Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

Rajkumar Thangamurugan

Chennai

Summary

Results-driven Azure Data Engineer with extensive experience at Tata Consultancy Services, specializing in data migration and ETL processes. Proficient in Azure SQL,Azure Devops and Data Factory, I excel in optimizing database performance and automating maintenance tasks. A collaborative team player, I consistently deliver high-quality solutions that enhance operational efficiency.

Overview

11
11
years of professional experience
1
1
Certification

Work History

Azure Data engineer

Tata Consultancy service
01.2022 - Current

Database POD:

  • Implemented GHA automation pipelines for SQLVM provisioning, Compute upgrade pipeline for database configurations,Database copy and restore pipeline and Decommission of azure database products.
  • Implemented GHA automation pipelines for enabling eventhub streaming for all azure database product so that the resources can be onboarded to Grafana.
  • Implemented GHA automation pipelines to load GCP inventory data.
  • Automated security non-complaince report process to generate monthly report using Azure data factory.
  • Atomated a process to generate ANF volume data report using ADF and shared to storage team.
  • Analyzed and created AstraDB and Azure SQL MI alerts in the Grafana Dashboard.
  • Worked on Canary dashboard implementation for Azure cosmosDB and AstraDB.
  • Implemented automation solution to identify SQL local user which is a security risk and involved in removing the unused sql local user by co-ordinating with app owners.
  • Upgrade / Downgrade the database configuration depending on the use case.
  • Automated database maintenance activity like index rebuilds and statistics update based on table fragmentation.
  • Worked on SQL patching and vulnerability fix.
  • Implemented backup storage for Azure SQL and SQL MI.
  • Enabled EntraID auth on azure postgresql flexible server.
  • Created a Azure custom policy to handle the security non-compliance.
  • Support the app team for manual failover the servers,pre and post validation for windows patching.

Data Engineer

Tata Consultancy service
04.2021 - 01.2022

DB Acceleration:

  • In the E2B Migration project, we have been involved in migrating servers from on-premises to the Azure cloud.
  • Utilized Azure Data Factory and SQL Server Migration Assistant for data migration.
  • Migrated data from SQL, Oracle, and DB2 sources to Azure SQL Server.
  • Developed table partitions for large datasets to enhance performance.
  • Converted stored procedures, views, and triggers to comply with Azure SQL syntax.

Senior Database developer

UST Global
06.2020 - 04.2021

Gateway Health Plan - ODS

  • Gateway Health Plan (GHP) is currently implementing Health Rules Payor (HRP) as the new core claim adjudication system to replace their existing system. The backend of HRP is an On-Line Transaction Processing (OLTP) database. The OLTP is a Health Edge proprietary database, which is highly normalized and optimized for transactional processing. The data in OLTP is then automatically extracted to fill the Health Rules Data Warehouse (HRDW). HRDW is usually served as the data source by the downstream processes for reporting, analyzing, and other business use. The HRDW data model makes use of a Star Schema that consists of Dimension and Fact tables, including Code Tables which are highly normalized. The tables are joined with the help of surrogate keys. As there are many tables involved with highly normalized organizations, it usually requires many joins to arrive at the required information in a meaningful way. This will make the access of Health Edge information by downstream applications inefficient, as it consumes more time to retrieve the data. It also means that every application that requires the data from HRP may have to incorporate similar complicated logic to arrive at the desired information. To address these issues, an ODS is planned to be modelled and implemented, where data required by the downstream applications will be in a more readily available form, thus will help all downstream applications to consistently get the same derived results with more efficient way of data access.
  • Involved in coding and doing exhaustive unit testing of programs written and was involved in incorporating changes to the existing stored procedure to meet the new enhancement/bug fix requirements of the client.
  • Worked on migrating the data from oracle to sql server using attunity replicate.
  • Creating new interfaces/mapping for extracting data from HRDW to intermediate tables using stored procedures and Attunity compose.
  • Understand the new health care product: Health Rules Payor

Senior Associate

Cognizant Technology Solution
01.2019 - 05.2020

RBE - Well mark, Inc.

  • Creating new interfaces for extracting data from Facets to External systems using daily batch jobs using SDLC and Agile Development Methods as part of the migration.
  • Responsible for handling numerous change requests and enhancements.
  • UAT and support during deployment in PROD.

Associate

Cognizant Technology Solution
05.2016 - 12.2018

LOB Migration-Public Exchange

  • Developed new integration code, ensuring thorough unit testing for quality assurance.
  • Implemented client-required changes into existing integrations for improved functionality.
  • Documented logical processes following analysis of program modifications.
  • Updated Facets program interfaces while executing critical program enhancements.
  • Maintained technical design documents and conducted detailed unit testing procedures.

Programmer Analyst

Cognizant Technology Solution
08.2014 - 04.2016

Cigna HealthSpring Letter Development

  • Involved in coding and doing exhaustive unit testing of programs written and was involved in incorporating changes to the existing stored procedure to meet the new enhancement/bug fix requirements of the client.
  • Demonstrated expertise utilizing ETL tools using SQL Server Integration Services (SSIS).
  • Ability to code and implement complex business rules in SQL, Views, Triggers and Stored Procedures.

Education

B.E - EEE

Vel Tech Multi Tech Dr.RR Dr.SR Engineering Colleg
Chennai
03-2014

Skills

  • Azure Cloud expertise: Azure SQL, PostgreSQL, MySQL, CosmosDB
  • DevOps practices: Terraform, GitHub Actions, Azure CLI ,python and powershell
  • Database management: Query optimization ,backups/recovery,sql patching and index maintenance
  • Data integration tools: Azure Data Factory, Databricks, SSIS,Attunity compose and replicate
  • Database design,devolpment and migration
  • Version control systems: TFS and Git in Azure DevOps
  • Security management: Azure Key Vault and storage accounts
  • Familiarity with MongoDB Atlas and Redis

Certification

  • AZ-900 Microsoft Azure Fundamental certification.

Timeline

Azure Data engineer

Tata Consultancy service
01.2022 - Current

Data Engineer

Tata Consultancy service
04.2021 - 01.2022

Senior Database developer

UST Global
06.2020 - 04.2021

Senior Associate

Cognizant Technology Solution
01.2019 - 05.2020

Associate

Cognizant Technology Solution
05.2016 - 12.2018

Programmer Analyst

Cognizant Technology Solution
08.2014 - 04.2016

B.E - EEE

Vel Tech Multi Tech Dr.RR Dr.SR Engineering Colleg
Rajkumar Thangamurugan