Junior Data Analyst with hands-on experience in SQL, PostgreSQL, Excel, Tableau, and Power BI, with portfolio projects spanning healthcare, e-commerce, and large-scale job-market analysis. Skilled in data cleaning, KPI a…
Junior Data Analyst with hands-on experience in SQL, PostgreSQL, Excel, Tableau, and Power BI, with portfolio projects spanning healthcare, e-commerce, and large-scale job-market analysis. Skilled in data cleaning, KPI analysis, dashboard development, and translating data into actionable business insights. Currently pursuing an MBBS at Zhejiang University, combining healthcare knowledge with practical data analytics skills.
<p>Analyzed 9,216+ patient encounters to evaluate admissions, wait times, satisfaction, demographics, and operational trends.<br>
Queried and prepared healthcare data in PostgreSQL to calculate admission rates, patient volumes, waiting-time metrics, and data-quality indicators.<br>
Built Tableau dashboards to communicate hospital performance KPIs and trends for stakeholder review.<br>
Identified substantial missing-data patterns in admission dates and satisfaction responses, highlighting data-quality considerations for operational reporting.</p>
<p>Analyzed 80,000+ job postings to examine salary patterns, role demand, remote-work distribution, and differences across job sites.<br>
Developed an interactive Power BI dashboard to summarize market trends and support comparisons across roles and job sources.<br>
Translated a large job-posting dataset into clear KPIs and visual insights designed for practical decision-making.</p>
<p>Analyzed 2,500 e-commerce sessions to investigate conversion, add-to-cart behavior, engagement, traffic sources, devices, and order value.<br>
Used SQL to segment customer sessions and evaluate behavioral patterns associated with purchasing activity.<br>
Built Tableau visualizations to communicate funnel performance and identify potential conversion opportunities.<br>
Developed business-focused recommendations from customer behavior and conversion analysis.</p>
<p>Analyzed 9,216+ healthcare patient encounters using PostgreSQL and Tableau to evaluate admission rates, patient volumes, waiting times, satisfaction, demographics, and operational trends. Built SQL queries to calculate key healthcare KPIs and identify data-quality issues, including substantial missing admission-date and satisfaction data. Developed Tableau dashboards to communicate findings and provide actionable insights into patient flow and hospital operations.</p>
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