Networking Managed Services Engineer (L3)

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.

The Security / Network Engineer is responsible for supporting migration teams by implementing secure network connectivity, firewall configurations, and security controls required for migration between on-premise and Azure environments. This role ensures compliance with enterprise security standards while enabling seamless and secure workload migration.

In addition, the role operates within a managed services environment, ensuring infrastructure and network services remain secure, available, and performant through proactive monitoring, troubleshooting, and incident resolution.

Key Responsibilities:

Network & Security Implementation

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.

Azure Networking & Cloud Security

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.

Technical Support & Incident Management

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.

Service Delivery & Process Compliance

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.

Collaboration & Knowledge Sharing

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.

Required Skills & Qualifications

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.

Key Competencies

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.

Qualifications & Certifications

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).

Workplace type:

On-site Working

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 part of NTT Group, which invests over $3 billion each year in R&D.

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