David Hansen

• Led a team of 3 junior developers undertaking the SDLC for 7 projects and designing solution architecture. • Increased accuracy of WAF and DDoS/Bot prevention engine by 78% through integrating AI and ML models. • Optimized data structure and algorithm in NGINX modules improving the performance of WAF by 13%. • Built user-friendly websites for clients across various platforms using the latest industry-adopted technologies and following TDD practice. This process decreased the error rate by 23%.

• Spearheaded design and development of a high-performance network gateway handling over 1,000,000 requests per second utilizing non-interrupt architecture while maintaining high availability of over 99.999%. • Increased system performance by 24% through the development of high-quality, scalable backend systems to support business-critical applications while working with the DevOps team following the CI/CD practices. • Leveraged knowledge in Embedded C/C++, Network Engineering, DPDK, TCP/IP, Multi-thread

• Improved the performance of the e-commerce platform by optimizing SQL database structures and implementing caching. This process reduced the latency of the backend services by 12%. • Increased reporting speed of the internal analytics team by 24% by designing and implementing RESTful API services for the internal ERP of the company. • Utilized SNMP protocol to develop a monitoring system for managing 70+ network devices.