Hi, I'm Toan Nguyen
Analytics Engineer · Data Analyst
I build reliable, cost-effective data platforms that turn raw business data into trusted analytics.
SQL · Python · dbt · Airflow · BigQuery · Power BI · CI/CD
I turn fragmented business data into clean pipelines, governed data models, and dashboards that leaders actually use — across E-commerce, Logistics, and Marketing Analytics.
The Data Core
Transforming messy, raw business data into structured, optimized data models with SQL, Python, and dbt.
The Engineering Edge
Applying Backend and DevOps practices (Docker, CI/CD pipelines) to automate and secure end-to-end data workflows.
The End-to-End Extra
I can also build the app around the data — frontend, backend, and DevOps — delivering from data-entry screen to executive dashboard.
Data & Modeling
- SQL (MySQL / Postgres / BigQuery)
- dbt models & tests
- Star schema / Data Marts
- Query optimization
BI & Dashboards
- Power BI
- Tableau
- Looker Studio
- Metabase / Superset
Pipelines & DevOps
- Python (Pandas, NumPy)
- Apache Airflow / dlt
- Docker
- GitHub Actions CI/CD
Apps & Automation
- AppSheet / Apps Script
- Next.js / React
- FastAPI (basic)
- Applied ML (scikit-learn)
Work Experience
2024 - Present
Freelance Data & App Consultant
Self-employed | Remote
Built an end-to-end business management platform for a marketing agency: redesigned fragmented Google Sheets into a relational model, migrated legacy data to BigQuery, and shipped a data-entry app (AppSheet + Apps Script) with fully automated reports at near-zero infrastructure cost. Delivered freelance analytics projects for small businesses: sales & inventory dashboards, reporting automation, and ad-hoc analysis.
4 months
Data Analyst
Atlas | US E-commerce
Built a correlation model linking Google Ads spend to marketplace sales for a US product line, informing ad-budget decisions. Maintained business dashboards on Tableau and Power BI.
1 year
Data Analyst, Operations & Supply Chain
Yes4All | Cross-border E-commerce
Ran ETL with Python/SQL alongside the Data Engineering team and kept pipelines reliable with Apache Airflow. Administered databases hands-on and built real-time dashboards (Power BI, Looker Studio, Superset) for inventory and supply chain. Built automated alerting bots (Telegram, Google Chat) and a pricing simulation tool used by executives.
1 year
Data Analyst & Business Analyst
FP Logistics | Logistics ERP
Designed department-level Data Marts and reporting on Metabase/Looker Studio. Wrote BRD/SRS documents for new Odoo ERP modules, designed test data, and trained end users.
1 year
Data Analyst
Mio App | Grocery E-commerce
Owned the BI system for the executive board, Sales, and Finance. Built financial simulation tools (agent wages, driver pay, promo budgets) and customer segmentation with K-Means; helped design fraud-prevention rules.
2015 - 2021
Content & Activation Event Specialist
OPPO Vietnam | Marketing
Measured sponsorship ROI of major TV shows and music campaigns using media, digital, and sales metrics. Best Employee of the Year 2019 for applying data analytics to marketing planning.
Education & Training
Degree
Bachelor's Degree
University of Economics Ho Chi Minh City (UEH)
Formal business education — the foundation for translating data work into business impact.
4-month program
Machine Learning Engineer
CoderSchool | Top 6 Researcher, Cohort 30
Data crawling with SQL/Python, ML foundations, EDA, and hands-on model training & tuning including basic Computer Vision.
Continuous
Additional Training
Professional courses
Data Analyst, Master Data Analyst, Frontend, Backend, DevOps, and AI Agent for Data Analysts.
Planned
Master of AI Engineering
University of Science (VNU-HCM)
Planned enrollment to deepen AI engineering foundations.
Data Platform
From Google Sheets Chaos to a Governed Data Platform
Freelance Data & App Consultant · 2024 - Present
Redesigned a marketing agency's fragmented spreadsheet operations into a normalized data platform with an automated data-entry app — at near-zero infrastructure cost.
Data Analyst
Financial Simulation & Customer Segmentation for a Grocery App
Data Analyst — Mio App · ~1 year
Owned the BI system for the executive board and built financial simulation and customer-segmentation tools that shaped payout fairness and marketing targeting.
Operations
Pipeline Reliability & Pricing Simulation for Cross-Border E-commerce
Data Analyst, Operations & Supply Chain — Yes4All · ~1 year
Partnered with Data Engineering to keep supply-chain data pipelines reliable, then built a pricing simulation tool that informed executive sell-in pricing decisions.
Business Analysis
Bridging Business Requirements to ERP Features
Data Analyst & Business Analyst — FP Logistics · ~1 year
Translated executive direction into BRD/SRS documents and department-specific data marts, bridging the gap between business needs and Odoo ERP development.
Let's build scalable data solutions
Looking for a robust data pipeline, cost-effective infrastructure, or freelance collaboration? Drop me a message and let's talk data.
- [email protected]
- Ho Chi Minh City, Vietnam
- Based in GMT+7 — regular overlap with EU mornings, US afternoons/evenings, and AU business hours.
- Available for Projects