1 Year Contract role Role: Kubernetes Manager Level: L3 / Senior Kubernetes Administration & Operations Primary Focus: Linux Administration, Kubernetes Administration, Production Operations, SRE, Monitoring, Security, Upgrades and Customer Escalation Mandatory Skills - CKA certification (Preferred)

- Strong/deep knowledge of Linux administration and troubleshooting
- Solid hands-on experience in Kubernetes administration and L3 troubleshooting
- Knowledge on virtualization like vSphere, OpenStack, Ovirt , KVM
- Production experience in Kubernetes cluster operations, incident management and troubleshooting
- Strong knowledge of Kubernetes architecture, control plane, worker nodes, networking, storage and workloads
- Ability to handle P1/P2/P3 incidents and customer escalations within SLA
- Hands-on experience with Kubernetes upgrades, patching and maintenance
- Strong understanding of container runtime technologies:
- containerd
- CRI-O
- Docker
- CRI
- Experience with container registries, preferably Harbor Monitoring & Observability - Configure and administer Prometheus
- Configure and manage Alert manager
- Grafana dashboard creation and monitoring
- Kubernetes cluster health monitoring
- Alert investigation and resolution within SLA
- Alert tuning and noise reduction
- Identify duplicate/repeated alerts and optimize alert rules
- Experience with ELK/EFK and Fluentd
- Log collection, analysis and troubleshooting CI/CD & DevOps Hands-on experience with:
- Jenkins
- GitLab CI/CD
- Git
- Container image build and deployment
- Kubernetes deployment automation
- CI/CD troubleshooting Kubernetes Operations Responsible for:
- Day-to-day Kubernetes cluster administration
- L3 troubleshooting of Kubernetes issues
- Kubernetes upgrade and patching activities
- Cluster health checks
- Node and pod troubleshooting
- Control-plane and worker-node troubleshooting
- Kubernetes networking troubleshooting
- Kubernetes storage troubleshooting
- Resource and performance analysis
- Incident/problem management
- Root Cause Analysis (RCA)
- Vulnerability remediation




- Production change implementation
- Customer-specific Kubernetes requirements Security & Vulnerability Management - Kubernetes security best practices
- Vulnerability identification and remediation
- Container image vulnerability management
- Registry security
- Kubernetes RBAC
- Network/security policy concepts
- SSL/TLS certificate management
- Experience with security tools such as Gatekeeper
- Ability to coordinate vulnerability fixes across OS, Kubernetes and container layers Networking Strong understanding of:
- DNS
- TCP/IP and L3 networking
- Load Balancers
- SSL/TLS termination
- Ingress
- Kubernetes Services
- Network troubleshooting
- Ingress Controllers
- Istio Gateway
- Service Mesh concepts
- NGINX
- Kong API Gateway Storage Good understanding of Kubernetes storage and underlying infrastructure:
- NFS / File storage
- Block storage
- Object storage
- PV/PVC
- Storage Class
- CSI
- Storage troubleshooting
- Mount and I/O issues
- Storage performance concepts Platform Components Working knowledge of: Component Required Knowledge Istio Service Mesh, Gateway, traffic management NGINX Ingress / reverse proxy Kong API Gateway Redis Cache / datastore PostgreSQL Database fundamentals & troubleshooting Kafka Messaging / event streaming RabbitMQ Message broker Keycloak IAM / authentication Gatekeeper Kubernetes policy enforcement Harbor Container registry Prometheus Monitoring Grafana Visualization Alertmanager Alert management ELK Centralized logging Fluentd Log collection Customer & Operations Responsibilities - Provide 24×7/on-call customer support as required
- Handle customer escalations at OS and Kubernetes levels
- Understand and resolve customer production issues
- Participate in incident bridges and technical discussions
- Perform RCA for critical incidents
- Track and resolve tickets within defined SLA
- Handle day-to-day customer requirements
- Coordinate with development, compute, network, storage, security and application teams
- Ensure production changes follow the approved change-management process
- Prepare technical documentation and operational procedures

📌 Manager (Salem)
🏢 Tata Communications
📍 Salem