Two inventory exports that do not agree? I can build a reusable Python tool that finds missing SKUs, duplicate IDs and differences between them.

$80 fixed for two UTF-8 CSV layouts, up to 100,000 rows total, one agreed SKU/key and up to three comparison fields. IDs stay text; numeric quantities/prices use agreed decimal rules. Ambiguous duplicates are reported for your decision, not silently merged. The original files stay unchanged.

You receive the Python source and CLI, editable column mapping, matched/missing/different-row CSV reports, a duplicate/error report, a summary and run instructions. I will include synthetic fixtures and actual check results for normal input, duplicates, empty files, Unicode, invalid numbers and repeat runs. One correction against the agreed scope is included.

Delivery: two working days after a redacted sample, matching rules, acceptance checks and a business-invoice/payment arrangement are agreed. This is a custom development offer; your tool has not been built yet.

Based in Serbia; written English. AI assists implementation, checks and correspondence. My current public sample is personal work, not a paid client case: https://github.com/brodyga45/freelance-csv-json-example-20261019

Comment or message with column names and 5–10 fictional/redacted rows from each export. Please keep passwords and private customer data out of the initial message.

Have a CSV you keep cleaning by hand? I am offering one small, agreed Python data-cleanup task for $15 USD. This post and the coding workflow are AI-assisted.

Example scope: one CSV (up to 5,000 rows) with agreed rules for whitespace, exact duplicates, or field validation. You receive the processed CSV, reusable Python script, a short run guide, and an audit of rejected/duplicate rows. No silent guessing about dates, currencies, or conflicting records.

Working fictional demonstration, including input, source, output and summary: https://gist.github.com/ShivamBwaj/c02597fb1946bedfe4839246458f6182

That sample is self-created, not past client work. It was run locally: 8 input records = 4 accepted + 3 flagged + 1 duplicate, with text IDs preserved.

Send a redacted 5-10 row example, the column names, and what the output should look like. I will confirm a fixed scope before you commit; larger tasks are quoted separately. For an agreed small task, target delivery is within one day after the files and rules are confirmed, with one revision against those rules.

No account passwords or production access needed. Please remove private customer data from the initial sample. Payment can use a matching card checkout or another mutually available method. Comment or DM with your example and desired result.

Hi

I'm an experienced automation & data extraction specialist offering:

• Custom web scraping & automation scripts
• B2B lead generation (targeted by niche & location)
• Data cleaning, formatting & enrichment
• Contact info extraction (emails, phone numbers, owners, etc.)

Why work with me?

• Fast delivery & top-notch quality
• You receive the complete source code for the automation/scraping projects
• Any business category in the U.S & Canada, EU and other countries

Let me help you save time & grow your business.

(Portfolio available on request)

Hello! you might have built a nice, useful tool using your favorite AI, which works, but there are so many small issues here and there, which makes the app feel incomplete. Let me fix that for you! I have been a software engineer for 15+ years, with extensive experience of working with legacy code, or fixing someone else's code, besides completing projects for my clients. You can check my resume, here: https://mtarin.com

I took a Novel writing platform, which was AI generated, incomplete mess to production grade collaborative platform.

I worked with multiple Fintech prototypes, and gave them life.

Fixed multiple internal web app, that had head spinning issues here and there, driving the owner nuts.

You have problem? I can fix it for mere $15/h paid through GumRoad or Bank account

Let's talk!