vuhiza

- Refactored and optimized microservices for a payment gateway, improving code maintainability and reducing technical debt across critical transaction flows. - Designed and implemented RabbitMQ-based messaging workflows and Celery task pipelines to handle asynchronous payment processing reliably at scale. - Improved code performance to handle increased transaction loads, ensuring consistent service availability and minimizing downtime during peak periods. - Built and maintained PostgreSQL schemas and queries for financial reporting, optimizing slow queries and ensuring data integrity across services. - Developed a proof-of-concept for an exchange rate lookup using Binance P2P data, demonstrating feasibility of real-time rate aggregation.

- Developed backend applications using FastAPI and Tornado for analytics projects, integrating and optimizing analysis queries within the back-office system. - Created and optimized data pipelines for processing trading strategies using Airflow. - Implemented API endpoints and collaborated with clients to ensure project requirements were met.

- Developed and maintained web scrapers and crawlers for product websites (e.g., Walmart, Costco), enabling clients to adjust pricing strategies based on competitor data. - Created internal tools to bypass security measures, ensuring reliable and continuous data collection. - Developed a proof-of-concept for bypassing Google reCAPTCHA v2 using voice recognition integrated with wit.ai.