OpenShift Administrator
Rapsys Technologies Pte Ltd.
35 hours ago
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Job summary
Rapsys Technologies Pte Ltd. seeks a senior systems engineer with hands-on Red Hat OpenShift 4.x administration and Linux expertise to support enterprise deployments in Denver. You will manage Kubernetes, Docker, scripting, and monitoring, implementing CI/CD pipelines and GitOps workflows.
On-call rotations and on-site work are required. Ideal candidates have strong incident management skills, with experience in networking, security, backup, and disaster recovery.
Qualifications
- Hands-on experience with OpenShift 4.x in enterprise environments.
- Strong Linux administration and troubleshooting skills.
- Experience with Kubernetes, Docker, and container orchestration.
- Scripting skills in Shell and Python for automation.
- Proficient with CI/CD tools: Jenkins, Git, Ansible, Helm, GitOps.
- Familiarity with ArgoCD and CI/CD pipelines.
- OpenShift upgrades, monitoring, scaling, and performance tuning.
- Production support, incident handling, and RCA.
- Knowledge of networking, security, backup and disaster recovery.
- Experience with monitoring stacks: Dynatrace, Prometheus, Grafana, ELK.
Responsibilities
- Maintain and operate OpenShift clusters in production.
- Develop and optimize CI/CD pipelines and GitOps workflows.
- Automate tasks using Shell/Python scripting and configuration management.
- Monitor performance, handle incidents, and perform RCA.
- Collaborate with security, networking, and SRE teams to ensure reliability.
Skills
OpenShift Administration
Linux Administration
Kubernetes
Docker
Shell scripting
Python scripting
Jenkins
Git
Ansible
Helm
GitOps
ArgoCD
CI/CD pipelines
OpenShift upgrades
Performance optimization
Production support
Incident management
Root Cause Analysis
Networking
Security
Backup
Disaster recovery
Dynatrace
Prometheus
Grafana
ELK
Azure
Istio
CKA
Red Hat OpenShift Certification
Tools
OpenShift
Kubernetes
Docker
Jenkins
Git
Ansible
Helm
GitOps
ArgoCD
Dynatrace
Prometheus
Grafana
ELK
Istio
Azure
Job description
Must-Have Skills
- Strong hands-on Red Hat OpenShift 4.x Administration
- Linux Administration: RHEL, CoreOS, troubleshooting and patching
- Strong Kubernetes, Docker & Container Orchestration
- Shell / Bash / Python Scripting and automation
- Jenkins, Git, Ansible, Helm & GitOps
- Experience with CI/CD pipelines and ArgoCD
- OpenShift cluster upgrades, monitoring, scaling and performance optimization
- Strong production support, incident management and RCA experience
- Knowledge of networking, security, backup and disaster recovery
- Monitoring: Dynatrace, Prometheus, Grafana, ELK
Preferred Skills
Azure | Istio Service Mesh | CKA / Red Hat OpenShift Certification | Financial Services Experience
Interview Process
- One round via Microsoft Teams
- Candidates must present identification during the interview
Must be willing to work onsite 5 days/week and participate in an on-call rotation.
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