Danila Koshevoi Email & Phone Number

• Avito is the largest classified marketplace globally, serving over 61 million MAU across categories like general goods, jobs, real estate, cars, and services. As a key member of the Buyer Experience unit, I contributed.
• Designed and launched the "Fancy Items" block on Avito's main page, driving a 311% uplift in high-interest item views by integrating this new feature within the homepage layout.
• Developed the "Like New" recommendation block within product cards, achieving a 273% increase in views for similar but new items and enhancing product discovery through advanced recommendation algorithms.
• Implemented "Seller Type" inline filters, enabling users to filter products by private sellers or businesses, refining search accuracy and improving decision-making in the buyer experience.

• Participated in development of critical microservices within the assortment matrix team. I was responsible for development and implementation of such complex systems as asynchronous data import module and assortment.
• Developed and deployed an integrated asynchronous data processing module adopted by 20 microservices within department, resulting in a 39% acceleration of data import processing time across the business unit.
• Improved query performance of critical microservice by applying GIN indexes to BSON data, resulting in a 40% reduction in query execution times.
• Developed and maintained assortment matrix APIs for broker integration.
• Reduced application regression by 60% by covering core functionality with e2e tests.

• Developed and implemented the complex external perimeter vulnerability detection platform written in Golang. I was responsible for the most essential part of external perimeter vulnerability detection platform - CVE.
• Designed and developed CVE data storage and external network traffic analysis containerized services in Golang meeting the requirements of high availability (99.99%), reliability and fault tolerance.
• Enhanced overall system performance by 23% and reduced API response time by 34% within a master microservice by implementing concurrent network I/O execution model, which increased transaction throughput by 20%.
• Identified and fixed critical bugs by increasing test coverage from 40% to over 70% through modular and integration testing.

Master'S Degree, Computer Science, 7.6/10

Bachelor'S Degree, International Business, 7.9 / 10

International Studies Program, Business Administration, Management And Operations