TARAK KAR
New Delhi
Summary
I have over 12 years of experience as a software engineer and over 8 years as a lead data engineer. I have extensive expertise in Data Modeling, Data Warehouse, Cloud data solutions, and analytics tools. My contributions have substantially improved operational efficiencies and informed strategic business decisions, leading to increased productivity and profitability.
Overview
13
13
years of professional experience
Work History
Lead Data Engineer
Tata Consultancy Services
Gurgaon
11.2022 - Current
- Led the migration of on-premises legacy data systems to cloud-based data warehouses, resulting in a significant decrease in operational costs and improvement in data retrieval times.
- Implemented Snowflake cloud data warehouse which enhanced data analytics and reporting capabilities for cross-functional teams, supporting an increase in data-driven decision-making.
- Implemented a new E-R modeling system for efficient database structuring that streamlined data flow and reduced redundancy, resulting in a significant increase in productivity for the data analytics team.
- Designed and maintained multiple data marts, enabling tailored data views which facilitated user-specific analysis, greatly enhancing the usability of data resources organization-wide.
- Automated the extraction, transformation, and load processes (ETL) using Airflow, Python, Shell Script and SQL.
- I have designed multiple data processing frameworks for monitoring ETL jobs and implementing data security.
Lead Data Engineer
Unvired Inc
Bangalore
08.2016 - 11.2022
- Led the development of scalable big data processing platforms, handling over 100TB of data weekly, and enhancing data analytic capabilities.
- Built data platform solutions for SAP-based customers to execute plant maintenance, material management, sales, and distribution. Also performed data analytics on SAP data, enabling them to conduct regular preventive maintenance and significantly reduce operating costs.
- Developed multiple Data Lake solutions in AWS using S3, Glue, Athena, Lambda, EMR, and PySpark for SAP-based customers who perform various transformations on data outside SAP in batch and finally move it to SAP. This significantly reduced the operating cost.
- Collaborated with cross-functional teams to translate business requirements into technical data solutions, aiding in the launch of major product lines.
- Devised data validation protocols and error identification mechanisms to ensure a 99.9% accuracy rate in data reporting.
- Led the development of multiple data collection and management solutions using Python-based microservices, PostgreSQL, and S3.
Senior Data Engineer
Unvired Inc.
Bangalore
08.2011 - 08.2016
- Created multiple on-premise data solutions using Python-based microservices, PostgreSQL, MySQL, MSSQL, and ASP.Net Core with Docker.
- I have developed multiple SAP and non-SAP-based ERP solutions in Android, Windows, and Ionic platforms.
Education
Post Graduate Program in Artificial Intelligence and Machine Learning -
The University of Texas at Austin
Location05.2022
Bachelor of Engineering - Computer Science -
Visvesvaraya Technological University
Bangalore, India09.2010
Skills
- Snowflake
- Data Warehousing
- Data Modeling
- AWS S3 Glue Athena EMR Redshift
- PySpark
- Airflow
- Kafka
- ERWin
- PostgreSql
Accomplishments
- Optimized Data Retrieval: Revolutionized the data extraction process, specifically by optimizing query strategies, which reduced data retrieval times by 50%.
- Reduction in Operational Costs: Played a key role in infrastructure migration that led to a significant 40% reduction in operational costs.
- Automation of Data Processes: Successfully automated ETL processes, resulting in a 50% reduction in data preparation time.
- Innovative Reporting System: Developed a comprehensive reporting system to provide actionable insights, increasing operating success by 15%.
Languages
English
Timeline
Lead Data Engineer
Tata Consultancy Services
11.2022 - Current
Lead Data Engineer
Unvired Inc
08.2016 - 11.2022
Senior Data Engineer
Unvired Inc.
08.2011 - 08.2016
Post Graduate Program in Artificial Intelligence and Machine Learning -
The University of Texas at Austin
Bachelor of Engineering - Computer Science -
Visvesvaraya Technological University
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