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RATP

Public transport operator and network maintenance

Expert DevOps Engineer - DSI/FAB

Platform EngineeringConfirmed live in the last 24 hours
Full-time€65k - €75k /yr

About the Job

Requirements

  • Hold a BAC+5 qualification.
  • Have approximately 8 years of significant experience with containerization platforms.
  • Have expert-level mastery of Kubernetes across OpenShift, Azure AKS, and AWS EKS.
  • Manage and deploy workloads using Helm charts, operators, and YAML.
  • Manage service exposure, ingress, and routes across Layer 4 and Layer 7.
  • Troubleshoot containerized environments at expert level.
  • Master managed services associated with AKS and EKS, including networking (VNet/VPC, peering, private endpoints), identity (Entra ID/IAM), storage, and image registries (ACR/ECR).
  • Apply cloud architecture best practices, including high availability, multi-availability-zone design, and cost management (FinOps).
  • Have excellent mastery of Git and GitLab CI.
  • Have confirmed experience implementing GitOps practices using Argo CD or Flux.
  • Build application deployment solutions on Kubernetes.
  • Have experience with HashiCorp Vault for secrets management.
  • Harden clusters using RBAC, NetworkPolicies, admission control, image scanning, and vulnerability scanning.
  • Implement platform monitoring, logging, and metrics using Prometheus, Grafana, or equivalent tools.
  • Have excellent mastery of Ansible and Terraform for infrastructure automation and deployment.
  • Have knowledge of virtualization, networking concepts and load-balancing solutions, and SAN, NAS, and object storage.
  • Have solid development experience and mastery of scripting languages including Bash, Python, and PowerShell.
  • Have good knowledge of agile methodologies and associated tools, including Scrum, Kanban, and Jira, and of DevSecOps practices.
  • Demonstrate adaptability, flexibility, methodical and analytical organization, autonomy, initiative, teamwork, and the ability to guide and support teams.

Responsibilities

  • Design, operate, and evolve the group's Container as a Service offering across OpenShift, Azure AKS, and AWS EKS.
  • Industrialize cluster provisioning and lifecycle management using infrastructure as code, including Terraform, Ansible, and GitLab CI.
  • Define and disseminate platform standards for security, networking, ingress, observability, and GitOps.
  • Support development and production teams in adopting the platform and containerizing their applications.
  • Maintain the operational and security condition of the platforms, perform capacity planning, and troubleshoot issues at expert level.
  • Monitor technology developments and propose continuous improvements in Cloud Native and DevSecOps practices.

About the Company

RATP

Public transport operator and network maintenance

RATP Group is a global public transport company that runs and maintains urban and suburban transit networks. It operates in 15 countries with 100 subsidiaries and 71,000 employees, serving about 12 million passengers daily. Its work spans design, project management, operation, and engineering of trains, metros, trams, and buses, along with ongoing maintenance to keep services running smoothly. The company uses its expertise to deliver reliable, safe, accessible, and well-informed travel experiences, and it pursues continuous service improvement and sustainability, aiming to expand internationally through major projects while meeting new passenger expectations.

Company size
10,001+
Company stage
Not listed
Total funding
Not listed
Headquarters
Paris, France
Founded
1948

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