Sergey Levchenko

Fullstack PHP Developer at Arbostar

Developed and maintained CRM software for the tree-care industry. Implemented new features, optimized backend logic, and ensured scalability.

Fullstack PHP Developer at RVA FinTech Solutions

Built and enhanced fintech products, adding features, integrating services, and focusing on code quality and releases.

Fullstack PHP Developer at Unipost

Created CRM fulfillment service from scratch as a fullstack developer, handling warehouse management and package delivery integrations with services like Nova Poshta. Transitioned to microservices architecture, optimized MySQL queries, and ensured reliable inter-service communication.

Fullstack PHP Developer at Investors Observer

Implemented features and maintained Symfony/Angular applications using microservices. Focused on backend scalability, database optimization (Postgres, MongoDB), search functionality, and containerization.

Fullstack PHP Developer at Higher Media

Developed CRM and SaaS applications for landing pages and educational sites. Handled backend architecture, integrations, and performance optimization.

Fullstack PHP Developer at W3Ukraine

Built PHP-based websites, capturing requirements, ensuring compliance, and collaborating with teams.

Fullstack Developer at Unipost

Created CRM fulfillment service from scratch as a fullstack developer, handling warehouse management and package delivery integrations with services like Nova Poshta. Transitioned to microservices architecture, optimized MySQL queries, and ensured reliable inter-service communication.

Backend/Fullstack Developer at Investors Observer

Implemented features and maintained Symfony/Angular applications using microservices. Focused on backend scalability, database optimization (Postgres, MongoDB), search functionality, and containerization.

Software Engineer at Higher Media

Developed CRM and SaaS applications for landing pages and educational sites. Handled backend architecture, integrations, and performance optimization.