Application Support - Open shift withMongo DB

Production Support
• Provide L1/L2 support for banking applications in Production, UAT, and DR environments.
• Monitor application availability and resolve incidents within defined SLAs.
• Analyze application, OpenShift, and MongoDB logs to identify root causes.
• Perform incident, problem, and change management activities.
• Participate in production deployments, release validation, and rollback activities.
• Prepare RCA documents and implement preventive actions.
• Coordinate with development teams for bug fixes and permanent solutions.
• Support 24x7 rotational on-call activities.
OpenShift Platform Support
• Monitor application pods, deployments, replica sets, and services.
• Troubleshoot pod crashes, OOMKilled, CrashLoopBackOff, Pending Pods, and ImagePull errors.
• Monitor CPU, Memory, Storage, and Pod utilization.
• Analyze OpenShift Events and Container Logs.
• Perform application scaling and restart activities.
• Manage ConfigMaps, Secrets, Routes, PVCs, and Service Accounts.
• Validate application deployments through CI/CD pipelines.
• Coordinate with OpenShift platform teams during cluster maintenance.
MongoDB Support
• Monitor Replica Sets and database health.
• Troubleshoot replication lag and node failures.
• Analyze slow queries, indexes.
• Monitor disk utilization and database growth.
• Validate database connectivity from applications.
• Execute basic MongoDB administrative tasks and health checks.
Monitoring & Alert Management
• Monitor applications using Grafana, Prometheus, ELK/Loki, Splunk, or similar tools.
• Respond to production alerts and perform first-level diagnosis.
• Create dashboards for application health and infrastructure metrics.
• Monitor JVM, API response times, database connectivity, and transaction failures.
Banking Operations Support
• Monitor payment transactions and batch jobs.
• Troubleshoot transaction failures, timeout issues, and integration problems.
• Coordinate with middleware, API, MQ/Kafka, and database teams.
• Ensure minimal business impact during incidents.
Required Technical Skills
OpenShift / Kubernetes
• Red Hat OpenShift 4.x
• Kubernetes concepts
• Pods, Deployments, ReplicaSets
• Services & Routes
• ConfigMaps & Secrets
• Persistent Volumes
• Resource Management
• Container troubleshooting
MongoDB
• MongoDB Replica Sets
• Indexes
• Aggregation
• Performance Monitoring
• Query Analysis
• Replication Monitoring
Linux
• Shell scripting
• Process management
• Log analysis
• File system management
Additional Skills
• REST APIs
• Networking fundamentals (DNS, Load Balancer, SSL)
Banking Domain Knowledge (Preferred)
• Payment Systems (NEFT, RTGS, IMPS, UPI)
• Transaction lifecycle
• High Availability (HA) and Disaster Recovery (DR)
• Banking production support processes
• ITIL Incident, Problem, and Change Management
Soft Skills
• Strong analytical and troubleshooting skills.
• Ability to work under pressure during critical production incidents.
• Excellent communication and stakeholder management.
• Good documentation and RCA preparation skills.
• Ability to coordinate with multiple cross-functional teams.