Etl Developer Data Integration

Vaishnavi Sakharkar +91-950*******

ETL Developer ********************@*****.***

linkedin.com/in/vaishnavi-sakharkar-a252a3255

Pune, India

Career Objective:

Results-driven and detail-oriented ETL Developer with over 4 years of hands-on experience in designing, developing, and optimizing high-performance ETL workflows. Skilled in utilizing Talend, data integration, and transformation techniques to convert complex datasets into actionable insights. Proficient in data mapping, data cleansing, and performance tuning to ensure scalable, efficient solutions. Adept at collaborating with cross-functional teams to support business intelligence (BI) and data warehousing initiatives. Seeking to leverage technical expertise, problem- solving skills, and a strong understanding of data pipelines to drive impactfull data integration and analytics solutions in a forward-thinking organization.

Profile Summary:

Experienced ETL Developer with over 4.5 years of expertise in designing, developing, and optimizing high- performance ETL solutions. Highly proficient in SQL, with deep experience in writing complex queries, stored procedures, and performance tuning for large-scale data operations. Skilled in using Talend for seamless data integration, transformation, and migration across diverse systems and platforms.Adept at handling large-scale data warehouses and integrating data from multiple sources, ensuring efficient workflows and smooth data pipelines. Strong focus on data quality management, data cleansing, and troubleshooting complex data issues.Proficient in data visualization tools such as Tableau and Power BI, enabling the delivery of actionable business insights through interactive dashboards and reports. Demonstrated ability to translate business requirements into scalable, automated ETL processes while implementing best practices in data governance and data modeling.Committed to continuous improvement and innovation, leveraging the latest tools and techniques to support business intelligence, analytics, and enterprise data integration initiatives.

Work Experience:

TATA Consultancy Services (02/2021 - Present)

Project Details:

Project1 (04/2021 - 11/2022) Role: Talend and ETL Developer

ETL Development: Assisted in developing ETL processes using Talend to integrate sales data from multiple sources, including CRM systems and Excel spreadsheets, into a MySQL database. Focused on ensuring accurate and timely data consolidation for reporting purposes.

Data Transformation: Worked on transforming and cleansing raw sales data to align with the organization’s data standards. Applied data mapping and validation techniques to ensure consistency and accuracy across datasets.

Collaboration: Collaborated with senior developers and analysts to understand business requirements and refine ETL processes. Participated in team meetings to discuss data challenges and brainstorm solutions.

Testing and Troubleshooting: Involved in testing ETL workflows and resolving data issues under the guidance of senior team members. Gained experience in debugging Talend jobs and improving data pipeline reliability.

Expertise in managing TAC servers, job scheduling, documentation, testing, and Excel for effectiveproject execution.

Played a key role in optimizing the file transfer process resulting in a 30% reduction in data load time

Project2 (12/2022 – 05/2024) Role: ETL Developer

Data Integration: Designed and implemented ETL processes using Talend to integrate data from various sources, including Oracle, Salesforce, and flat files, into a centralized data warehouse. Ensured data accuracy, consistency, and availability for business reporting.

Data Transformation: Developed complex data transformation workflows to clean, standardize, and enrich raw data, optimizing it for downstream analytics and reporting. Leveraged Talend’s advanced components to streamline data processing and improve performance.

Collaboration: Worked closely with business analysts and data scientists to understand data requirements and translate them into effective ETL solutions. Participated in design sessions and provided input on data architecture and schema design.

Tableau Integration: Created data extracts and configured data sources in Tableau to support interactive dashboards and visualizations. Collaborated with the BI team to ensure that the data delivered met the needs of end-users, enabling real-time insights and data-driven decision-making.

Optimization and Maintenance: Continuously monitored and optimized ETL processes for performance improvements, reducing data load times by 30%. Implemented error handling and data quality checks to maintain the integrity of the data pipeline.

Project 3 (06/2024- current) Role : Data engineer

Data Integration & ETL Development: Leveraged strong ETL expertise to integrate and transform data from various sources including SQL Server, Excel, SharePoint, and CSV files. Built automated data pipelines using Talend to streamline ingestion and transformation processes, minimizing manual effort and improving data consistency .

Advanced SQL Usage: Utilized complex SQL queries for data extraction, transformation, and loading across different systems. Performed data cleansing, joins, aggregations, and performance tuning within SQL to ensure high-quality, ready-to-use datasets for reporting layers.

Data Modeling: Designed optimized star schema data models with well-defined fact and dimension tables to support analytical needs. Created calculated columns and KPIs using DAX in Power BI and LOD expressions in Tableau during experimentation.

Reporting & Visualization: Built interactive dashboards and reports in Power BI with features such as slicers, drill- downs, tooltips, bookmarks, and synced filters. Also explored Tableau to develop basic visualizations and understand dashboarding capabilities. Though exposure to Power BI and Tableau is limited, demonstrated the ability to create impactful visual insights and a solid foundation in BI tools.

Performance Optimization: Improved report performance through DAX optimization, aggregation strategies, and efficient data modeling. Used incremental data loads and query folding techniques to handle large datasets effectively.

Deployment & Collaboration: Published Power BI reports to the Power BI Service, implemented Row-Level Security

(RLS) for controlled access, and scheduled automated refreshes. Created shared workspaces for collaboration and provided basic training to end users for self-service analytics.

Education:

Bachelor's Degree (B.E – Electronics and Telecommunication)

College: Prof Ram Meghe Institute of Technology & Research Badnera, Amravati.

Duration: 2016 - 2020

CGPA: 8.2

12th Standard

College: Shivaji Science College Amravati.

Year: 2016

Percentage: 74%

Technical Skills:

SQL

Talend

ETL

Tableau

Power BI

Data Warehousing

C and C++

TAC Server

Python

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Achievements and Awards:

Best Team Award -TATA Consultancy Services

On The Spot Award - TATA Consultancy Services

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Tools:

Talend Open Studio

Tableau

Rally

Dbeaver

Github

Putty

Power BI Desktop

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Declaration:

I hereby assure you that all the details mentioned above are true and authentic to the best of my knowledge. I am held responsible for anything that is found incorrect. Place: Pune

Date: / / 2025

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