Andrey Yurov

Developed backend solutions for multiple projects with focus on Ruby on Rails applications: - Decision Simulator - Ruby on Rails API service for decision analysis with probability calculations, risk assessment, and forecasting. Built complete architecture with RSpec testing and Docker deployment. - Novel/Book Reading Platform - Full-stack web application with payment system, user analytics, and administrative dashboard.

Contributed to the development of a corporate SaaS platform for e-commerce: - Built a financial reporting module covering discounts, logistics, returns, commissions, and VAT - Integrated marketplace API for syncing orders, products, inventory, and sales in real time - Optimized calculation logic with locking, recalculation, and post-processing mechanisms - Refactored database structure: migrations, triggers, indexing, query performance tuning - Improved the admin interface with filters, pagination, and dynamic column display - Collaborated in a Kanban team, participated in code reviews, used Git, Docker, Jira, and Jenkins

Development of parser scripts for automated data collection from online stores. Web page parsing using XPATH/CSS selectors, JSON/XML API processing, HTTP requests handling via cURL and Ruby nokogiri gem. Working with MySQL product database. Remote server management via SSH protocol. JavaScript code debugging. Results: Developed 18 parser scripts for 12 online stores, automated daily collection of product data and reviews. Stack: Ruby, Git, MySQL, Linux, XPATH, CSS Selectors, JSON, XML, cURL, Postman, HTTP Requests, nokogiri, HTML, JavaScript, JIRA, SSH.

Backend task execution within weekly JIRA sprints. Writing tests for completed tasks, code analysis and debugging within CI/CD processes. Participation in daily team meetings E-learning project (Sophia): - Developed search API using Solr for the support page - Extended functionality and performed legacy code refactoring - Conducted database query performance optimization Corporate portal (Intranet): - Fixed bugs in the personnel management system - Performed Ruby upgrade to 2.6.0 and critical dependencies update Sophia Dashboard: - Conducted SQL query optimization and database refactoring - Performed system cleanup from outdated components and unused code - Improved API client interaction architecture Stack: E-learning: Ruby on Rails 7.0.3, Ruby 3.1.2, Vue.js, Solr, AWS, RabbitMQ, PostgreSQL Intranet: Ruby on Rails 5.x, Ruby 2.6.0, Google API, Omniauth, Puma General: Git, Docker, Jenkins, Bitbucket, Linux, RSpec, Nginx, JIRA

1) Development and maintenance of functionality in healthcare information systems. 2) Upload and download of data, integration via web services, centralized work with RabbitMQ. 3) Work with HTTP services, configuration of scheduled tasks, participation in the analysis of business algorithms. Stack: 1C, RabbitMQ, SOAP, HTTP services.

IT infrastructure support, 1C and SAP maintenance, WordPress website administration, creating VBA macros for internal process automation.

Full-stack development of enterprise websites and CMS. Development of enterprise portal modules, integration with social networks, refinement of 1C configuration.