Implemented an observability-focused logging& monitoring system with Elasticsearch, Prometheus, and Grafana, enabling real-time insights, proactive alerting, and efficient log management.

1. Developed and Optimized Video Stream SDK: 🚩Developed an SDK that supports HLS, LLHLS and MP4 video formats to improve compatibility and latency. 🚩Integrated multi-CDN scheduling to optimize performance and bypass restrictions. 🚩Implemented P2SP/P2P to reduce server load and secure origin addresses.2. Enhanced Product Functionality and Monitoring: 🚩Built a dashboard for real-time monitoring and testing to streamline issue resolution. 🚩Integrated front-end frameworks (Vue, React, VillainJS), video player features (iframe embedding, timeline preview, VAST ads), and data capture tools (Mux, GA4) to boost flexibility and performance.3. Strengthened Documentation and CI/CD Pipelines: Updated detailed Readme documentation and CI/CD pipelines to improve product usability and enable seamless deployments.

1. 104 Marketing Pro – Cloud-Based HR Solution for SMEs 🚩Migrated the system to the cloud from scratch, automating workflows and implementing real-time monitoring, reducing payroll processing time by 95%. 🚩Prototyped a Line-based clock-in system for feasibility evaluation.2. Compensation, Billing, and HR Intelligence Systems 🚩Built backend tools for salary surveys and compatibility assessments, delivering insights to HR teams. 🚩Developed a flexible billing system supporting pricing plans.3. HR Automation and Development Optimization 🚩Built a data-sharing center and improved CI/CD pipelines and OpenAPI documentation processes using AWS CloudFormation for IaC, reducing development and documentation time by over 90% and 66%, respectively. 🚩Created a monitoring tool, reducing maintenance time by 99% and improving reporting efficiency. 🚩Designed a Lambda-based framework to automate scheduled tasks like payroll and onboarding, fully migrated to the cloud, and streamlined workflows.

Developed the backend management system for the "moi-fashion" e-commerce platform, including order search, payment notifications, and an order calendar for improved user experience and tracking.