Samrat Dutta Roy

Engineering core client-side features, asset pipelines, and performance optimizations across high-scale eCommerce and gifting platforms.

• →Improved site performance by 30% by implementing a service worker in SnackMagic.
• →Enhanced global user experience by adding a multi-language translator to bystadium.com, opening the platform to non-English-speaking users and expanding accessibility across regions.
• →Integrated June.so and Microsoft Clarity for user interaction analytics, giving the product team direct visibility into real user behavior and enabling data-driven prioritization of UX fixes.
• →Optimized SEO with canonical URLs, metadata, hrefLangs, and schema markup in collaboration with the SEO team.
• →Built a CMS-powered page using Next.js Incremental Static Regeneration (ISR) with on-demand revalidation, and integrated Prismic.io as the CMS — enabling non-technical teams to publish and update content independently without redeployment.
• →Built a config-based product listing filter for SwagMagic using Context API, syncing state from the URL on initial load and debouncing filter-to-URL updates — achieving an 85-90% reduction in filter response time.
• →Implemented an event queuing system that buffered critical analytics and tracking events fired before third-party SDKs were fully initialized, eliminating 5-6 lost tracking events per page during the bootstrap phase.
• →Currently leading the migration of the icon font family to an SVG sprite sheet, reducing render-blocking font requests and improving icon load performance.
• →Built the priceless order creation flow, handling order entry outside standard pricing rules.
• →Mentored junior developers, reviewed peers' PRs, participated in candidate interviews, and contributed to high-level architectural design discussions.

Delivered end-to-end frontend architecture, checkout solutions, and performance engineering for e-commerce.

• →Took part in business discussions and translated requirements into technical solutions, from checkout and cart architecture to SEO and performance initiatives.
• →Built the checkout flow end-to-end, including validation, order summary, and payment handoff.
• →Resolved cart merge conflicts across multiple vendors, reconciling line items and quantities into a single consistent cart state.
• →Implemented local cart management for non-authenticated users, persisting cart state client-side and syncing it once the user logged in.
• →Implemented image optimization strategies to reduce payload size and improve page load speed.
• →Configured caching for the RSC payload and static assets (excluding images) to speed up subsequent page loads.
• →Added a Next.js top loader for instant navigation feedback and Suspense-based loading states to improve perceived performance.
• →Handled SEO — canonical tags, meta titles/descriptions, JSON-LD structured data — and analytics.
• →Implemented custom 404 handling via middleware for cleaner routing and error handling.
• →Set up on-demand cache invalidation for static pages, keeping content fresh without full redeployments.
• →Added pre-commit hooks for ESLint and Prettier to enforce code quality and consistency across the codebase.

Engineered frontend components and user interface features within enterprise cross-functional teams.

• →Built frontend components and user interfaces using HTML, CSS, JavaScript, and React.
• →Collaborated with agile engineering teams to ensure clean, maintainable, and responsive web experiences.