Pawan Kumar

Overview

A comprehensive multi-tenant SaaS platform that helps salon businesses manage day-to-day operations from one application — appointment scheduling, CRM, employee management, POS, inventory, marketing automation, loyalty programs, gift cards, subscription billing, and reporting. Built as a shared-database, row-level multi-tenant system where multiple salons operate independently on the same infrastructure.

Key Contributions

• Developed core backend modules, REST APIs, business workflows, third-party integrations, architecture improvements, and production deployment support across the full application lifecycle.
• Built appointment and scheduling workflows with calendar-based booking, stylist availability, time-slot validation, conflict prevention, and status tracking for receptionists, stylists, and customers.
• Implemented POS combining appointment checkout and retail sales — product sales, barcode scanning, inventory deduction, tax/discounts, gift cards, loyalty rewards, and Stripe Payment Intents.
• Designed CRM, employee management, and marketing automation features including Twilio SMS campaigns, bulk email, segmentation, loyalty rewards, and deals.
• Designed and developed REST APIs for the React Native mobile app covering registration, authentication, appointments, payments, deals, messaging, notifications, and loyalty.
• Implemented shared-database, row-level multi-tenant architecture with owner user_id / parent_id isolation, role-based authorization across platform, salon owner, staff, and customer layers.
• Integrated Stripe Subscriptions with webhook-driven event processing for creation, renewal, upgrade/downgrade, cancellation, and payment success/failure — automatically syncing feature access with billing status.

Overview

An enterprise survey and analytics platform that helps organizations create customized surveys, distribute them securely, collect responses from thousands of participants, and generate AI-assisted reports — reducing manual effort in processing large datasets and turning unstructured feedback into structured business insights.

Key Contributions

• Built flexible survey management supporting multiple-choice, rating scales, open-ended questions, dynamic creation, scheduling, email invitations, response tracking, and analytics dashboards.
• Designed a dynamic Excel import engine with header detection, flexible column mapping, validation, duplicate detection, error reporting, and partial import handling — so organizations can import spreadsheets without fixed templates.
• Integrated OpenAI API with structured prompts to automate summarization, categorization, theme extraction, and sentiment organization of thousands of open-ended survey responses.
• Built analytics and reporting with response summaries, participation stats, rating distributions, charts, trend analysis, and PDF exports.
• Owned performance optimization, production deployment on AWS EC2, Nginx configuration, and ongoing production support.

Overview

A business automation platform that synchronizes HubSpot CRM data, processes large datasets through background workers, and provides analytics through automated workflows — keeping long synchronization jobs from blocking application responsiveness.

Key Contributions

• Built continuous HubSpot CRM synchronization for contacts, companies, deals, custom properties, and activity records.
• Implemented asynchronous background workers so CRM sync is queued, validated, transformed, and stored in MongoDB without blocking user interactions.
• Optimized MongoDB collections with indexing, query improvements, and reduced duplicate processing for faster dashboards under continuous sync load.
• Containerized the application with Docker and deployed to production using AWS ECR and ECS with environment configuration and release management.
• Developed React frontend and Node.js/Express backend APIs with Google OAuth authentication and modular service architecture.

Overview

A hotel security and operations management platform that digitizes day-to-day security workflows — visitor tracking, incident reporting, vehicle management, lost & found, equipment handling, and security checkpoints — replacing paper-based records with role-based digital operations.

Key Contributions

• Developed visitor management with registration, identity verification, barcode-based passes, entry/exit tracking, and visit history.
• Built incident reporting with status tracking, evidence attachment, and audit history, plus Lost & Found ownership and recovery workflows.
• Implemented vehicle and equipment management for employee/visitor vehicles, entry/exit logs, and issue/return accountability for security assets.
• Designed role-based workflows, centralized operational reporting, reusable CRUD modules, and service-layer architecture for maintainability.
• Optimized queries for large visitor and incident logs and improved overall application performance and production support.

Overview

An online learning platform that helps students prepare for competitive examinations through structured learning content, quizzes, mock tests, flashcards, and performance analytics, with administrator tools for managing large educational datasets.

Key Contributions

• Developed core learning modules including OTP authentication, social login, daily quizzes, mock tests, flashcards, previous-year questions, topic-wise practice, and performance dashboards.
• Designed administrator content management with Excel-based bulk question imports, topic categorization, subject mapping, difficulty levels, and batch uploads.
• Built student analytics covering quiz performance, mock test analysis, subject/topic progress, and overall learning trends.
• Integrated AWS S3 for scalable storage of learning materials, images, documents, and educational resources.
• Managed production deployment with Laravel Forge including server provisioning, SSL, release management, and monitoring.