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Piyush Kumar

@piyushkumar21

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I build scalable ETL pipelines, data warehouses, and AI-driven analytics solutions.

India

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What I'm looking for

I'm looking to build scalable data platforms and AI-driven analytics solutions that improve operational efficiency, while partnering with business and technical teams to turn complex requirements into reliable data products.

At Wolters Kluwer, I design enterprise ETL pipelines and data engineering workflows using Informatica, SQL, and Python across Oracle, SQL Server, MySQL, and Salesforce data.

I've improved SQL query performance by up to 40% through indexing, partitioning, and query tuning, while building automated validation frameworks that strengthen data integrity and reliability.

I implement Informatica MDM solutions, reusable ETL components, and warehouse integrations for structured and unstructured data. I also use Python to automate transformation, cleansing, API integration, and real-time ingestion workflows.

My earlier software engineering work spans railway signalling, banking, and investment applications. I also build AI-driven analytics products, including RAG-based Jira intelligence and a conversational business analytics platform powered by Azure OpenAI, Flask, and schema-aware SQL.

Experience

Work history, roles, and key accomplishments

Current

Data Engineer and Analyst

Current

Wolters Kluwer

Aug 2023 - Present (3 years 1 month)

Designed and optimized enterprise-scale ETL pipelines and data engineering workflows using Informatica, SQL, and Python. Implemented Master Data Management solutions and improved SQL performance by up to 40%.

ETL Informatica PowerCenter Informatica MDM SQL Python Oracle SQL Server MySQL Salesforce Data Warehouse Data Quality Data Validation Data Profiling Root Cause Analysis API Integration

Software Engineer

Alstom

Sep 2022 - Jul 2023 (10 months)

Developed a Python-based test tool to control RBC flow, originally written in ADA, and optimized SQL Server performance. Gained in-depth knowledge of railway signalling systems.

Python ADA SQL Server Indexing Query Tuning Stored Procedures Testing Automation Production Support SLA Management

Full Stack Developer

Headstrait Software's

Jun 2019 - May 2021 (1 year 11 months)

Developed enterprise applications across banking and investment domains, focusing on backend services, database integrations, and reporting solutions. Collaborated with product owners and stakeholders to deliver scalable technology solutions.

SQL Backend Development Database Integration Reporting Agile Scrum Stakeholder Management