Manager, IT​/Tech

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
Strong hands-on experience in  Kubernetes administration and L3 troubleshooting
Knowledge on virtualization like vSphere, Open Stack, 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 & Dev Ops
Hands-on experience with:
Jenkins
Git Lab 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
Alert manager
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