years of experience in networking and security engineering
Hands-on experience with firewall administration (Fortigate, Palo Alto preferred), Azure networking (VNets, NSGs, routing), VPN and ExpressRoute connectivity, network security principles and segmentation, security policy implementation and compliance
Strong understanding of hybrid cloud networking architectures
Experience supporting enterprise infrastructure and migration projects
Bachelor’s degree in IT, Computer Science, or related field (or equivalent experience)
Preferred certifications: CCNA / CCNP (Networking), Palo Alto, Fortinet, or other firewall certifications, Microsoft Certified: Azure Network Engineer Associate, security certifications (e.g., CISSP, Security+) are advantageous
Experience with Zero Trust architectures
Exposure to cloud security tools (Defender for Cloud, Sentinel)
Strong troubleshooting and analytical skills in network and security domains
Ability to work in high-pressure, mission-critical environments
Good communication and stakeholder engagement skills
Attention to detail and strong documentation practices
Customer-focused mindset with commitment to service excellence

Nice to have

CCNA / CCNP (Networking)
Palo Alto, Fortinet, or other firewall certifications
Microsoft Certified: Azure Network Engineer Associate
Security certifications (e.g., CISSP, Security+)
Experience with Zero Trust architectures
Exposure to cloud security tools (Defender for Cloud, Sentinel)

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Security Network Engineer – Cloud Migration

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