• Implemented Cloudflare streaming for educational videos, resulting in a 50% increase in application usage and increased user satisfaction.• Proven track record of reducing response times by 60%, handling +300k online users in the application simultaneously• Developed a video encoder with FFmpeg for optimizing video size that resulted in a 90% reduction in maintenance costs and a 50% decrease in video storage volume.(Go2train.co)• Optimized web service response times by integrating a caching system, significantly reducing response times from 5 seconds to 537ms seconds.• Established connections with international payment gateways (PayPal, Stripe, Zarinpal) and enabled in-app purchases for the App Store, Google Play, and Cafe Bazaar.

• Collaborated with cross-functional teams to design and implement robust API architecture, leading to a 60% decrease in API response time and increasing system reliability by 50%.• Mentored 2+ backend developers in adopting clean code principles and design patterns; enhanced codebase maintainability.• Integrated advanced statistics and role management into admin panel, leading to a 50% improvement in data analysis and seamless backend operations.• Improved user experience and engagement by integrating multimedia file handling and multilingual support into the admin panel, resulting in a 40% increase in user satisfaction and retention.• Integrated TradingView API to display real-time financial data and interactive charts for enhanced market analysis and trading strategies.