STAS DZIUBENKO

• Developed and maintained high-load backend applications in PHP and Go(including a CRM/ERP system for850 shops across27 countries), processing over70,000 orders daily with99.9% system uptime
• Optimized the performance of MySQL, PostgreSQL, and other databases, reducing query execution times by significant percentages
• Designed architectures for monolith, scalable microservices, and various libraries tailored to handle high workloads
• Conducted refactoring, optimization, and code reviews, significantly improving system performance by multiple factors
• Expanded front-end functionality with jQuery and React, enhancing the user interface and integration with databases

Result: Successfully increase AutoDoc's critical systems, ensuring their stability and readiness for high-load operations

• Developed and enhanced the CRM/ERP platform for CPI, managing hundreds of thousands of orders, thousands of products, and supporting a six-figure revenue stream
• Developed detailed debit and credit reports segmented by time for each webmaster, providing actionable insights and improving financial tracking accuracy
• Optimized system performance by redesigning workflows and improving code quality with Laravel, and implementing RabbitMQ-based queue processing, significantly reducing processing times and increasing reliability
• Utilized MongoDB and other databases to improve data management and accelerate reporting for high-volume transactions
• Built scalable monolithic and microservice architectures to handle growing traffic and operational complexity
• Developed secure and high-performance REST/Saas APIs and web services, ensuring smooth data flow and reliable system integration

Result: Successfully implemented a scalable, high-performance system that increased operational efficiency and supported CPI's growth and revenue objectives

• Engineered and enhanced CRM systems using Yii2, improving functionality and performance for client-facingo operations.
• Designed and implemented tools and features to automate business processes, streamlining workflows and reducing manual efforts.
• Made architectural decisions for monolithic development, ensuring the system’s scalability and maintainability.

Result: Delivered optimized CRM solutions that enhanced client satisfaction and supported efficient business operations.

• Developed tools and features to enhance client-facing functionality and automate processes.
• Built and customized websites using WordPress and OpenCart, tailoring CMS solutions to meet clientn eeds.
• Developed custom CMS solutions, improving content management efficiency and scalability for clients.

Result: Delivered tailored websites and CMS solutions that optimized user experience and streamlined content

management.