Openshift Administrator

23 hours ago

Chennai, India NTT DATA Full time

Experience with Containers and Orchestrations (Docker, K8s, Rancher, Redhat Openshift and RHACM)
- Good hands on experience of managing Redhat Openshift/Kubernetes cluster (3.x and 4.x)environment.
- Installation and upgrade of Openshift/Kubernetes using manual and automated approach.
- Good knowledge on migration and transition of Redhat Openshift infra.
- Maintain and Develop Docker images/containers for different technology stack
- Setting up and managing Docker private repository and creating docker file to create custom Docker images
- Building and configuring Kubernetes-based infrastructure, Core-DNS, Kube Proxy, Ingress, etc. and leverage k8s for deploying services
- PaaS Solution based on Kubernetes (OpenShift 3.X and 4.X).
- Overall / End to end experience on Cloud (PaaS) Ops environment
- Working experience on Large/Super cluster (Andromeda)
- Design and Build IaC pipelines using Terraform and Jenkins.
- Function as an SRE to enhance platform stability and perform proactive fixes and documenting root cause analysis and emergency response.
- Ensure that the connectivity and network are always up and running and plan for capacity upgrading or downsizing as and when the need arises
- Monitoring tools - Prometheus and/or Logic Monitor. Suggest & enable monitoring for 360 degree health status of the system.
- Good knowledge of automation and configuration management framework like Ansible, Puppet, Chef, etc.
- Maintain container registry and certificates.
- Experience in Security & Hardening (under O&M) and suggest best security policies implementation.
- Maintenance of Ingress/DNS, Storage Classes, Helm Catalog in Openshift
- Understanding & troubleshooting the issues via available system logs
- Understanding of internet technologies (DNS, SNMP, HTTP, TCP/IP, CDNs)
- Experience with virtualization and cloud technologies (VMWare, RHEVM, AWS/GCP)
- Experience in working on Redhat Enterprise Linux 6/7/8
- Capable of handling End to End Project / migration.
- Ability to handle multiple projects in case of any emergency needs
- Knowledge / experience working with various support team and manage the conflicts
- Able to support weekend based on the Project needs
- Knowledge on Problem / Incident / Change management process
- Knowledge on environment life cycle process.
- Ability to prioritize and work well under pressure
- Ability to handle emergency situation at any point of time in IT operations
- Knowledge and hands on bare metal hardware (x86 - HP / DELL / IBM) support
- Good knowledge on Traditional Unix and experience on workload migration knowledge

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