Data Analyst · by Nguyen Huu Thanh

Good data
beats good
guesses.

I'm a Software Engineer moving into Data Analytics. I build the SQL, ETL pipelines and KPI reports that keep an e-commerce business running on real numbers.

Get in touch Download CV
Portrait of Nguyen Huu Thanh
75%Faster SQL reports
47,000+eBay listings in ERP
1M+Product rows queried
~50Staff using my tools

Reports are only as good as the pipeline under them.

Before I wrote a single dashboard, I spent a year building the systems that feed them: audit triggers, ETL jobs, retry logic and indexes for a US retailer with tens of thousands of listings.

That's what I bring to analytics. I don't just read the numbers. I know where they come from, how they break, and how to make a 20-second query run in 5.

Experience

Retoolers — Software Engineer

Automation & Reporting · Mar 2025 – Present. Two client projects, both built around SQL and operational data.

PO Pricing Time Tracking · pricer KPIs
ThirdWave Discounts

E-commerce ERP

Main developer · US retailer, ~50 staff
Aug 2025 – Aug 2026
  • Built PostgreSQL audit triggers that roll every 100 audit records into a checkpoint, keeping logs small on high-volume sales and product tables.
  • Built ETL workflows that pull eBay XML, clean it with JavaScript and load it into PostgreSQL, with retries and concurrency limits.
  • Rewrote CTEs/JOINs and tuned indexes across 1M+ product and 200K+ sales rows: 20s → 5s (−75%). Precomputed KPI aggregates with triggers and cron jobs.
SupabasePostgreSQLSQLJavaScriptRetool WorkflowseBay API
Claim Processing · OCR → OpenAI extraction
HBA Rebates

AI claim processing

Rebate claims, extracted by AI
Sep 2026 – Present
  • AI-powered claim extraction from documents with Azure Document Intelligence and the OpenAI API.
  • SQL Server stored procedures and transactions so claim approvals stay consistent end to end.
SQL ServerReactTypeScriptAzure Doc IntelligenceOpenAI API
Academic projects

Things I built at university

All on GitHub →
ML · 9.0/10

Stock Price Prediction

Collected and cleaned financial data in Python, then trained XGBoost and LSTM models and compared how well each predicts. Experiments documented in Jupyter and a written report.

GitHub ↗ Report ↗
CRM · 2023

CRM Data Integration & Workflow Automation

Team leader. Mapped the business process into a CRM lifecycle (lead → opportunity → customer → care), built Node.js webhooks for lead ingestion, Lark automations for follow-ups, and sales pipeline dashboards.

GitHub ↗ Lark ↗
Toolbox

What I work with

Strongest in SQL and PostgreSQL. Comfortable from the database all the way up to the dashboard.

Languages

Querying, scripting, and front-ends for internal tools.

SQLPythonJavaScriptTypeScriptReact

Databases

Schema, triggers, indexes, stored procedures.

PostgreSQLSQL ServerSupabaseS3 StorageRealtime

Data & automation

Reporting tools and the workflows that feed them.

JupyterRetoolLark BaseMakeZapier
Nguyen Huu Thanh
About

Hi, I'm Thanh.

I studied Information Systems (E-commerce) at the University of Information Technology, VNU-HCM, and have been shipping real systems for real businesses since early 2025.

I like the part of the job where a vague business question becomes a clean query and a number people can trust.

UIT · VNU-HCMB.Sc. Information Systems, 2021–2025
3.0 / 4.0GPA
770 + 260TOEIC L&R · S&W
Contact

Need someone who can find the answer in your data?

I'm open to Data Analyst roles in Ho Chi Minh City. The fastest way to reach me is email.

mikeythanh.nh@gmail.com LinkedIn GitHub