Applications Support Sr Analyst
Citigroup View all jobs
- Pune, Maharashtra
- Permanent
- Full-time
- Provide end‑to‑end administration and support for Middleware and IT Infrastructure platforms with 13+ years of enterprise experience.
- Install, configure, and support IBM WebSphere (WAS), Apache Tomcat, IBM HTTP, Apache Web server across UNIX operating systems across all phases of the SDLC.
- Manage application deployments on WebSphere and Tomcat environments.
- Configure and maintain virtual hosts, data sources, JDBC resources, and connection pools across WAS and Tomcat.
- Application tuning to ensure the performance in line with Citi standard.
- Configure and integrate Apache Web Server with:
- WebSphere (WebServer Plug‑in)
- Tomcat using mod‑jk and reverse proxy configurations
- Implement and support SSL/TLS configurations at Web Server and Application Server.
- Install and manage third‑party SSL certificates across WebSphere and Tomcat.
- Integrate CA SiteMinder (SSO) for user authentication and secure access management.
- Provide Big Data platform support, including Production and Non‑Production environments.
- Support Hive services, including:
- Hive configuration and operational support
- Assistance with Hive query execution, troubleshooting, and performance analysis
- Support deployment and processing of XML data within enterprise and big data environments.
- Collaborate with application and data engineering teams to ensure stable data ingestion, processing, and availability.
- Install and configure application performance monitoring tools such as:
- AppDynamics
- Conduct on-demand performance analysis for problematic applications and platforms.
- Perform JVM, application, and web server performance tuning.
- Troubleshoot complex issues using:
- Logs and traces
- Heap dumps and core dumps
- Thread analysis and memory diagnostics
- Handle same‑day risk assessment, impact analysis, and escalations in line with SLAs.
- Support both Production and Non‑Production environments, ensuring operational stability and compliance.
- Weekend support for application deployment.
- Actively participate in Change Activities (CAs) following ITIL best practices.
- Plan, prioritize, and execute daily tasks while enforcing:
- Incident Management
- Problem Management
- Change Management
- Lead and mentor offshore teams, providing technical guidance and operational oversight.
- Act as a Subject Matter Expert (SME) for Middleware, Tomcat, and Big Data platforms.
- Serve as a liaison between business users, application teams, infrastructure teams, and vendors.
- Exhibit strong communication, stakeholder engagement, and decision‑making skills.
- Operate independently with minimal supervision while exercising sound technical and risk‑based judgment.
- Bachelor’s/University degree or equivalent experience