# Vanshika Nigam

> ETL & Data Engineer, Accenture

Vanshika is an application development associate at Accenture in Gurugram, where she designs and optimises data integration workflows using Informatica PowerCenter. Her day-to-day covers SQL query building, data mapping and cleansing, and tracing performance bottlenecks across systems — work that reduced data-related defects by 20% on her project. She also works with Snowflake, DBT, Control-M and StreamSets. She holds a BTech in Information Technology from PSIT College of Engineering and is a Microsoft Certified Azure Fundamentals holder.

- **LinkedIn:** https://www.linkedin.com/in/vanshikanigam01
- **Expertise:** SQL, ETL pipelines, Snowflake, Data analysis

## Articles
- [The 5 Ps of Data Science: Where a Busy Data Team Stalls](https://www.1stepgrow.com/articles/5-ps-of-data-science/)
- [Advanced Data Analytics Course: Choosing One Beyond Dashboards](https://www.1stepgrow.com/articles/advanced-data-analytics-course/)
- [Data Analytics Course with Python: Online Options Worth Paying For](https://www.1stepgrow.com/data-analytics-course-with-python-online/)
- [Data Science Tools and Techniques: The Stack That Actually Gets Used](https://www.1stepgrow.com/tools-and-techniques-for-data-science/)
- [NumPy Tutorial for Beginners: NumPy Arrays in Python (Part 1)](https://www.1stepgrow.com/articles/numpy-tutorial/)
- [NumPy Indexing and Slicing: Views, Masks and Fancy Indexing (Part 2)](https://www.1stepgrow.com/articles/numpy-indexing-slicing/)
- [NumPy Broadcasting in Python: Rules and Common Bugs (Part 3)](https://www.1stepgrow.com/articles/numpy-broadcasting/)
- [NumPy Aggregation, Sorting and Linear Algebra in Python (Part 4)](https://www.1stepgrow.com/articles/numpy-aggregation-functions/)
- [Plotly Tutorial for Python: Basic Interactive Charts (Plotly Part 1)](https://www.1stepgrow.com/articles/plotly-tutorial/)
- [Data Scientist Roadmap 2026: A Seven-Month Path from SQL to Offer](https://www.1stepgrow.com/articles/data-scientist-roadmap-2026/)
- [Advanced Plotly Charts: Subplots, Animation and 3D (Plotly Part 2)](https://www.1stepgrow.com/articles/advanced-plotly-charts/)
- [Advanced Matplotlib Styling and Customisation in Python (Part 5)](https://www.1stepgrow.com/articles/matplotlib-styling-customization/)
- [Python Numeric Data Types: int, float, Decimal and When to Use Each](https://www.1stepgrow.com/articles/python-numeric-data-types/)
- [Data Analyst vs Data Scientist: Which Role to Target First](https://www.1stepgrow.com/articles/data-analyst-vs-data-scientist/)