SAGAR SAHU

Experienced Developer at Cognizant with 3+ years in tech, transitioning from Performance Testing (2 years) to Backend Development (1+ year) . Now specializing in Node.js, SQL, NoSQL, AWS, and MVC architecture. Proven ability to deliver scalable solutions, achieving a 25% performance boost in backend projects. Strong collaborator in cross-functional teams. Passionate about continuous learning and agile development.

Contract Lifecycle Management   June 2024 – Present

• Contract lifecycle management (CLM) automates and streamlines contract processes during key stages.
• These stages include initiation, authoring, process and workflow, negotiation and approval, execution, ongoing management and compliance (within the repository), and contract renewal.
• Contributed as a backend developer in cognizant to a large-scale enterprise application using Node.js, Express.js, and MySQL.
• Developed and enhanced RESTful APIs, including building a secure user authentication module, within a large, established codebase.

LocalPro Marketplace

• Built a full-stack marketplace from scratch using Node.js, Express, EJS, and MySQL with Sequelize, featuring secure dual-role authentication with Passport.js.
• Engineered a complete booking lifecycle, a dynamic review/rating system and integrated Cloudinary / Multer for image uploads.
• GitHub - https://github.com/myselfsagar/localPro-marketplace.git
• Live Application - https://localpro-app.onrender.com/

Expense Tracker Application

• Developed a RESTful API using Node.js, Express, and MySQL/Sequelize, featuring JWT-based authentication and role-based access control.
• Integrated third-party APIs including Cashfree for payments, AWS S3 for file storage, and SendInBlue for secure password resets.
• Features: Add, edit, delete & download expenses, leaderboard.
• GitHub - https://github.com/myselfsagar/expense-tracker.git
• Demo Video - https://vimeo.com/1086792765/b554c5f7ce?ts=0&share=copy

Real-Time Group Chat Application

• Built a real-time chat application using Node.js, MongoDB, and Socket.IO for event-based communication.
• Implemented secure JWT authentication and integrated AWS S3 for multi-format file sharing (images, videos, PDFs) within groups.
• Key Features: Real-time group messaging, file sharing, group administration (invites, admin roles, member removal), message history loading, automated message archiving.
• GitHub - https://github.com/myselfsagar/group-chat-app.git