Sandeep Neupane

Developed and maintained high-performance web applications using MERN stack, improving response times by 40%. Designed and implemented RESTful and GraphQL APIs to enable scalable frontend-backend integration for customer self-service portals. Created and optimized complex SQL and NoSQL queries, improving reporting efficiency across dashboards. Led migration from monolithic to cloud-native microservices using Docker, Kubernetes, and AWS ECS, reducing infrastructure costs by 25%. Implemented serverless AWS Lambda functions for event-driven workflows, reducing backend load and latency. Authenticated authorization with JWT and OAuth2, including RBAC. Established CI/CD pipelines with Jenkins, GitHub Actions, and Docker for zero-downtime deployments. Implemented automated testing with Jest, Cypress, and Pytest achieving 85%+ coverage. Collaborated with UI/UX to enhance accessibility (WCAG 2.1) and responsiveness. Mentored 3+ junior developers, conducted regular code reviews. Built internal m

Developed and maintained high-performance web applications using the MERN stack, improving response times by 40%. Designed and implemented RESTful and GraphQL APIs for scalable integration. Led migration of legacy systems to cloud-native microservices on Docker, Kubernetes, and AWS ECS, reducing costs by 25%. Developed serverless AWS Lambda functions improving API response speed. Managed authentication using JWT and OAuth2 to enhance security. Established CI/CD pipelines for zero-downtime deployments using Jenkins, GitHub Actions, and Docker. Implemented automated testing with Jest, Cypress, and Pytest achieving 85%+ coverage. Collaborated with UI/UX designers to make interfaces accessible and responsive. Mentored junior developers and conducted code reviews. Integrated third-party APIs such as Twilio, Stripe, and SendGrid. Ensured OWASP Top 10 compliance and performed regular security audits. Created internal documentation supporting onboarding and maintenance workflows.

Developed and maintained high-performance web applications using MERN stack, improving response times by 40%. Designed and implemented RESTful and GraphQL APIs for scalable frontend-backend integration. Led migration of legacy systems to cloud-native microservices architecture using Docker, Kubernetes, and AWS ECS, reducing costs by 25%. Developed AWS Lambda serverless functions for event-driven workflows, enhancing API responsiveness. Implemented authentication with JWT and OAuth2 and established CI/CD pipelines with Jenkins and GitHub Actions, ensuring zero-downtime deployments. Mentored junior developers, enhanced UI accessibility per WCAG 2.1, and integrated third-party APIs like Twilio and Stripe. Collaborated on security audits and maintained OWASP Top 10 standards.