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The Principal Networking Managed Services Engineer is a senior technical expert responsible for architecting, deploying, and maintaining secure networking infrastructures within managed service environments. This role leads the design and delivery of advanced network security solutions, ensuring seamless execution of complex client engagements. As a trusted advisor and subject matter expert, the engineer plays a key role in driving infrastructure modernization initiatives, including the integration of next-generation firewalls and Zero Trust security frameworks.

Key Responsibilities

• Architect, implement, and manage complex managed security solutions tailored to client needs.
• Lead the evolution of security infrastructure, integrating next-gen firewalls and Zero Trust models.
• Act as a senior technical consultant and escalation point, providing fourth-line support and resolving complex incidents.
• Drive knowledge sharing and mentorship across engineering teams, ensuring continuous capability growth.
• Own the technical governance of deals and provide hands-on support for architecture- and project-related initiatives.
• Oversee performance monitoring, optimization, and compliance with industry regulations and data protection standards.
• Develop automation tools and scripts to streamline operations and improve operational efficiency.
• Produce and maintain detailed technical documentation, including configurations, diagrams, and runbooks.
• Lead or contribute to disaster recovery planning and testing.
• Serve as an emergency contact for critical, business-impacting issues and outages.

• Participate in cross-functional collaboration with internal and client-facing teams.

Skills & Attributes

• Proven leadership in a technical environment with strong stakeholder engagement skills.
• In-depth expertise in network security technologies and managed services delivery models.
• Excellent analytical and problem-solving ability for high-stakes security challenges.
• Strong scripting capabilities (Python, Perl, Ruby) and experience with automation frameworks (Ansible, Puppet, Chef).
• Effective communicator with the ability to translate technical detail into actionable insights.

Qualifications

• Bachelor’s degree in IT, Computer Science, or a related discipline (or equivalent work experience).
• Firewall certification (mandatory).
• Preferred: CCNP/PCNSE, CCIE, CISSP, and automation certifications.

Experience

• Significant experience in managed services, delivering and maintaining complex security infrastructures.
• Extensive background in enterprise security solution design and implementation.
• Experience in global enterprise environments and vendor management.
• Strong familiarity with service management frameworks and tools (especially ServiceNow).
• Demonstrated experience across multiple security domains and emerging technologies.
• Competent and/or certified in the following technologies:
• Cisco Routers
• Cisco Nexus Switching
• Cisco Catalyst Switching
• HP Switching
• Brocade Switching
• Cisco Meraki Switching
• Cisco ASA
• Fortinet
• Juniper
• Check Point
• Palo Alto
• Cisco Meraki
• Palo Alto Prisma
• Citrix Netscaler
• F5
• Riverbed
• Cisco Meraki Wireless
• Cisco Aironet Wireless
• Silver Peak
• Cisco SD-WAN / Meraki SD-WAN

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Workplace type:

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. Accelerate your career with us. Apply today