Senior Red Hat OpenShift Administrator… at GSSTech Group · Bengaluru

We are looking for an experienced Red Hat Certified OpenShift Administrator with strong expertise in enterprise OpenShift environments, automation, Infrastructure as Code, CI/CD, GitOps, cloud migration, and platform engineering.

The ideal candidate should have extensive hands-on experience managing large-scale OpenShift clusters and a strong understanding of the underlying infrastructure, networking, security, virtualization, and automation ecosystem.

🔹 Key Responsibilities

• Install, configure, administer, upgrade, and manage large-scale Red Hat OpenShift clusters.
• Perform OpenShift platform administration, troubleshooting, monitoring, performance optimization, and capacity management.
• Design and implement automation for OpenShift infrastructure and application deployments.
• Manage infrastructure using Terraform, Ansible, and Jenkins.
• Implement and maintain GitOps-driven configuration management and deployment using tools such as Argo CD.
• Support migration of enterprise applications and workloads to cloud environments.
• Develop and maintain CI/CD pipelines using Jenkins and Git-based workflows.
• Automate infrastructure provisioning, configuration management, application deployment, and operational activities.
• Develop and maintain Helm charts for application packaging and deployment.
• Work closely with development, infrastructure, security, networking, and application teams to resolve complex platform issues.
• Integrate OpenShift and enterprise platforms through REST/SOAP APIs.
• Develop API consumers/publishers and support integration with external systems.
• Support high-availability architectures and ensure platform reliability and resilience.
• Troubleshoot complex issues involving OpenShift, networking, DNS, SSL/TLS, certificates, load balancers, firewalls, Active Directory, and infrastructure components.

🔹 Mandatory Technical Skills

Red Hat OpenShift

• Strong hands-on expertise in Red Hat OpenShift Administration.
• Red Hat Certified OpenShift Administrator certification preferred/required.
• Extensive experience with installation, configuration, upgrades, automation, troubleshooting, and management of enterprise OpenShift clusters.
• Experience with OpenShift Virtualization / KubeVirt.

Infrastructure as Code & Automation

• Expert-level experience with:
• Terraform
• Ansible
• 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 & Automation
Excellent scripting/programming capabilities using:

• Bash
• PowerShell
• Python
• Groovy
• Helm / Helm Templates

🔹 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.

🔹 Infrastructure & Networking Knowledge

Strong conceptual and practical understanding of enterprise infrastructure, including:

• DNS architecture and troubleshooting
• Authoritative and Non-Authoritative DNS
• Dynamic DNS
• BIND DNS
• DNS Forwarders
• Load Balancers
• Site Selectors
• Firewalls
• High Availability architectures
• Network communication and traffic flows
• SSL/TLS communication
• SSL handshake and certificate validation
• Cipher Suites and encryption algorithms

🔹 Security & Identity

Strong understanding of enterprise security concepts, including:

• Active Directory
• Security Organizational Units (OUs)
• Active Directory policies
• Digital certificates
• SAN certificates
• Client authentication
• Keystores
• Mutual SSL / mTLS
• SSL/TLS security
• Secrets and privileged-access management

Experience with enterprise vault and secrets-management technologies such as:

• HashiCorp Vault
• CyberArk

🔹 OpenShift & Platform Engineering

The candidate should demonstrate a strong understanding of:

• OpenShift architecture and components
• Kubernetes concepts and orchestration
• Containerized application platforms
• OpenShift networking
• Storage and persistent volumes
• Cluster security
• High availability and disaster recovery concepts
• OpenShift Virtualization / KubeVirt
• Platform automation
• Enterprise workload migration
• Cloud-native application deployment

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

🔹 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.