Summary
Overview
Work History
Education
Skills
Certification
Timeline
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JANAKI DEVI POLISHETTY

Senior Database Administrator
Vancouver,BC

Summary

Dedicated Technology Lead known for rapidly solving technical issues before operational interruptions occur. Takes ownership of entire client environment and maintain the uptimes. Eager to collaborate with junior staff and cross functional teams to achieve business goals and maintain streamlined operations.

Overview

10
10
years of professional experience
4
4
Certifications
1
1
Language

Work History

Technology Lead

Infosys Limited
10.2021 - Current

Client : Lam Research

  • Handled SQL server installations and configurations of SQL server 2008, 2012, 2014, 2016, 2017, 2019 and SQL 2022
  • Led SQL server migration project, collaborate with application teams , planning migrations/upgrades and providing monthly status updates within agreed timeframes
  • Delivered comprehensive technical documentation of NetApp Snap Center including design specifications and user guides for easy reference by colleagues
  • Provided mentorship to junior team members, fostering professional growth and strong work ethics in the work place.
  • Troubleshoot complex issues impacting production systems performance, applying root cause analysis techniques to prevent future occurrences.
  • Enhanced application performance for increased user satisfaction by identifying the problematic SQL queries and provided recommendations to improve the queries.
  • Collaborated with different application teams to discuss on technical database requirements and help them to setup appropriate databases
  • Participated in verifying compliance with service level agreements by maintaining technical uptime levels.
  • Setup high availability solutions like Always On and replication Setup database maintenance plans to re-organize indexes, re-indexing and update the index statistics on the production databases
  • Reduced system downtime by implementing proactive monitoring and maintenance procedures
  • Fixing issues in transaction replication Directly assisted business teams in migrating the PostgreSQL database hosted on Linux to Azure PostgreSQL database
  • Automate the SQL 2022 installation using SCCM
  • Provided the costing details of Azure databases to application teams and encourage them to setup the databases in Azure (Dbaas)
  • Successfully migrated several critical tier 1 databases to highest version of SQL with ZERO downtime by using cluster rollover upgrade concept
  • Maintained full compliance with best practices through rigorous security audits and vulnerability assessments
  • From database end handled the DR exercise and made sure all SQL servers are up healthy
  • Effectively used incident, change and problem management using ServiceNow following ITIL frame work


Environment: MSSQL server 2008/2012/2014/2016/2017/2019, Windows Server 2008 R2; Oracle 11g, IBM-AX, Linux

Tools: NetApp Snap Center for SQL, SolarWinds, SCOM, Fog Light, Azure Log Analytics, SMSQL

Technology Analyst

Infosys Ltd.
11.2016 - 09.2021

Client : Lam Research

  • Monitored the backup status reports, failed job reports
  • Increased database uptime through proactive monitoring of alerts and swift resolution of potential issues.
  • Managed SQL server upgrades, ensuring minimal impact on daily operations while enhancing overall system capabilities.
  • Established effective communication between cross functional teams promoting collaboration across teams to achieve shared goals more efficiently
  • Provided technical recommendations to optimize SQL queries
  • Promptly resolved technical issues to minimize server downtime
  • Analyzed the existing databases and recommended enhancements to maintain compliance

Senior Systems Engineer

Infosys Ltd.
06.2015 - 10.2016

Client : PriceWaterHouseCoopers

  • Provided DBA Support to all environments involved in PwC
  • Managed Dev, Test and Production servers
  • Fixed performance related issues and identified the blocks, slow running queries using DMV’s and DBCC commands
  • Identified the Indexes with high fragmentation and de-fragmented the indexes to avoid long running of SAP jobs
  • Managed security of SQL Server 2008, 2008R2, 2012 and 2014 by creating database users, roles and assigning proper permissions according to business requirement
  • Proficient with SQL Server tools including Management Studio, SQL server agent
  • Involved in SQL server technologies Replication, Clustering
  • Creating weekly and monthly reports for database growth and performance statistics
  • Troubleshooting the performance issues
  • Worked on Net backup SQL client to perform backup and restore of databases
  • Ensuring that all databases are backed up on regular basis by monitoring full, differential and transaction log backups
  • Fixing backup failures, address and implement resolutions
  • Worked with Microsoft in critical situations to resolve the issues
  • Key point of contact for Weekly/Monthly reports (SLA, IMS etc.) Good Knowledge on incident, Problem & change management
  • Resolving Space management issues like database and log space issues
  • Monitoring SQL server performance using profiler to find performance and deadlocks
  • Verifying all instances are up and running as per the checklist
  • Creating Indexes on tables to improve the performance as per Dev/App team request
  • Recovering the databases from backup in disaster situations
  • Performing SQL server daily health check and preparing a report based on it
  • Monitoring Disk Space of all the Servers and freeing up space as per SQL Server i.e
  • Older Backups, Unused Files etc
  • Handling Outage Notifications accordingly and following the process during production maintenance/production down issues


Tools: SM9, Net backup SQL Client

Systems Engineer

Infosys Ltd.
10.2014 - 05.2015

Client : Baker Hughes

  • Setting up and troubleshooting replication
  • Worked with SQL server 2008 in place and side by side upgrade from SQL server 2005
  • Worked on project for setting up DB mirroring and troubleshooting
  • Successfully implemented capacity planning for different servers
  • Experience working with data-tier application DAC for migration Experience
  • working with SQL Database Migration Wizard SQL Azure MW and Azure SQL Database Preview v12
  • Worked on setting up of active-active clusters
  • Implementation of SQL principle, securable, permission, roles and authentication modes as a part of security policies for various categories of users
  • Database, Logins, Job and other DB object Backups and Restoration of the same
  • Applying service packs and security patches for the servers to the latest release available in the market

Education

Masters -

Osmania University
Hyderabad
06.2014

Bachelors -

JNTU
Hyderabad
06.2012

Skills

    Database performance tuning

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Certification

Microsoft certified professional in Administering Microsoft SQL Server 2012 databases

Timeline

Technology Lead

Infosys Limited
10.2021 - Current

Technology Analyst

Infosys Ltd.
11.2016 - 09.2021

Senior Systems Engineer

Infosys Ltd.
06.2015 - 10.2016

Systems Engineer

Infosys Ltd.
10.2014 - 05.2015

Masters -

Osmania University

Bachelors -

JNTU
JANAKI DEVI POLISHETTYSenior Database Administrator