Webnyxa Technologies
Pawan Kumar
Full Stack Developer
Resume profile for Pawan Kumar, Full Stack Developer at Webnyxa Technologies.
H-53, First Floor, Office No. 01, Sec 63, Noida, Uttar Pradesh - 201301, IN.
Professional Summary
Full Stack Developer with over four years of experience designing, developing, and maintaining scalable web applications, SaaS products, enterprise platforms, and cloud-based solutions. He has worked across multiple domains, including salon management, customer relationship management (CRM), survey analytics, hospitality, and education technology. His expertise spans the complete software development lifecycle — from understanding business requirements and designing application architecture to implementing backend services, developing responsive user interfaces, integrating third-party services, optimizing databases, deploying applications to production, and supporting live systems. Pawan enjoys solving complex engineering problems through clean architecture, automation, and scalable system design, and is passionate about learning new technologies and continuously improving development workflows through modern cloud platforms, AI-assisted development, and engineering best practices.
Pawan began his professional journey at Webnyxa Technologies Pvt. Ltd. as a Trainee Software Engineer (September 2021 – March 2022), focusing on Laravel, PHP, MySQL, frontend development, debugging, and production support while strengthening his understanding of backend development, relational databases, object-oriented programming, and modern web application architecture.
From April 2022 to present, he progressed into a Software Engineer / Full Stack Developer role by taking ownership of complete product modules. Responsibilities expanded to designing database structures, building REST APIs, integrating third-party services such as Stripe, HubSpot, Twilio, and OpenAI, optimizing application performance, deploying AWS and Docker-based production environments, and collaborating directly with clients and internal teams.
Today he contributes to the complete product lifecycle — from planning and architecture to development, deployment, maintenance, and continuous improvement — across enterprise-grade applications and SaaS platforms involving multi-tenant architecture, secure authentication, payment integrations, automation pipelines, and cloud-native deployments. His development philosophy centers on understanding business requirements before writing code, designing reusable architecture, building secure scalable APIs, optimizing databases, automating repetitive processes, and delivering production-ready solutions.
Experience
4+ years as a Full Stack Developer at Webnyxa Technologies — Trainee Software Engineer (Sep 2021 – Mar 2022), then Software Engineer / Full Stack Developer (Apr 2022 – Present) across SaaS, CRM, survey analytics, hospitality, and edtech.
Skills
Frontend
Backend
Database
Cloud & Infrastructure
Third-Party Integrations
Development Tools
Core Expertise
Projects I Worked On
Easo — Multi-Tenant Salon Management SaaS Platform
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.
Infinity System — Survey Management & AI Analytics Platform
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.
Scalr — CRM Integration & Business Data Processing Platform
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.
SOVA — Hotel Security & Operations Management Platform
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.
Manasprint — Digital Learning & UPSC Preparation Platform
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.