- SMS Gateway Integration: Architected and maintained backend services using Node.js, Terraform, AWS, and GitLab CI/CD - Message Routing and Delivery: Designed and implemented routing algorithms and load balancing techniques, ensuring timely message delivery and handling failures. Contributed to a team of 10 developers - Admin Dashboard: Fullstack development (Vue.js, PHP, Node.js) with a team of 5 developers and 1 QA. Led architectural decisions to ensure scalability and performance - Public Dashboard: Fullstack development (Vue.js, PHP, Node.js) in a team of 15, including 10 developers, 4 QAs, and 1 DevOps. Spearheaded the design of an efficient and maintainable architecture - Database Design: Developed and optimized database schemas to support high-volume data transactions and ensure data integrity across various services. Worked with both SQL and NoSQL databases, implementing best practices for performance tuning and data modeling. - Cloud AWS System Design: Designed and deployed new service with cloud infrastructure on AWS using services such as EC2, S3, RDS, and Lambda.

- Build Frontend and CI/CD pipeline from scratch (ReactJS, Redux, Terraform, AWS) team size of 3 developers and 1 QA. - Design and Develop backend using NodeJs and deploy on AWS EKS via CI/CD pipeline team size of 2 developers and 1 QA.

- Led a team of 8 members ( 3 backends, 3 frontends, 1 QA, 1 Mobile developer ). - Build What, Why, How kickoff process alongside with agile scrum process. - Build Frontend and Backend Repository from scratch and setup CI/CD pipeline for customer's AWS account ( NestJs, NextJs, Flutter, CircleCI, Flutter).

- Asset Preview and Visualization: Develop Vue.js components along with libraries like Three.js to create engaging experiences for previewing 2D or 3D assets, panoramic images. - Responsive and Mobile-Optimized Design: manage responsive and mobile-optimized interfaces. - Worked with web3-react and web3.js to integrate dApps for customer page using the Ethereum blockchain. - Worked with Solana ( Rust ) for building digital asset storage.

- System Architecture and Design: Participated in designing the overall architecture of the healthcare booking system, considering factors such as scalability, security, and performance. This involves collaborating with other team members to identify the best technology stack and frameworks to use. - Backend Development: worked on developing the server-side components of the booking system. This includes designing and implementing APIs, integrating with external services (such as payment gateways or insurance providers), managing databases, and ensuring data privacy and security. ( ExpressJs and Python, teamsize of 8 members). - Frontend Development: built the user interface for the booking system, focusing on providing a seamless and user-friendly experience. This involves developing responsive and accessible web pages using HTML, CSS, and JavaScript frameworks like ReactJs.