Mikhail Valov

- Designed and built key modules to meet business and customer needs, emphasizing scalability, security, and robust performance. -Backward Compatibility: Maintained seamless backward compatibility across releases, minimizing disruptions and enhancing user experience during updates. Steck: Ruby, Go, Postgres, Redis

This division was a startup. We rapidly tested hypotheses and launched features to get market feedback as quickly as possible, aiming to build the best crypto wallet on the market. Achievements: Over the year, we tested nine hypotheses and rolled out 9 fully developed features, each of which I contributed to directly. Steck: Ruby, Go, Postgres, Redis,

Achievements: - Architected and Developed Core Features: Led the design and development of high-impact modules based on customer and business requirements, ensuring scalability, security, and performance. - Backward Compatibility Assurance: Consistently ensured backward compatibility across releases, minimizing disruptions and enhancing the user experience during feature rollouts. Developed and scaled one of the market’s leading logistics platforms, focusing on reliable and high-performance solutions to meet evolving customer needs. Played a crucial role in designing and implementing architectural components for new features, ensuring consistent user experience, and supporting the company’s rapid growth. Emphasized data-driven development and continuous improvement in a fast-paced, experimental environment. Steck: Ruby(ROR, Dry), Postgress, Rabit, Redis Design: Microservices, Monolit

The platform helps sellers place products on marketplaces, process orders, and analyze sales. My role: Design and implementation of the analytics module. Together with the product owner, we found out what data can be collected from which platforms and what types of reports can be built for the client. Implementation of the order processing module. Integration with marketplace APIs, import and update of information about orders with a minimum timeout. Order status management.

Marketplace of autoparts. The project helps customer search parts for cars and provide a full according deal: delivery and safe deal. Steck: NodeJS/ NestJS / Postgres / RabbitMq My role: Design Api, Backend, management of frontend team. I make three microservices that communicate by RabbitMq - Import details from sellers' price lists - Website for users - Gathering information for details from several data provider Volume of data: 50 million records update every hour

Achievements: Worked a Solo on this project, handling both the backend and frontend. I added captivating new effects to keep users engaged, encouraging them to scroll seamlessly from post to post. I'm proud of this project and still have a lot of love for it, even after all this time. Flowey is a marketplace and social network. Guests of the site can find unique things, create collections, follow and chat with each other. Steck: Ruby 2.6.1 / Rails 5 / Postgres / Vue 2