Sahil Langoo

Responsive job portal engineered with React, Redux, DaisyUI, and TanStack Table, featuring 10,000+ job data grids, Schema.org Google Rich Results, and multilingual i18n.

• ›Architecture & UI/UX: Engineered a responsive, mobile-first job portal using React and DaisyUI, establishing an accessible, component-driven design system that reduced design-to-development cycle times.
• ›Data Grid & Filtration: Architected high-performance tabular data interfaces using TanStack Table, implementing multi-column sorting, facet-based filtering, and server-side pagination to smoothly render 10,000+ job postings without UI latency.
• ›State Management: Designed scalable global state management workflows with Redux, centralizing complex search parameters, filter states, and bookmarking mechanics with minimal re-renders.
• ›Performance Optimization: Optimized web vitals by implementing route-based code splitting, lazy loading, and custom shimmer UI loading skeletons, cutting First Contentful Paint (FCP) by 35% and eliminating Cumulative Layout Shift (CLS).
• ›SEO & Rich Search Results: Implemented structured Schema.org (JobPosting) JSON-LD metadata and dynamic Open Graph tags, qualifying the application for Google Rich Results and boosting organic search discoverability and click-through rates.
• ›Internationalization (i18n): Built an end-to-end multilingual localization architecture supporting frictionless locale switching and localized content delivery for diverse user demographics.

Multi-tenant ad platform featuring Git branch Vercel CI/CD, hybrid Meta CAPI attribution, SHA-256 PII protection, and Razorpay webhook reconciliation.

• ›Multi-Tenant Architecture: Developed and scaled a multi-tenant ad-driven web application with isolated tenant configuration, dynamic branding, and scoped data access across client environments.
• ›Automated CI/CD & Deployments: Optimized deployment workflows on Vercel using Git branch-based preview and production environments, accelerating deployment velocity and facilitating risk-free staging verifications.
• ›Ad Attribution & Privacy Compliance: Integrated hybrid ad tracking via Meta Pixel and server-side Meta Conversions API (CAPI) with SHA-256 data hashing, preserving measurement accuracy against ad blockers while ensuring strict user privacy.
• ›Secure Payment Workflows: Implemented end-to-end payment processing with Razorpay, integrating signature verification, automated subscription invoicing, and resilient webhook handlers for instant payment reconciliation.
• ›Security & PII Protection: Enforced rigorous frontend and backend data sanitation, stripping and masking Personally Identifiable Information (PII) from URL query parameters and telemetry payloads to maintain regulatory compliance and prevent sensitive data leakage.

Full-stack school management SaaS with Next.js 16 standalone build on Hostinger VPS, TanStack grids, Drizzle ORM, Better Auth RBAC, and automated Telegram/email fee alerts.

• ›Full-Stack Architecture & Deployment: Architected and deployed an enterprise-grade school management platform using Next.js 16 configured with a standalone output build hosted on Hostinger VPS, reducing runtime memory overhead and optimizing server-side execution.
• ›Student Data Management: Engineered scalable administrative data grids using TanStack Table and Shadcn UI to smoothly manage 500+ student profiles, enrollment records, academic standings, and attendance logs with zero UI latency.
• ›Client-Side State & Async Data: Utilized TanStack Query and TanStack Router to establish responsive data caching, optimistic UI updates, and intelligent prefetching, reducing API request redundancy by 40%.
• ›Type-Safe Forms & Validation: Standardized all institutional data intake pipelines using TanStack Form with strict Zod schema validation, eliminating client-server schema drifts across complex multi-step student admission and grading forms.
• ›Relational Data Modeling & ORM: Designed and normalized relational schemas in MySQL using Drizzle ORM, crafting type-safe queries, composite indexes, and automated migrations that maintained sub-50ms execution times across complex joins.
• ›Authentication & Role-Based Access (RBAC): Integrated Better Auth to implement strict session-based authentication and role-based access control, securing sensitive student and administrative data across distinct permission tiers (Admin, Teacher, Student, Parent).
• ›Edge Security & Cloud Asset Storage: Integrated Cloudflare CDN and WAF rules to ensure high availability and defense against malicious traffic, utilizing Cloudflare R2 object buckets for cost-effective, high-throughput storage of documents, profile photos, and report cards.
• ›Fee Processing & Automated Multi-Channel Alerts: Built an end-to-end fee tracking and payment reconciliation pipeline, featuring automated real-time receipt generation and multi-channel notifications dispatched via Telegram Bot API and transactional email.