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Network and Security DevOps 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:

The Network and Security DevOps Engineer will be responsible for designing and securing advanced networking infrastructures for AI workloads. The role requires a deep understanding of high-speed networking protocols, experience with Dell/NVIDIA GPU infrastructure, and strong network security expertise. The ideal candidate will have a bachelor's degree in a related field and at least 5 years of experience in network engineering and security practices.

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 (e.g., Z9432F, S5248F)
  • Design, deploy, and manage secure, scalable network architectures (LAN/WAN, firewall Palo alto)
  • Implement and maintain network security controls across RDMA-enabled fabrics, ensuring isolation and integrity of GPU clusters
  • Manage DC fabrics like VXLAN-EVPN
  • Implementation of QoS for DC environment with very high performance (marking, Queing, WRED, smart/adaptative buffering, smart ECMP/multi-path load-balancing…etc…)
  • 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:

  • 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 (marking, Queing, WRED, smart/adaptative buffering, smart ECMP/multi-path load-balancing…etc…), and of lossless fabrics for AI/ML environnement AI/ML : PFC, DCQCN, le « RoCE Adpatative Routing », NVDIA etc…
  • 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
  • Bachelor’s degree in Computer Science, Information Security, Network Engineering, or equivalent experience
  • At least 5 years of experience in network engineering and security practices

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:
February 17, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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