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 to enhancing user engagement and optimizing the buyer journey across the platform.Buyer Experience Unit• 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 matrix microservice.Assortment Matrix Team• 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 database enrichment and parallel network scanning.External Perimeter Vulnerability Detection Team• 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