I will generate realistic multi table synthetic data for testing and demos
AI and Data Science Engineer
About this Gig
Need test, demo or ML data that looks real but contains zero real customer information?
I build realistic, multi-table synthetic datasets matched to YOUR schema: foreign keys that join, timestamps that make sense, totals that reconcile.
What you get:
- Data shaped to your rules: churn rate, revenue curve, seasonality, fraud %, missing values
- Any input: SQL schema, Prisma, dbt, a spreadsheet, or just describe your app
- Answer keys: labelled fraud, churn or anomalies to test models and dashboards
- A validation report proving every requirement was met
- CSV, Excel, Parquet, JSON, SQL inserts, or direct loading into PostgreSQL, MySQL or SQLite
Perfect for:
- Seeding dev and staging databases
- Sales demos and dashboards (Power BI, Tableau, Metabase)
- ML training and model testing
- Courses, portfolios and interview case studies
- Replacing production data you can't share
Domains: SaaS, ecommerce, fintech, healthcare, insurance, CRM, HR, logistics, edtech, gaming, travel, real estate and more.
Message me before ordering with your schema or idea. I'll confirm scope and send a free 20-row preview.
My Portfolio
FAQ
Is any real data used?
No. Every dataset is generated from scratch. There is no real person, customer or transaction in it, so it’s safe to share, demo publicly or hand to contractors.
Can you match my existing database schema?
Yes. Send a SQL dump, Prisma schema, dbt models, an ERD or even screenshots. Keys, types and constraints will match, so the data loads without errors.
Can I control the numbers and patterns?
Yes. Give me targets such as “8% monthly churn, a holiday sales spike, 2% fraudulent transactions,” and the data is generated to hit them. The validation report shows each target was met.
What formats can you deliver?
CSV, Excel, Parquet, JSON, DuckDB, or SQL insert scripts for PostgreSQL, MySQL and SQL Server. I can also load it directly into your PostgreSQL, MySQL or SQLite database, and provide files that import straight into Snowflake or BigQuery.
What is an “answer key”?
A label column that marks the planted truth, for example which transactions are fraud or which customers will churn. Use it to test ML models, dashboards or analysts against a known correct answer.
