Job Description

Location:

Singapore - Onsite

Job Type:

Full-Time

Duration:

12Months renewable

Experience Required:

5+ years of relevant experience

, including

3+ years of hands-on administration of Red Hat OpenShift 4.x

Job Summary:

We are seeking a highly skilled and motivated

OpenShift L2 Engineer

with a minimum of

5 years of relevant experience

in infrastructure/platform operations, including

3+ years of hands-on administration of Red Hat OpenShift 4.x

in enterprise production environments. The engineer will be responsible for managing

Day 2 operations

of OpenShift clusters, including core services like

ACS (Advanced Cluster Security)

,

ACM (Advanced Cluster Management)

,

Quay

, and

OpenShift Service Mesh

, while actively supporting application deployment workflows and CI/CD practices.

Key Responsibilities:

Operate and maintain

Red Hat OpenShift 4.x

clusters with a focus on Day 2 operations:
o Cluster health monitoring, node scaling, patching, and upgrades


o Certificate management, storage troubleshooting, and network policy enforcement


Manage and support platform services:
o

ACS

- Vulnerability management, runtime security, and compliance policy enforcement


o

ACM

- Multi-cluster governance, policy management, and cluster lifecycle automation


o

Quay

- Secure and manage container image registries with vulnerability scanning


o

Service Mesh (Istio)

- Service-to-service communication, observability (Kiali, Jaeger), and mTLS enforcement


Provide

application deployment support

:
o Troubleshoot CI/CD issues with Tekton, Jenkins, ArgoCD, or GitHub Actions


o Assist development teams with onboarding and deployment best practices


Troubleshoot and resolve production incidents, participate in root cause analysis (RCA), and create documentation Implement platform backup, disaster recovery (e.g.,

Velero

), and availability strategies Collaborate with Red Hat and vendor support to resolve complex platform issues Maintain accurate and up-to-date documentation (SOPs, runbooks, RCA reports, etc.)

Required Skills & Experience:

5+ years of relevant experience

in infrastructure/platform operations, including:
o

3+ years of hands-on experience administering Red Hat OpenShift 4.x

Strong understanding of Kubernetes core concepts, Operators, Helm, CRDs, and container orchestration Experience in:
o

ACS

for container security and runtime policies


o

ACM

for multi-cluster operations and policy governance


o

Quay

registry for secure image lifecycle management


o

OpenShift Service Mesh (Istio)

for service communication and tracing


Linux administration (RHEL preferred) and strong familiarity with CLI tools Experience with GitOps and CI/CD tools: Tekton, ArgoCD, Jenkins, GitHub Actions Scripting/automation:

Bash

,

Python

, or

Ansible

Familiarity with observability and monitoring tools like Prometheus, Grafana, EFK, Loki

Preferred Qualifications:

Red Hat Certifications:
o

EX280

- OpenShift Administration


o

EX288

- OpenShift Application Development


Experience with backup tools like

Velero

,

Kasten

, or equivalent Understanding of compliance, DevSecOps, and secure platform operations in regulated industries (e.g., BFSI, healthcare)

Soft Skills:

Strong analytical and troubleshooting skills Effective communicator with technical and non-technical teams Ability to work independently and collaboratively in a team environment * Proactive in knowledge sharing and documentation