I will build a python etl script to clean merge and consolidate your CSV data
Data and Software
Niveau 1
Voldoet aan bepaalde prestatiecriteria en toont een sterke potentie op de marktplaats.
Over deze dienst
Do you have spreadsheets from different teams, tools, or departments each with different column names, date formats, duplicate records, and dirty values? Manually cleaning and merging them is slow and error-prone. I'll automate the whole thing in Python + Pandas.
What I do
I build a reusable ETL workflow that:
- Extracts data from all your CSV/Excel files in one run
- Maps different source column names into one standard schema
- Cleans & standardizes trims whitespace, fixes title case, converts all dates to YYYY-MM-DD, strips $/units and converts amounts & quantities to clean numbers
- Standardizes categories (e.g. status values one consistent set)
- Validates records and drops rows missing required fields
- Removes duplicates so each record appears once
- Consolidates everything into a single, UTF-8, reporting-ready master file
What you get
- A clean, well-documented Python script you fully own
- Your consolidated output file (CSV/Excel)
- A README with install + run instructions
- Code that's reusable on next month's files no rework
Why me
- Specialist in data engineering & ETL, not a generalist
- Clean, readable, commented code (no black boxes)
- Consistent, repeatable results every run
- Fast replies, on-ti
Mijn portfolio
Veelgestelde vragen
Will the script work on next month's files too?
Yes — Standard and Premium packages deliver a reusable script that handles files with the same structure, so you can re-run it anytime without coding.
My files have different column names — is that a problem?
Not at all. Field mapping into a single standard schema is a core part of the service.
2 reviews van deze dienst
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Specificering van de beoordeling
- Communicatieniveau van de freelancer
- Kwaliteit van de levering
- Waarde van de levering
Sorteer op
T tusharethara

India
crazzyyy work
US$ 100-US$ 200
Prijs
3 dagen
Looptijd
Nuttig?M mayankshekharrr

India
Delivered the complete work within the timeline.
US$ 200-US$ 400
Prijs
4 dagen
Looptijd
Nuttig?
2 reviews van deze dienst
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Specificering van de beoordeling
- Communicatieniveau van de freelancer
- Kwaliteit van de levering
- Waarde van de levering
Sorteer op
T tusharethara

India
crazzyyy work
US$ 100-US$ 200
Prijs
3 dagen
Looptijd
Nuttig?M mayankshekharrr

India
Delivered the complete work within the timeline.
US$ 200-US$ 400
Prijs
4 dagen
Looptijd
Nuttig?

