NISHANTHI S
Chennai
Summary
- Offering 5 Plus years professional experience as an Application Administrator and Application Support professional, managing enterprise-level applications backed by Oracle Database.
- Strong expertise in production support, incident, change, and problem management, SQL troubleshooting, performance monitoring, patch management, and software upgrades.
- Proven ability to analyze application and system logs, manage user access, and ensure high availability, data integrity, and compliance in mission-critical environments.
- Skilled in proactive issue resolution and effective collaboration with development, infrastructure, and cross-functional teams to maintain stable operations.
- Successfully contributed to on-premises to cloud application migrations, ensuring secure deployments, minimal downtime, and improved application lifecycle management and operational efficiency.
Overview
9
9
years of professional experience
Work History
Lead - Application Administrator
Computer Age Management Services Limited
Chennai
04.2023 - Current
- Managed and supported enterprise-level, distributed applications, ensuring high availability, optimal performance, and minimal downtime through proactive monitoring and incident management.
- Provided Tier 2 and Tier 3 application support, resolving complex issues related to performance degradation, service outages, security vulnerabilities, and integration failures.
- Performed advanced incident troubleshooting by analyzing application logs, SQL queries, configurations, and network dependencies to identify and resolve root causes.
- Administered and optimized application infrastructure, including virtual machines, containerized environments, and orchestration platforms to ensure scalability and reliability.
- Implemented and managed load balancing and traffic routing using GSLB and Nginx, including SSL termination, reverse proxy configuration, and performance tuning across multiple data centers.
- Automated infrastructure provisioning and application deployments using infrastructure-as-code, scripting tools, Jenkins pipelines, and PM2 for Node.js process management.
- Supported and optimized Oracle databases and .NET applications, including SQL tuning, performance analysis, and IIS configuration, to ensure smooth application operation.
- Led and mentored a team of application support engineers, while enforcing security best practices, access controls, compliance standards, and driving continuous service improvement.
Application Support Executive
Computer Age Management Services Limited
Chennai
01.2021 - 03.2023
- Provided first-line (L1/L2) application support to users, troubleshooting issues related to application functionality, UI defects, and data accuracy, and ensuring timely resolution within SLAs.
- Collaborated closely with development, system administration, and QA teams to investigate issues, perform root cause analysis, and escalate complex problems when required.
- Managed application logs and error-tracking systems, performing log analysis to identify recurring issues, and support permanent fixes.
- Administered user access management, including account provisioning, permission changes, and resolution of access-related issues, in compliance with security policies.
- Supported Linux-based environments (RHEL, Ubuntu, CentOS), including system administration tasks such as software updates, change control, and routine maintenance.
- Deployed and supported Java-based applications on Apache Tomcat and containerized workloads using Docker, ensuring application stability, performance, and reliable operations.
Senior Executive
Computer Age Management Services Limited
Chennai
09.2016 - 12.2020
- Managed end-to-end Mutual Fund Redemption processing, including request validation, transaction execution, settlement tracking, and confirmation within defined SLAs.
- Handled Direct Rejection (DR) cases by identifying invalid, incomplete, or non-compliant requests based on regulatory and business rules.
- Performed comprehensive pre-check validations (KYC, folio status, bank mandate, lien/lock-in, cut-off time, signature verification) to ensure transaction accuracy.
- Monitored redemption workflows and resolved exceptions related to failed, delayed, reversed, or rejected transactions.
- Conducted data verification and reconciliation across application systems, RTA platforms, and banking settlement files to ensure accurate fund settlement.
- Coordinated with operations teams, RTAs, custodians, and banking partners to resolve discrepancies while maintaining audit trails, compliance standards, and data confidentiality.
Education
B.E - Computer Science And Engineering
Gojan School of Business And Technology
Chennai05-2016
Skills
- Application Administration: Enterprise application support, issue troubleshooting, performance optimization, patching, configuration, and upgrades
- Monitoring & Logging: system log analysis, application health monitoring
- Databases: Oracle– performance tuning, query optimization, and troubleshooting
- Operating Systems: Linux (RHEL, CentOS, Ubuntu), Windows Server
- Networking: TCP/IP, DNS, VPN, load balancing, firewall rules, subnetting, and routing
- Process Management: Incident management, change management, access provisioning, documentation, SLA adherence
- Documentation: MS Excel, Word, PPT
CERTIFICATIONS
- Azure Solution Architect, Microsoft Azure
PROJECT ACHIEVEMENTS
- Oracle 19c Client Migration: Successfully migrated Oracle clients across Linux and Windows–based application environments, ensuring compatibility, stability, and minimal downtime.
- End-of-Life (EOL) Platform Migrations: Executed multiple OS upgrade initiatives, including Windows Server 2012 to 2022, Ubuntu 16.04 to 20.04, and Ubuntu 20.04 to 22.04, ensuring compliance, security, and application continuity.
- Security Enhancements: Identified, analyzed, and remediated security vulnerabilities in production applications, significantly improving system security, stability, and compliance posture.
- Cloud Migration Initiatives: Played a key role in migrating application workloads from on-premises infrastructure to cloud platforms, ensuring secure deployment, compatibility, and minimal business impact.
- CAMSPay Reconciliation Project: Successfully contributed to the CAMSPay Reconciliation (CAMSPay Recon) project, ensuring accurate reconciliation of high-volume mutual fund payment transactions across CAMS, banking partners, and internal systems.
- Airtel Messaging Migration: Supported the migration of enterprise messaging services from Sinch to Airtel by validating end-to-end SMS flows, delivery reports (DLR), and acknowledgements, ensuring seamless communication across all mutual fund schemes with minimal disruption.
Timeline
Lead - Application Administrator
Computer Age Management Services Limited
04.2023 - Current
Application Support Executive
Computer Age Management Services Limited
01.2021 - 03.2023
Senior Executive
Computer Age Management Services Limited
09.2016 - 12.2020
B.E - Computer Science And Engineering
Gojan School of Business And Technology