Application Support - React.js & Node.js

• L2L3 Application Support
• Provide incident resolution and production support for React Nodejs applications
• Analyze and troubleshoot issues across
• UI layer React components rendering issues
• API layer Nodejs services
• Integration layer API failures data inconsistencies
• Ensure SLA adherence for incident resolution and service requests
• Debugging Root Cause Analysis
• Perform deepdive debugging using browser dev tools logs and monitoring tools
• Identify root causes of recurring issues and provide permanent fixes
• Analyze API failures latency issues and UI performance bottlenecks
• Enhancements Bug Fixes
• Implement minor enhancements and bug fixes in React components and Nodejs services
• Optimize frontend performance lazy loading code splitting rendering efficiency
• Improve API performance and reliability
• Cloud Environment Support
• Support applications deployed on hyperscalers AzureGCPAWS

Work with

• Logs and monitoring tools Cloud Logging App Insights etc
• CICD pipelines GitHub Actions Azure DevOps Jenkins
• Assist in deployments hotfix releases and environment configuration

Monitoring Reliability

• Monitor application health and proactively identify potential issues
• Support ing systems and dashboards for application performance
• Participate in oncall rotations for critical incidents

Collaboration Documentation

• Work with development QA and infrastructure teams for issue resolution
• Maintain runbooks knowledge base articles and RCA documents
• Participate in agile ceremonies and continuous improvement initiatives

Primary Skills Must Have

• React Frontend Support Debugging
• Strong handson experience with Reactjs functional components hooks
• Ability to debug UI issues state management rendering issues API binding failures

Experience with

• Component lifecycle and performance optimization
• State management Redux Context API
• Handling asynchronous data flows and API integration
• Nodejs BackendAPI Support
• Strong experience with Nodejs Expressjs preferred
• Ability to debug and support REST APIs and backend services

Understanding of

• Middleware routing and requestresponse lifecycle
• Error handling logging and performance bottlenecks
• API authentication mechanisms JWT OAuth basics
• CSS UI Styling
• Strong proficiency in CSS3 responsive design and crossbrowser compatibility

Experience with

• UI debugging layout issues responsiveness styling conflicts
• CSS frameworks Bootstrap Material UI Tailwind any exposure
• Improving UIUX consistency across devices

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