Karthikeyan Sambath

Dedicated Applications Support Analyst and SRE Engineer with around 4 years of experience in IT operations and system engineering, specializing in the Banking and Payment Domain. Expert in ITIL processes, including incident categorization of P1/P2 issues, with a strong technical foundation in Oracle SQL, Unix/Linux, DevOps tools and AWS cloud monitoring.

Applications Support Analyst at CITI (2023-10 – 2026-05)

• Written queries using joins, sub queries and group functions for generating reports using Oracle SQL Developer tool.
• Monitored alerts of various jobs and servers using AppDynamics.
• Transferred files using Tectia from windows machine to Unix machine.
• Actioned and monitored the Jobs using AutoSys tool.
• Used Power BI to create diverse, interactive charts, graphs, and maps to analyze data.
• Created and tracked the Problem tickets until fix the issues.
• Maintained application support documentation, operational runbooks, troubleshooting guides, and knowledge base articles using Confluence.
• Performed root cause analysis (RCA) on job failures and coordinated with development teams for permanent fixes.
• Review and approve the Change Requests on CAB calls.
• Acted as a whistleblower for P1/P2 incidents by immediately notifying critical stakeholders and executing standard operating procedures (SOP) to minimize downtime.
• Participated on weekend activities.
• Arrange the issue calls with Development team and DBA teams to find the correct RCA and update in Jira also.
• Sent Issue communications with ETA to Leads and Users.
• Raise a change request and participated on applications Disaster activities.
• Created Problem ticket finder using Claude AI integrated with internal workspace tool.
• Created and maintained technical documentation, troubleshooting guides, and runbooks in Confluence.
• Provided L2 production support for business-critical banking applications in a 24x7 support environment.

Production Support Engineer at Teamlease Digital Pvt Ltd (Tata Consultancy India Pvt Ltd) (2022-04 – 2023-04)

• Handled user queries related to reports and generated them according to their request using MySQL Workbench tool.
• Used MySQL Workbench tool to write queries using joins, subquery and group functions.
• Created, scheduled and monitored Jobs using AutoSys tool.
• Used Putty configuration Tool to connect Unix and run the commands.
• Transferred files using WinSCP from windows machine to Unix machine.
• Monitored application performance, server health, batch jobs, and infrastructure alerts using AppDynamics, ITRS Geneos tool.
• Monitored system performance using AWS CloudWatch, Prometheus, and Grafana.
• Raised and prioritized the tickets through service now and worked according to SLA.
• Done RCA checks to identify application issues before it impacts during business time.
• Performing report generation based on request received from Upstream & Downstream users.
• Took ownership of customer-reported issues, performed troubleshooting, coordinated with cross-functional teams, and ensured timely resolution within SLA.
• Created and maintained application support knowledge base articles, SOPs, and troubleshooting documentation for recurring incidents.
• Provided L2 production application support for critical banking applications, ensuring high availability and minimal business impact.
• Providing Weekly and Monthly incident trend reports to client manager and other dev managers.
• Continuous monitoring of the alerts received through emails to check if all the application servers and web servers are up by performing check day-to-day activity.
• Communicate workaround to be followed with SME until the issue/work order gets complete/resolve.
• Raising issues to development team and working with epic team closely for permanent fixes through calls.
• Collaborated with development teams to integrate DevOps best practices and enhance storage performance.

System Engineer at East Wind Footwear Pvt Ltd (2014-09 – 2022-03)

• Installed and supported hardware and software for desktops, servers and printers in end users of export and shipping teams.
• Written queries using joins, sub queries and group functions for generating MIS reports using Oracle DB.
• Extracted database reports for Material Inventory Software (MIS) and escalated system bugs to Development for remediation.
• Determined and alleviated hardware, software and network issues.
• Worked closely with end users to solve problems related to hardware and MIS software.
• Raised and prioritized the tickets through service now and worked according to SLA.
• Delivered software patches to network computers and performed regular data backups to for optimum security compliance.
• Worked independently while coordinating project work and support functions with other team members.
• Provide support during MIS UAT testing to Development team.
• Maintained documentation on configurations and maintenance using component labelling and technical diagrams.
• Maintaining the Backup network, hardware, software, files on a regular basis accordingly as per the company policies.

B.Tech in Information Technology – Karpaga Vinayaga College of Engineering and Technology (Anna University) (2008-09 – 2012-05)