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D16 Bedok, Eastwood, Kew Drive, Upper East Coast, Singapore
ContractInformation Technology

Job Description

We are seeking an OpenShift Engineer, L1Support to provide first-level operational support for enterprise RedHat OpenShift / Kubernetes environments.

This is an infrastructure andplatform operations role. The engineer will support daily monitoring,incident triage, basic troubleshooting, operational checks, user accesssupport, and escalation of platform issues to L2/L3 teams.

The ideal candidate should havehands-on exposure to Linux systems, OpenShift/Kubernetes operations, containerplatforms, networking basics, monitoring tools, and production supportprocesses.

Key Responsibilities

Provide L1 operational support for Red HatOpenShift / Kubernetes platforms.

  • Perform daily health checks on OpenShift clusters, nodes, pods, operators, routes, storage, and platform services.
  • Monitor cluster availability, resource usage, alerts, and workload status using Prometheus, Grafana, Alertmanager, ELK, Splunk, or equivalent tools.
  • Perform first-level troubleshooting for common platform issues, including:
  • Pod failures
  • CrashLoopBackOff
  • Image pull errors
  • Node resource pressure
  • Route / ingress access issues
  • DNS-related issues
  • Persistent volume mount issues
  • Certificate expiry alerts
  • Basic authentication or access issues
  • Support routine platform operations such as:
  • User and group access requests
  • Namespace / project checks
  • Pod restarts and rollout validation
  • Log collection
  • Basic YAML review
  • Alert validation
  • Evidence collection for incidents and changes
  • Escalate complex issues to L2/L3 platform teams with clear initial findings, logs, timestamps, affected components, and business impact.
  • Support planned changes, maintenance windows, patching activities, upgrades, and deployment validations under guidance from senior engineers.
  • Work with application, DevOps, infrastructure, network, security, and vendor teams to coordinate issue resolution.
  • Maintain operational documentation, SOPs, runbooks, shift handover notes, and knowledge base articles.
  • Follow enterprise incident, problem, change, and service request processes.
  • Participate in shift-based support, standby, or rostered operations where required.

Required Skills &Experience

2 to 4 years of hands-on experience ininfrastructure, Linux, Kubernetes, or OpenShift platform operations.

  • Hands-on working knowledge of Red Hat OpenShift or Kubernetes operations.
  • Basic Linux system administration and command-line troubleshooting skills.
  • Understanding of container concepts using Docker, CRI-O, or containerd.
  • Familiarity with Kubernetes/OpenShift core objects, including:
  • Pods
  • Deployments
  • ReplicaSets
  • Services
  • Routes / Ingress
  • ConfigMaps
  • Secrets
  • PersistentVolumeClaims
  • Namespaces / Projects
  • Nodes
  • Basic OpenShift CLI and Kubernetes CLI usage, including oc and kubectl.
  • Ability to read and understand YAML manifests.
  • Basic troubleshooting experience using commands such as:
  • oc get
  • oc describe
  • oc logs
  • oc events
  • oc adm top
  • oc rollout status
  • oc get nodes
  • oc get co
  • Basic understanding of OpenShift cluster components such as:
  • Control plane
  • Worker nodes
  • Operators
  • Router / ingress
  • Registry
  • Monitoring stack
  • Familiarity with monitoring and alert handling using Prometheus, Grafana, Alertmanager, ELK, Splunk, or similar tools.
  • Basic networking knowledge, including DNS, IP addressing, load balancers, HTTP/HTTPS, TLS certificates, routes/ingress, and firewall concepts.
  • Basic storage knowledge, including PersistentVolumes, PersistentVolumeClaims, StorageClass, NFS, block storage, or object storage.
  • Experience in production support, operations, incident handling, or daily system health checks.
  • Ability to collect logs, evidence, and initial findings for escalation.
  • Basic scripting ability using Shell or Python is advantageous.
  • Strong troubleshooting, analytical, and communication skills.

Preferred Qualifications

Experience supporting OpenShift in enterprise,banking, telecom, government, or regulated environments.

  • Exposure to Red Hat OpenShift 4.x.
  • Exposure to VMware, bare metal, or cloud-hosted OpenShift environments.
  • Basic understanding of AWS, Azure, or GCP infrastructure.
  • Exposure to CI/CD tools such as Jenkins, GitLab CI, Argo CD, or Tekton.
  • Familiarity with GitOps concepts.
  • Basic understanding of certificates, secrets, image registries, and container image scanning.
  • Practical experience with ITIL processes such as incident, problem, change, and service request management.
  • Red Hat certification such as RHCSA, EX180, EX280, or equivalent is an advantage.

About Exceltech Computers Pte. Ltd.

First seen: June 6, 2026
Last updated: June 15, 2026