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I built data-quality and reconciliation checks to catch issues before they affected reporting, downstream processes, or business decisions.
The work included validating required fields, standardizing formats, identifying invalid or duplicate values, reconciling source and reporting totals, and creating clear exception outputs for follow-up. The validation query shown is a sanitized portfolio example and does not contain client data or proprietary quality rules.
The network for creativity
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Messy Data In. Clearer Decisions Out. 📊
Over the past year, I've noticed most businesses don't struggle because they lack data — they struggle because that data never turns into a decision.
That's the gap I work in:
→ Cleaning and analyze data with Python & R
→ Turning findings into investor-ready pitch decks
→ Polishing the final write-up so nothing gets lost in translation
If your team has data sitting in spreadsheets with no story attached, or a pitch deck that needs to actually land — that's exactly where I can help.
Open to projects. Let's talk 👇
BEFORE: Client had messy Excel inventory with 500 rows, duplicates (A12 / a12), blanks, wrong prices like "$ 2.5" and "N/A", and different warehouse names (KER / ker / Kericho).
AFTER: I did:
Removed 12 duplicate SKUs
Standardized item names to Title Case
Fixed QTY and Prices to 2 decimals
Unified Warehouse to Kericho
Made sheet ready for pivot dashboard
Result: Clean, ready-to-use inventory in 2 days using Excel.
Tools: Excel, Remove Duplicates, Text to Columns, TRIM, PROPER
3 mistakes that will eventually make this board useless. 📉
I've reviewed several client dashboards over the years, and the same 3 problems show up over and over:
1️⃣ Too many charts, no clear takeaway — if I can't tell what to do after looking at it, it's decoration, not a dashboard.
2️⃣ Colors with no consistent meaning — red means "unacceptable" on one chart and "category 3" on the next. Pick a system and stick with it.
3️⃣ No comparison point — a number alone means nothing. "Revenue: $12,480" tells you nothing. "Revenue: $12,480 (+18% vs last month)" tells you everything.
Fix these three, and your data stops being numbers on a page — it starts being something people actually use to decide.
What's the most common dashboard mistake you've seen? 👇
