Oleh Sekirkin

Oleh Sekirkin

Business Professional & Data Enthusiast

Boston, Massachusetts, United States

Projects

EcomVitals: Performance Meets Profit in Ecommerce Optimization

EcomVitals: Performance Meets Profit in Ecommerce Optimization

Built a full-stack web application that audits ecommerce websites using Lighthouse and Puppeteer, translating Core Web Vitals into actionable, business-impactful insights with tailored recommendations and conversion revenue projections.

React TypeScript Node.js Lighthouse Puppeteer Tailwind CSS
Unlocking Insights in Healthcare

Unlocking Insights in Healthcare

Developed a predictive analytics system that helped assess patient risk with 97% accuracy, which in turn highlighted over $20,000 in potential cost savings using advanced clustering and machine learning. I also took complex patient data and turned it into a clear, interactive dashboard that made it easier for healthcare teams to track critical metrics in real time.

SQL Python Data Analysis Data Science
Motor Vehicle Collisions

Motor Vehicle Collisions

Using geospatial analysis and statistical testing, I pinpointed high-risk crash zones and patterns in NYC’s traffic data. I found strong links between when and where accidents happened and how severe they were (with a significance level of p < 0.001). These insights helped inform smarter emergency response strategies and targeted safety improvements.

Python Folium Statistical Testing Tools Data Analysis
Power BI Showroom

Power BI Showroom

Storytelling through Power BI dashboards. Transformed raw data into interactive visualizations across various industries.

Power BI
Competitive Intelligence Analysis for Kimball International

Competitive Intelligence Analysis for Kimball International

Drove data-backed market strategy for Kimball International by analyzing competitor pricing, features, and customer behavior across digital channels. Identified untapped $500-700 mid-tier market opportunity and revealed 47% surge in digital-first purchases, enabling strategic positioning in the growing ergonomic office chair segment.

Python Microsoft Excel Web Scraping Competitive Intelligence Analysis
Deep Marketing Data Analysis

Deep Marketing Data Analysis

Optimized bank marketing campaign ROI by uncovering that 78% of clients with >375-second interactions opened term deposits, versus 32% below threshold. Built ML models reaching 85% accuracy in predicting client conversion, enabling targeted outreach that increased successful deposits.

Python Marketing Data Data Analysis
ETL Pipeline: front & backend

ETL Pipeline: front & backend

Built end-to-end automated ETL pipeline integrating Alpha Vantage API with BigQuery for real-time stock analysis. Orchestrated daily data workflows using Apache Airflow and created dynamic Power BI dashboards featuring 12+ key trading metrics, enabling instant market insights.

SQL Python Google BigQuery Apache Airflow
Topological Data Analysis

Topological Data Analysis

Coded application of Topological Data Analysis (TDA) for detecting market crash patterns in S&P500 data. Developed Python algorithm using persistent homology and Wasserstein distance to identify structural similarities between historical market periods.

Python Data Analysis
This Website

This Website

Built this sleek portfolio from scratch using Astro, TypeScript, CSS and HTML. Clean design, fast load times, and fully open source - grab it from my GitHub if you want your own minimalist showcase!

Astro TypeScript CSS HTML