In my role as a Junior Software Developer at Excellis IT in Kolkata, West Bengal, India, I led the smart lock IoT project from inception to completion. I enhanced device connectivity by 30% through Node.js optimization, developed a multi-role management dashboard to increase monitoring efficiency by 25%, and implemented end-to-end encryption to reduce data breach vulnerabilities by 40%.

• Developed scalable solutions using Node.js and Express.js on Upwork, focusing on backend development for client projects.• Designed and integrated REST APIs to enhance application functionality and meet client requirements.• Utilized Mongoose ODM for efficient MongoDB database management and integration, ensuring high-quality code delivery.• Employed Git for version control and collaboration, ensuring timely project completion and client satisfaction.