Siddhanta ChandraSiddhanta Chandra

Contributed to a Meghalaya Government-sponsored D2C platform from MVP to production, reaching 2,000+ users and 1,000+ bookings in its first month.

• Built the ordering and booking flow end to end, adding order locking to prevent overselling under concurrent demand.
• Integrated payment gateway workflows, location polling, and support ticketing into production.
• Developed REST APIs and business logic in NestJS, TypeScript, Prisma, and PostgreSQL, powering booking, checkout, and support flows.
• Built custom CRM workflows for sensitive KYC data, with role-based access control, authentication, and verification flows.
• Cut landing page load time by 107 ms and removed redundant API calls using TanStack Query caching, background refetching, and query invalidation.
• Built reusable Next.js and Tailwind CSS components for browsing, ordering, and payment interfaces, used across multiple application modules.

Modernized CricketWinner's public-facing website by migrating it from a WordPress theme to a React front end.

• Migrated the site's WordPress theme to React and CSS, rebuilding the layout to modern standards and integrating WCAG accessibility guidelines.
• Converted all images to WebP and removed render-blocking resources, reducing load time by 46%.
• Redesigned all public-facing pages with responsive layouts and current design standards, and optimized article pages for SEO with meta tags, structured data, semantic headings, and improved page speed.
• Integrated dynamic Google Ads and custom ad spaces into the page layouts.
• Implemented React Query caching and query management to cut redundant API requests.
• Collaborated with the client's back-end developers to design and integrate APIs.