Senior Red Hat OpenShift Administrator / Engineer

Role Overview

Senior Red Hat OpenShift Administrator / Engineer at GSSTech Group. The role focuses on managing enterprise-scale Red Hat OpenShift clusters with expertise in automation, Infrastructure as Code, CI/CD, GitOps, cloud migration, and platform engineering.

Role Purpose

Install, configure, administer, and optimize large-scale Red Hat OpenShift clusters in enterprise environments. Manage platform reliability, security, automation, and integration while supporting development teams in deploying and migrating applications to cloud-native architectures.

Key Responsibilities

OpenShift Platform Administration

• Install, configure, administer, upgrade, and manage large-scale Red Hat OpenShift clusters.
• Perform OpenShift platform administration, troubleshooting, monitoring, performance optimization, and capacity management.
• Support high-availability architectures and ensure platform reliability and resilience.

Infrastructure as Code & Automation

• Design and implement automation for OpenShift infrastructure and application deployments.
• Manage infrastructure using Terraform, Ansible, and Jenkins.
• Automate infrastructure provisioning, configuration management, application deployment, and operational activities.

CI/CD & GitOps

• Implement and maintain GitOps-driven configuration management and deployment using tools such as Argo CD.
• Develop and maintain CI/CD pipelines using Jenkins and Git-based workflows.
• Develop and maintain Helm charts for application packaging and deployment.

Cloud Migration & Workload Management

• Support migration of enterprise applications and workloads to cloud environments.
• Deliver enterprise workload migration and cloud-native application deployment support.

Integration & API Management

• Integrate OpenShift and enterprise platforms through REST/SOAP APIs.
• Develop API consumers/publishers and support integration with external systems.

Troubleshooting & Infrastructure Support

• Troubleshoot complex issues involving OpenShift, networking, DNS, SSL/TLS, certificates, load balancers, firewalls, Active Directory, and infrastructure components.
• Work closely with development, infrastructure, security, networking, and application teams to resolve complex platform issues.

Qualifications & Experience

• 8+ years of overall experience in relevant technical positions, preferably within large enterprise environments.
• Strong hands-on experience administering and supporting enterprise-scale OpenShift platforms.
• Proven experience with automation, orchestration, and Infrastructure as Code.
• Experience working with complex enterprise infrastructure and security environments.
• Red Hat Certified OpenShift Administrator certification preferred/required.

Skills & Competencies

Red Hat OpenShift & Kubernetes

• Strong hands-on expertise in Red Hat OpenShift Administration.
• Extensive experience with installation, configuration, upgrades, automation, troubleshooting, and management of enterprise OpenShift clusters.
• Experience with OpenShift Virtualization / KubeVirt.
• Strong understanding of OpenShift architecture and components.
• Strong knowledge of Kubernetes concepts and orchestration.
• Understanding of containerized application platforms.
• Knowledge of OpenShift networking.
• Knowledge of storage and persistent volumes.
• Understanding of cluster security.
• Knowledge of high availability and disaster recovery concepts.

Infrastructure as Code & Automation

• Expert-level experience with Terraform.
• Expert-level experience with Ansible.
• Expert-level experience with Jenkins.
• Strong understanding of Infrastructure as Code (IaC), configuration management, orchestration, and automation practices.

CI/CD & GitOps

• Strong experience implementing GitOps-based deployment models.
• Hands-on experience with Argo CD / ArgoCD.
• Strong knowledge of Jenkins pipeline development.
• Ability to write and maintain Jenkinsfiles using Groovy.
• Experience with Helm and Helm chart development.

Scripting & Programming

• Excellent scripting capabilities using Bash.
• Excellent scripting capabilities using PowerShell.
• Excellent scripting capabilities using Python.
• Excellent scripting capabilities using Groovy.
• Excellent capability with Helm / Helm Templates.

Networking & Infrastructure

• Strong conceptual and practical understanding of DNS architecture and troubleshooting.
• Knowledge of Authoritative and Non-Authoritative DNS.
• Knowledge of Dynamic DNS.
• Knowledge of BIND DNS.
• Knowledge of DNS Forwarders.
• Understanding of load balancers.
• Understanding of site selectors.
• Understanding of firewalls.
• Understanding of high availability architectures.
• Knowledge of network communication and traffic flows.
• Strong understanding of SSL/TLS communication.
• Knowledge of SSL handshake and certificate validation.
• Understanding of cipher suites and encryption algorithms.

API & Integration

• Strong understanding of API communications and integrations.
• Hands-on experience with REST and SOAP APIs.
• Ability to develop and integrate API consumers and publishers.
• Understanding of authentication, communication protocols, and enterprise API integration patterns.

Security & Identity Management

• Strong understanding of Active Directory.
• Knowledge of Security Organizational Units (OUs).
• Knowledge of Active Directory policies.
• Understanding of digital certificates.
• Knowledge of SAN certificates.
• Knowledge of client authentication.
• Understanding of keystores.
• Understanding of Mutual SSL / mTLS.
• Understanding of SSL/TLS security.
• Knowledge of secrets and privileged-access management.
• Experience with HashiCorp Vault.
• Experience with CyberArk.

Professional Attributes

• Strong troubleshooting and problem-solving skills.
• Ability to work with multiple technical teams and stakeholders in a large-scale enterprise environment.

Additional Information

Preferred Qualifications

• Red Hat Certified OpenShift Administrator certification.
• Strong hands-on experience with Ansible, Jenkins, and Terraform.
• Experience implementing GitOps and Argo CD.
• Experience with cloud migration and modernization initiatives.
• Experience supporting highly available and business-critical enterprise platforms.
• Experience in banking, financial services, or other large regulated environments is highly desirable.