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Fiverr Pro
English
$
USD
I will write, fix and optimize sql queries and clean your dataset
Data Engineer
Hi, I'm Harshil — a Data Engineer with 4+ years building data pipelines, ETL automation, and dashboards for banking and enterprise data teams. I work daily with Python, SQL, PySpark, Spark, Kafka, and...
About this Gig
Need clean data or SQL that actually works? I'm a Data Engineer with 4+ years of experience writing and optimizing SQL and cleaning messy datasets for production systems.
I can help you:
- Write new SQL queries (joins, aggregations, window functions, CTEs)
- Fix and debug queries that return wrong or slow results
- Optimize slow queries so they run faster
- Clean, deduplicate and standardize messy CSV/Excel/database data
- Turn raw data into a clear, report-ready table
Works with MySQL, PostgreSQL, SQL Server, and Python (pandas) for cleaning.
You'll get working, documented code and a quick explanation so you can reuse it. I reply fast, deliver on time, and keep your data private.
Not sure which package fits? Message me your dataset or problem and I'll tell you exactly how I'd approach it no obligation.
Database type:
Key-value database
•
Relational database
Platform:
Hadoop
•
MySQL
•
PostgreSQL
•
SQL Server
Expertise:
Data warehouse
•
Design
•
SQL
•
NoSQL
FAQ
What do you need from me to start?
Your data file (CSV/Excel) or database details, and a short description of the result you want.
Is my data kept private?
Yes — I never share or reuse your data.
Which databases do you support?
MySQL, PostgreSQL, SQL Server; cleaning also via Python/pandas.
Can you optimize an existing slow query?
Yes — send the query and table structure and I'll speed it up.
