Jitender Saini

 Designed, developed, and maintained full-stack web applications using React.js, Node.js, Express.js, and MongoDB, reducing development time by 25% through component reuse.  Optimized MongoDB and MySQL database schemas and queries, improving query performance by 40%.  Developed and integrated 25+ RESTful APIs ensuring secure and seamless frontend–backend communication.  Implemented code splitting, lazy loading, and backend query optimization, improving page load speed by 35%.  Identified and resolved 100+ bugs and performance issues, increasing application stability and reducing downtime by 50%.

Supported and maintained 5+ enterprise applications, achieving 99.9% uptime through proactive monitoring and issue resolution. Analyzed system performance metrics and implemented optimizations, reducing average load time by 30% and crash rates by 45%. Managed and validated data for 5,000+ users, ensuring data accuracy and security using industry-standard encryption and validation techniques.

Assisted in developing responsive websites using HTML, CSS, JavaScript, and React. Collaborated with designers and developers to deliver client-ready web solutions on time.