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English
$
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I will normalize your data into an audit ready 3nf sqlite database
Data Engineer, SQL and Relational Database Normalization
I specialize in relational database design, legacy data normalization, and financial ledger reconciliation across healthcare, fintech, and SaaS domains.
I transform flat, unstructured spreadsheets an...
About this Gig
Most spreadsheets suffer from silent defects: duplicate customer rows, circular foreign keys, floating-point rounding errors, and unhandled timezone offsets.
I engineer clean, audit-compliant 3NF relational SQLite databases from your flat, messy CSV or Excel files.
What You Receive:
Normalized 3NF Schema: Deconstructed into structured relational tables enforcing primary & foreign keys (PRAGMA foreign_keys = ON).
Exact Financial Precision: Currencies stored in integer minor units (cents) to eliminate binary float drift.
Clean File Exports: High-performance .sqlite file, master SQL creation script, and relational CSV dumps (Unix LF line endings).
Automated Verification Battery: Python test harness certifying zero data loss and $0.00 trial balance parity.
Privacy & Confidentiality:
Your data is handled under strict zero-trust principles. All processing runs locally with offline tokenization to guarantee client PII never leaves your workstation.
Industry Experience:
Fintech payment ledgers | Healthcare clinical records | B2B SaaS subscription billing
Please message me with your data specifications before ordering so we can confirm your requirements!
My Portfolio
FAQ
Q: Can you handle multi-currency or financial ledgers?
A: Yes. All balances are modeled in integer minor units (cents) with double-entry constraints to guarantee exact-penny reconciliation ($0.00 net drift).
Q: Is my data kept confidential?
A: 100%. All work is performed locally under zero-trust standards, and raw PII can be tokenized offline prior to engineering.
Q: How do we communicate during the project?
All project communications are conducted strictly in writing through Fiverr messaging. This maintains an immutable audit trail of all requirements, schema adjustments, and deliverable handoffs.
Q: Do you use AI tools?
We utilize AI-assisted engineering pipelines operating exclusively on locally tokenized, synthetic data. Your real identities and confidential business records remain sealed inside an encrypted vault and are never exposed to any AI system.
Q: Can we sign an NDA?
All work completed through Fiverr is automatically governed by Fiverr's Terms of Service, which includes legally binding confidentiality protections for your business data and proprietary information. For standard freelance engagements, I operate fully within that existing framework.
