• Engineered a three-sided marketplace platform using Next.js and Tailwind CSS, connecting laborers, construction contractors, and end customers, resulting in a seamless and intuitive user experience. • Designed and implemented a responsive UI/UX using Figma, ensuring cross-device compatibility and enhancing user engagement across desktop and mobile platforms. • Developed a robust backend architecture with MongoDB, Express, and Node.js, enabling efficient data management and scalable performance for high user traffic. • Integrated Mapbox API for advanced location-based features, including autocomplete and job search via map pins, improving job discovery and user convenience. • Implemented Stripe as the payment gateway, enabling secure and seamless transactions between contractors and laborers, ensuring trust and reliability in financial operations. • Utilized Firebase Authentication for secure user login and registration, alongside Firestore for real-time messaging, enhancing communication and collaboration among platform users.