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Chats, tasks, daily updates, and files - organized by projects in a patented, clutter-free interface. Sergey designed and developed a RESTful API service for a new company product. He built core infrastructure components including caching, logging, async processing, authorization, storage integration, email services, and role/permission systems. He also designed database schemas and API architecture, maintained clean and scalable code, coordinated backend team efforts, and ensured up-to-date API documentation using Swagger.
Read moreA company focused on internal tools and proprietary products. Sergey worked on designing and developing backend services using PHP (Symfony, Yii). He handled system architecture, database design (MySQL, PostgreSQL), and integrations using RabbitMQ, Redis, and Sphinx to ensure performance and scalability.
Read moreA CRM-focused development environment. Sergey implemented and customized CRM systems (Bitrix, AmoCRM), developed and extended components and templates, and integrated third-party services based on client requirements.
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