Security Architect Advanced Network

At NTT DATA, we know that with the right people on board, anything is possible. The quality, integrity, and commitment of our employees have been key factors in our company's growth and market presence. By hiring the best people and helping them grow both professionally and personally, we ensure a bright future for NTT DATA and for the people who work here.

For more than 25 years, NTT DATA Services have focused on impacting the core of your business operations with industry-leading outsourcing services and automation. With our industry-specific platforms, we deliver continuous value addition, and innovation that will improve your business outcomes. Outsourcing is not just a method of gaining a one-time cost advantage, but an effective strategy for gaining and maintaining competitive advantages when executed as part of an overall sourcing strategy.

NTT DATA Services currently seeks a Security Architect – Advanced Network & Cloud Securityto join our team in Los Angeles, California .

Summary

We are seeking a senior L4 Security Architect to lead the design and implementation of advanced security architectures for large-scale enterprise environments. This role focuses on multi-vendor NGFW, DDoS mitigation, identity and access control, and full-stack observability integrated with automation and orchestration. The ideal candidate demonstrates deep, hands-on expertise across Cisco security platforms, threat analytics, and modern security frameworks, with proven experience driving complex deployments and mentoring engineering teams.

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Key Responsibilities

• Architect end-to-end security solutions: Design secure network architectures incorporating NGFW, segmentation, NAC, and Zero Trust principles across campus, data center, and cloud environments.

• Lead firewall and threat defense strategy: Implement Cisco Firepower Threat Defense (FTD) and Firewall Management Center (FMC) policies, optimize multi-vendor NGFW (Cisco, Palo Alto, Fortinet) deployments, and ensure high availability.

• DDoS protection and mitigation: Design and operationalize Radware DDoS and NTT GIN DDoS solutions for critical infrastructure resilience.

• Identity and access control: Architect Cisco Client for policy enforcement, NAC posture, and segmentation; integrate Cisco DUO for MFA and Zero Trust access.

• Secure visibility and analytics: Deploy Cisco Secure Network Analytics (SNA), ThousandEyes, and Grafana dashboards for real-time threat detection and performance monitoring.

• Cloud and SaaS security: Implement Cisco Umbrella for DNS-layer protection and CSSPM for cloud posture management.

• Automation and orchestration: Develop SOAR workflows, optimize SIEM/XDR integrations, and drive security automation using Python, Ansible, and API-based frameworks.

• Governance and compliance: Produce HLD/LLD, security standards, segmentation policies, and compliance artifacts; contribute to reusable templates and reference architectures.

• Mentorship and leadership: Guide engineering teams through design reviews, security best practices, and operational enablement sessions.

• Stakeholder engagement: Collaborate with network, cloud, and application teams to align security architecture with business objectives and measurable outcomes.

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Required Qualifications (Must-Have)

• 10+ years in enterprise security architecture and engineering, including 3–5+ years leading multi-vendor NGFW and advanced security solutions at scale.

• Proven hands-on expertise with Cisco FTD/FMC, Radware DDoS, Cisco Umbrella, Cisco Client, Cisco DUO, and Cisco Secure Network Analytics.

• Strong experience with ThousandEyes, Grafana, and observability-driven security analytics.

• Deep knowledge of SIEM, SOAR, XDR, and security automation frameworks.

• Demonstrated success in segmentation design, NAC posture enforcement, and Zero Trust implementation.

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Preferred Qualifications

• Cisco Certified Specialist or CCIE Security; certifications in Palo Alto, Fortinet, or cloud security (AWS/Azure).

• Experience with CSSPM, ARP optimization, and advanced threat intelligence platforms.

• Familiarity with Catalyst Center for integrated automation and assurance.

• Strong scripting and automation skills (Python, Ansible, Terraform).

Work Style & Travel

• Must be able to work onsite at client locations as required.

• Off-hours change windows may be needed for critical security migrations and incident response.

About NTT DATA Services:

NTT DATA Services is a recognized leader in IT and business services, including cloud, data and applications, headquartered in Texas. As part of NTT DATA, a $30 billion trusted global innovator with a combined global reach of over 80 countries, we help clients transform through business and technology consulting, industry and digital solutions, applications development and management, managed edge-to-cloud infrastructure services, BPO, systems integration and global data centers. We are committed to our clients' long-term success. Visit or LinkedIn to learn more.

NTT DATA Services is an equal opportunity employer and considers all applicants without regarding to race, color, religion, citizenship, national origin, ancestry, age, sex, sexual orientation, gender identity, genetic information, physical or mental disability, veteran or marital status, or any other characteristic protected by law. We are committed to creating a diverse and inclusive environment for all employees. If you need assistance or an accommodation due to a disability, please inform your recruiter so that we may connect you with the appropriate team.

Where required by law, NTT DATA provides a reasonable range of compensation for specific roles. The starting hourly range for this remote role is ($x - x/hourly ). This range reflects the minimum and maximum target compensation for the position across all US locations. Actual compensation will depend on several factors, including the candidate's actual work location, relevant experience, technical skills, and other qualifications.

This position is eligible for company benefits that will depend on the nature of the role offered. Company benefits may include medical, dental, and vision insurance, flexible spending or health savings account, life, and AD&D insurance, short-and long-term disability coverage, paid time off, employee assistance, participation in a 401k program with company match, and additional voluntary or legally required benefits.