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Open to full-time data analyst and business analyst roles

Thang Vay

Most of my work comes down to one thing: making sure the numbers a business acts on are right. That means auditing them, automating the reporting around them, and going into the pipeline when they turn out not to be.

tvay2221@gmail.comResumeLinkedInGitHub
Thang Vay, headshot
Degree
B.S. Computer Science, 3.7 GPA
University
Saint Louis University
Focus
Analytics, BI, Data Systems
Location
St. Louis, MO

01Results

1
$70M
Pennymac | 2026
Portfolio Risk Mitigated
178 systemic anomalies isolated in a Snowflake audit
2
99.4%
Pennymac | 2026
Pipeline Integrity Rate
Across 4,500 audited transactional records
3
240+ hrs
Hussmann | 2025
Manual Hours Saved
20 hours a month returned by Alteryx automation
4
25,000+
Hussmann | 2025
Data Mismatches Fixed
94% cross-system match rate, custom Python utility
5
26%
Freelance | 2025
Client Revenue Lift
Short-term rental hosts, from pricing and demand analysis

02Selected work

Touchline Analytics club ratings dashboard

01

Touchline Analytics

30,478 shots across 1,170 matches, adjusted for opponent

Premier League club and player ratings built on opponent-adjusted expected goals, with per-fixture score projections.

  • Next.js
  • React
  • TypeScript
  • Tailwind CSS
  • Vercel
Case studyLive site
Congressional trade tracker dashboard showing trade logs and volume

02

Congressional Trade Tracker

Scattered disclosure filings, normalized into one searchable log

Dashboard tracking stock trades disclosed by members of Congress, with policy-to-portfolio analysis.

  • Next.js
  • React
  • TypeScript
  • Vercel
Case studyLive siteRepo
Qubicle Studio drag-and-drop page builder interface

03

Qubicle Studio

Persisted drag-and-drop layouts, live at qubicle.studio

Drag-and-drop page builder for bento-grid homepages, with media, products, and social links.

  • Next.js
  • React
  • Tailwind CSS
  • Supabase
  • Framer Motion
Case studyLive siteMy page
Travelume destination guide homepage

04

Travelume

Builds a full destination guide from a single city input

Travel planning app that turns one city name into a working itinerary: local spots, food, and what is worth the time.

  • Next.js
  • React
  • Tailwind CSS
  • Vercel
  • REST APIs
Case studyLive siteRepo
All projects

03Experience

Pennymac

Business Analyst

  • Cut $70M of portfolio and financial risk exposure by turning stakeholder reporting requirements into Snowflake SQL that isolated 178 systemic data anomalies.
  • Raised defect identification efficiency 35% by converting data governance indicators into parameterized Snowflake validation queries, with documented procedures for the automated checks.
  • Held a 99.4% pipeline integrity rate across 4,500+ transactional records through systematic reconciliation and root cause analysis of upstream load failures.
  • Standardized data definitions across cross-functional teams and documented known limitations, ending recurring discrepancies between technical and business reporting.

Freelance

Data & Analytics Consultant

  • Raised annualized client revenue 26% and seasonal occupancy 14% against market benchmarks by analyzing pricing and demand trends, then taking the recommendations to owners directly.
  • Cut off-peak vacancy exposure 32% across a multi-property portfolio by automating data integration and building recurring trend and yield analyses.
  • Built the Python ETL pipelines that land raw files in S3 and load modeled tables into a warehouse, normalizing competitor and booking data into an analysis-ready schema.
  • Wrote Python data quality checks that catch schema drift and missing records before they reach downstream reporting.

Hussmann

Data Analyst

  • Resolved 25,000+ legacy ERP discrepancies and reached a 94% cross-system matching rate with a Python string-matching utility enforcing Master Data Management rules.
  • Cut processing latency 35% and removed 20 hours of manual data handling a month by refactoring legacy reporting into automated Alteryx ELT workflows.
  • Built the Power BI dashboards giving operations and finance real-time visibility into supply chain metrics, cost trends, and data health.
  • Ran the reporting environments end to end: access roles, security permissions, and refresh schedules across dev and production.

Reinsurance Group of America

Data Engineering Intern

  • Migrated 500+ daily electronic records across enterprise systems with an object-oriented Python ETL pipeline, with zero critical integrity incidents.
  • Cut manual data-cleaning effort 15% by adding runtime schema validation and modernizing ingestion logic alongside the backend engineering teams.