Otabek Rizakulov

Architected a microservices-based infrastructure for a cloud-native SaaS platform, boosting system scalability by 300% and enabling seamless user base growth from 10,000 to over 50,000 within a year. Developed secure, high-performance fintech applications leveraging blockchain technology, enabling over $500M in digital asset transactions and strengthening the company’s competitive market position. Built an intelligent customer engagement system using Node.js, Express.js, and React, automating follow-ups and personalized communication which drove a 15% increase in customer retention. Designed and implemented a real-time analytics dashboard using JavaScript and Metabase that visualized data from over 5 million users, increasing customer engagement by 25%.

Spearheaded integration of merchant systems at a fintech company serving 11+ million users and processing over 2 million financial transactions daily, improving partner onboarding speed and reliability. Designed and developed a high-impact ticket service feature for the Payme payment app, leading to over 500,000 new user installations and registrations within three months of launch. Led a large-scale infrastructure modernization project refactoring core services and migrating from traditional servers to Kubernetes, increasing operational efficiency and system reliability by 30%.

Collaborated with cross-functional teams including product, operations, and design to ensure timely delivery and seamless integration of logistics services into the Sello marketplace, accelerating go-to-market readiness. Architected and implemented scalable microservices using the Nest.js framework, optimizing logistics operations and improving overall system performance by 20%, particularly in shipment tracking and delivery scheduling. Led code reviews and enforced engineering best practices enhancing scalability and security of the Sello payment and logistics modules, resulting in an 11% improvement in system reliability and reduced service downtime. Integrated real-time customer feedback loops into the delivery platform enabling dynamic route optimization and faster issue resolution, increasing operational efficiency by 15%. Developed AI-powered background check services to automate courier and merchant verification, increasing screening accuracy by 20% and ensuring more reliable on