Youla

Youla is an ad service that is part of the VK company, serviced by hundreds of servers and several data centers. Youla sets itself the task of creating the most convenient service for users, based on the reviews and analytics data received daily.

Monthly, Youla helps 33 million users (s of 2020) to sell and buy goods online, striving to make the interaction process as profitable and comfortable as possible for both parties.

As of 2021, ad placement is free, however, each category has a limit on the number of free publications per month.

What technologies does Youla use

Particular attention is paid to Youla recommendation system, which works on the basis of big data and machine learning, ranking ads based on the user's location and interests.

An important part of IT system is mobile applications for iOS and Android devices implemented in Objective-C + Swift and Java + Kotlin, respectively. The web version of Youla runs on the TypeScript/React/Redux stack, the CSS-in-JS library styled-components is used for styles.

Automated and manual testing is used to control the quality of the product. Autotests cover mobile development segments, frontend and backend API.

About company

Yula is an ad service that is part of VK, served by hundreds of servers and several data centers. Yula sets herself the task of creating the most convenient service for users, based on the daily feedback and analytics received.

Yula has a full stack of technologies under the hood. The basis of the backend and API is implemented in PHP and Go, its own search engine is used to manage and store data, with personal recommendations and geo-search it is written in C ++, which is assisted by ElasticSearch. Apache Kafka is configured as a message manager, data is stored in Hadoop and Clickhouse.

Particular attention is paid to Youla's recommender system, which works on the basis of big data and machine learning, ranking ads based on the user's location and interests.

An important part of our IT system is mobile applications for iOS and Android devices implemented in Objective-C + Swift and Java + Kotlin, respectively. Youla's web version runs on the TypeScript/React/Redux stack and uses the styled-components CSS-in-JS library for styling.

To control the quality of the product, automated and manual testing is used. Autotests cover segments of mobile development, front-end and back-end API.

Every month, Youla helps 33 million users to sell and buy goods online, trying to make the interaction process as profitable and comfortable as possible for both parties.