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Saiyam Khambhaliya

@saiyamkhambhaliya

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I build analytics systems that improve conversion, retention, and marketing ROI.

United States

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At Legacy.com, I led the migration from Universal Analytics to GA4 across 10+ web properties, improving conversion-tracking accuracy by 30%. I build data layers, event-tracking architectures, and warehouse models that make customer behavior measurable.

I’ve used multi-touch attribution, Tableau, SQL, Python, BigQuery, and Looker Studio to reduce acquisition costs by 20%, improve conversion rates by 18%, and accelerate insight delivery by 70%. My work connects CRM, Google Ads, and GA4 data for real-time reporting on ROAS, CAC, LTV:CAC, funnels, and retention.

Earlier, I built responsive React components at VITG Corp, automated Power BI reporting at Index Analytics, and led QA testing at Hawkeye MedTech. I bring hands-on experience across analytics, experimentation, visualization, web development, and quality assurance.

Experience

Work history, roles, and key accomplishments

Data Analyst, Traffic Analytics

Legacy.com

Aug 2021 - Jan 2026 (4 years 5 months)

Orchestrated enterprise-wide migration from Universal Analytics to GA4 across 10+ web properties, improving conversion tracking accuracy by 30%. Maximized marketing ROI and decreased acquisition costs by 20% through user journey mapping and Multi-Touch Attribution models.

Google Analytics 4 Google Tag Manager BigQuery Looker Tableau Python SQL A B Testing ETL Data Warehouse Multi Touch Attribution Excel

UI/UX Developer Intern

VITG Corp

Feb 2021 - May 2021 (3 months)

Elevated user engagement and improved usability scores by 15% by engineering responsive web components using React.js, HTML, CSS3, and JavaScript. Drove a 10% increase in conversions by diagnosing user journey drop-offs via Hotjar and Google Analytics.

React HTML CSS JavaScript Hotjar Google Analytics AWS CI CD Amplitude Mixpanel

Data Intern

Index Analytics

May 2020 - Aug 2020 (3 months)

Accelerated insight delivery by 20% by designing automated Power BI dashboards using DAX and Power Query. Diminished manual administrative processes by 30% by developing a custom web application in Microsoft PowerApps.

Power BI DAX Power Query PowerApps Python SQL Exploratory Data Analysis

Software Quality Assurance Intern

Hawkeye MedTech

May 2020 - Aug 2020 (3 months)

Slashed post-release defects by 12% by formulating and executing comprehensive testing protocols. Boosted QA testing performance by 20% by managing over 200 manual test cases in an Agile/Scrum environment using JIRA.

Functional Testing Regression Testing Integration Testing Cross Browser Testing Agile Scrum Jira User Acceptance Testing