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DevOps Network & Security Engineer

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NTT DATA

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Location:
France , Antony

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

Not provided
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Job Description:

We are seeking a highly skilled and adaptable Network & Security Engineer with strong Web/DevOps experience to architect, secure, and automate the advanced networking infrastructure supporting our AI Factory. This role involves managing high-bandwidth fabrics (RoCE, InfiniBand) across Dell/NVIDIA GPU clusters, ensuring secure and resilient connectivity for AI/ML workloads. You will collaborate closely with DevOps and AI platform teams to streamline deployment, monitoring, and incident response for cloud-native applications running on OpenShift and Kubernetes, while integrating cutting-edge GPU orchestration and data management solutions.

Job Responsibility:

  • Design, deploy, and secure high-throughput network architectures supporting RoCE v2 fabrics for AI/ML workloads
  • Manage Dell/NVIDIA-based GPU networking environments, including backend and frontend switch configurations
  • Design, deploy, and manage secure, scalable network architectures (LAN/WAN, firewall Palo alto)
  • Implement and maintain network security controls across RDMA-enabled fabrics
  • Manage DC fabrics like VXLAN-EVPN
  • Implementation of QoS for DC environment with very high performance
  • Configure and maintain network security devices including firewalls Palo Alto
  • Monitor and analyse traffic across 400G/800G fabrics using telemetry tools
  • Respond to security incidents, conduct root cause analysis, and support forensic investigations
  • Ensure compliance with industry security standards and regulatory requirements
  • Collaborate with security teams to implement network segmentation strategies
  • Experience on orchestration environments (Openshift/Kubernetes/Docker) focusing on GPU-aware scheduling and network policies and security enforcements
  • Integrate security controls and best practices into automated build and deployment processes
  • Monitor web services for performance, availability, and security issues using Prometheus, Grafana, ELK stack, etc
  • Support web application security testing (SAST/DAST) and vulnerability remediation
  • Develop scripts and tools to automate repetitive tasks and improve operational efficiency

Requirements:

  • Bachelor’s degree in Computer Science, Information Security, Network Engineering, or equivalent experience
  • At least 5 years of experience in networking and security
  • Deep understanding of RoCE v2, InfiniBand, and high-speed networking protocols
  • Experience with Dell/NVIDIA GPU infrastructure and switch management (Z9432F, S5248F)
  • Strong background in network security technologies and RDMA-aware security practices
  • Familiarity with OpenShift, Kubernetes, and container networking
  • Proven experience in network engineering: TCP/IP, routing, switching, VPN, VLANs, firewalls
  • Strong background in network security technologies (firewall palo alto)
  • Good knowledge of architecture and technologies of QoS for High-performance Datacenter
  • Familiarity with AI/ML pipeline security and GPU orchestration platforms (RUN:AI, NVIDIA Enterprise)
  • Experience scripting with Python, Bash, or PowerShell
  • Understanding of web services, APIs, and HTTP security concepts
  • Knowledge of monitoring/logging tools (Prometheus, Grafana)
  • Strong troubleshooting and analytical skills with a security mindset

Nice to have:

  • Hands-on experience with Kubernetes and container networking/security
  • Familiarity with CI/CD pipelines and DevOps tools (Jenkins, GitLab CI, CircleCI)
  • Proficiency in Infrastructure as Code tools (Terraform, Ansible, CloudFormation)
  • Certifications such as CCNP Network
  • Experience with security / network segmentation
  • Experience working in Agile and DevSecOps environments

Additional Information:

Job Posted:
January 25, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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