---
title: "mahesh Bonthu - Senior Database Administrator in Singareni | Tal"
description: "Meet mahesh Bonthu, - Senior Database Administrator AWS Redshift, RDS ADMIN& Oracle (10g–12c) Enterprise HA/DR, Performance Tuning & Automation 11+ Years Experience based in Singareni."
image: "https://tal.club/meet/mahesh-bonthu/share-image"
---

# mahesh Bonthu on Tal

## Headline

\- Senior Database Administrator AWS Redshift, RDS ADMIN& Oracle \(10g–12c\) Enterprise HA/DR, Performance Tuning & Automation 11\+ Years Experience

## About

I am an experienced AWS Redshift Administrator and Oracle Database Administrator with over 11 years of expertise in managing large\-scale, mission\-critical database ecosystems across banking, consulting, and global enterprise organizations\. My core strengths include Redshift provisioned and serverless cluster administration, performance optimization, high\-availability configurations, migrations, automation, and advanced Oracle database management\. I specialize in AWS Redshift, RDS, Oracle 10g/11g/12c, RAC, Data Guard, GoldenGate, RMAN, WLM/QMR, and performance tuning using AWR/ADDM/ASH\. I have extensive hands\-on experience in cluster configuration, COPY/UNLOAD pipelines, data sharing, Zero\-ETL integration, and automating maintenance tasks such as Vacuum, Analyze, backups, and monitoring using CloudWatch\. My work ensures consistent uptime, strong performance, and secure data operations in 24/7 production environments\. Across my career, I have successfully led complex environment transitions, optimized workloads during peak demand, resolved high\-priority production issues, and supported multi\-environment database operations from development through production\. I have also contributed to automation initiatives, streamlined database processes, enhanced stability, and collaborated with global teams to ensure smooth delivery and SLAs\. With a strong foundation in Linux/Unix, shell scripting, SQL/PL\-SQL, and cloud\-native database tools, I continuously focus on building scalable, reliable, and performance\-driven database platforms\. I am passionate about solving critical data challenges and always open to connecting with professionals working in cloud data engineering, database operations, and enterprise data management\.

## Location

Singareni

## Work experience

Senior Database Administrator at Tata Consultancy Services, Feb 2025 \- Present · 1 yr 3 mos, Hyderabad, Telangana, India, Tata Consultancy Services, Hyderabad\. AWS Redshift DBA & RDS ADMIN Feb2025\- present • Monitoring clusters on console & databases & performance & alering using crontab metrics by creating Cloud watch alarms & dashboards & crontab jobs • Taking transitions from other vender to get stable environment\. • Configuring multi cluster architecture for AWS Redshift Provesend & server less clusters\. • Have good knowledge of AWS Redshift Architecture, Distribution styles and sort keys\. • Identifying root blocker, high CPU, memory usage, • WLM configuration AUTO & MANVAL to define the WLM rules\. • Utilized ClickHome database to manage client records, track construction progress, and streamline workflow for residential building projects\. • Customized ClickHome modules to align with business requirements, improving data accuracy and reporting efficiency by 30% • configuration, downsizing or resizing, modifying & cloning cluster from Console\. • Configuring data\-share for data\-refresh and ZERO\-ETL Integration\. • Unload & copy traditional refresh using command line utility\. • Object migrations & data migrations from PROD to QA & DEV vice versa\. • Creating database, tables, views & synching them between different environments • Security management: Creating users and granting access to users asrequired\. • Executing scripts on databases, Performing DDL & DML operations as per requirement\. • Troubleshooting & performance tuning\. • Verifying & terminating long running queries, killing idle sessions • Monthly cleanup activities like dropping backup tables from databases for releasing space\. • Backup & Recovery activities like taking cluster snapshots & restoring them, restoring tables\. • Data sharing, AWS Redshift Spectrum and Workload management • Database maintenance activities, Vacuum, Analyze • Basic knowledge in Linux commands and shell scripting to automate processes

Oracle Database Administrator & AWS Redshirt administrator\. at NTTDATA, Nov 2021 \- Jan 2025 · 3 yrs 3 mos, Hyderabad, Telangana, India, • Administered AWS Redshift clusters \(DC2/DS2/Server\-less\) and RDS instances, ensuring optimal performance, availability, and scalability\. • Monitoring and managing SPICE \(Super\-fast, Parallel, In\-memory Calculation Engine\) capacity\. • Configuring permissions for datasets, analyses, and dashboards for quick\-sight\. • Automated data loading and transformation using COPY, UNLOAD, S3 integration, and Data Pump utilities\. • Implemented user/role management and cross\-cluster data sharing using Redshift Data share\. • Tuned queries using WLM and performed performance analysis using Vacuum/Analyze operations\. • Supported DevOps pipelines through Jenkins\-based CI/CD workflows for schema deployments and patching\. Key Achievements: • Improved performance and stability across critical applications during peak workloads\. • Ensured 24/7 reliable database support and reduced incident recurrence through effective root cause analysis\.

Oracle DBA at Barclays Global Service Centre at Barclays Investment Bank, Dec 2016 \- Nov 2021 · 5 yrs, Pune, Maharashtra, India, Installed, configured, and managed Oracle databases across Linux and Windows environments\. • Performed AWR/ADDM reporting, SQL tuning, and optimization of database workloads\. • Managed backup and recovery using RMAN; executed full and incremental backup strategies\. • Supported Data Guard and RAC environments for high availability and disaster recovery\. • Handled table space management, data file resizing, and archive log maintenance\. • Administered database migrations, refreshes, and patching using OPatch utility\. • Developed scripts to automate database health checks and maintenance routines\. • Provided production and non\-production support with strict adherence to SLAs\.

Oracle DBA at MBit Computraining Pvt\. Ltd\., Sep 2015 \- Dec 2016 · 1 yr 4 mos, Installed and configured Oracle 10g/11g/12c environments\. • Managed daily/weekly/monthly backups, monitoring, and system health checks\. • Performed database restore operations, space management, and archive log cleanup\. • Provided support for incidents, changes, and problem tickets\. • Executed migrations, patching, and database refresh activities\.

Jr oracle dba at Jain Hydraulics, Feb 2015 \- Sep 2015 · 8 mos, Bengaluru, Karnataka, India, Installed and configured Oracle 10g/11g/12c environments\. • Managed daily/weekly/monthly backups, monitoring, and system health checks\. • Performed database restore operations, space management, and archive log cleanup\. • Provided support for incidents, changes, and problem tickets\. • Executed migrations, patching, and database refresh activities\.

## Education

Master of Computer Applications \- MCA, Master of computer applications, Osmania University

[View the original profile](https://tal.club/meet/mahesh-bonthu)

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