About Me

I didn’t start my career in data - I began in customer support, continued in software development, where I learned how important it is to connect technical solutions with real people’s needs. Over time, I found myself drawn to data, because it tells the story behind every decision, every customer, and every outcome.

One of my recent projects was with an automotive client. I built a custom app that brought together parts and expense tracking, saving the team hours of manual work. I also took on financial reporting, streamlined the way we sourced auto parts, and launched marketing campaigns that helped cars sell faster. Seeing those changes make a measurable difference, like cutting costs and speeding up sales, showed me the impact data can have when it’s put into action.

Today, I use tools like SQL, Python, Tableau, and Excel to bring structure to messy datasets and uncover insights that drive real results. This portfolio is a collection of the projects I’ve enjoyed most - each one a step in my journey of combining technical skills, problem-solving, and storytelling with data.

I’m excited about opportunities where I can bridge technical data work with business strategy, helping organizations turn raw information into meaningful growth.

Anna Kostyrka
Data Analyst

Experience

Apr 2023 - Present
Data Analyst - Crumina

I work with an automotive client to optimize operations, sales strategies, and inventory management through data-driven insights. I collect and analyze market data to understand demand and support smarter business decisions. As part of this work, I developed a unified cost-calculating app using React, Python, and SQL, which streamlined calculations of the potential car expenses and improved operational efficiency by 30%. I also managed financial reporting, optimized parts procurement, and ran marketing campaigns that accelerated car sales by 25%.

December 2021 - February 2023
Front-End Developer - SoftServe

At SoftServe, I worked on several projects for the leading companies in their industries. I played a key role in designing and developing user-friendly components that improved software functionality and user experience. Throughout the projects, I collaborated with the teams to address performance issues, enhance the softwares' reliability, and meet deadlines.

August 2021 - November 2021
Front-End Developer - Upwork

I worked on a project for a client that involved transforming Photoshop designs into responsive and visually engaging HTML template. I developed modular templates that were adaptable, easy to update and reuse, giving the client flexibility for future customizations. The template became a hit, contributing to a 20% increase in revenue for the client through multiple sales. https://themeforest.net/item/cryptoki-html-template-for-nft-and-digital-marketplace/34741893

January 2013 - January 2021
Customer Support Representative - DFDevelopment

I worked for a company developing reusable WordPress templates for customers' websites. My main role was to improve customer support service, customer retention, and satisfaction. I analyzed Google Analytics traffic to track sales funnel, user behavior, and customer attribution, driving a 30% increase in new customers. Also, I analyzed customer support data to identify common issues, reducing resolution time by 30% through improved documentation and automated responses. Additonally, I maintained frontend UI components, ensuring data consistency and accessibility across multiple platforms, improving customer interactions by 20%.

Portfolio

Annual Sales Analysis of digital products
Tech stack: Python, SQL, SQLite, Tableau
Courierly Performance Insights
Tech stack: Excel, SQL, SQLite, Tableau
Sample SuperStore Performance Visualization
Tech stack: Tableau
Comparative Analysis of Hospital Admission Data
Tech stack: Python, Pandas, Matplotlib
My Github projects
Tech stack: Python, Pandas, Matplotlib, Javascript, React, Angular

Get In Touch

If you're interested in learning more or discussing potential opportunities, I’d love to connect! Feel free to reach out via the contact information on this page or connect with me on LinkedIn.
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Anna Kostyrka
Data Analyst