Naveen Singh — Full Stack Developer
Full Stack · Technical Architect

Architecting Scalable Full-Stack Systems

Senior Web Developer —

6+ Years Experience
35+ Projects Delivered
5 Star Upwork Rating
100% Scalable Mindset
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Currently freelancing · Open to new projects

Full-stack & technical architecture on Upwork - building scalable web apps and looking for more client work

OPEN TO WORK Upwork
Naveen Singh
About

Full-stack engineering with a technical architect mindset.

I design and ship production web applications end to end—React and Next.js frontends, Node.js and Laravel backends, RESTful APIs, and cloud-ready deployments. My work spans microservices, event-driven systems, admin dashboards, and marketplaces; I also integrate Gen AI and RAG where products need intelligent chat or document features.

Technical Architecture

Microservices, REST & gRPC APIs, WebSockets, Redis, RabbitMQ, and scalable data layers.

Full-Stack Delivery

React/Redux UIs, Node & Laravel services, Docker on AWS/DigitalOcean—zero to production.

Experience

Work history

Feb 2020 — Oct 2022

Web Developer

01 Synergy Co.

Built dynamic Laravel/PHP applications with responsive UIs, designed REST APIs for web and mobile, and integrated payment gateways and third-party services in Agile teams.

Oct 2022 — October 2024

Senior Web Developer

01 Synergy Co. · Ludhiana, India

Remote React developer for KlearNow.AI (US)—Ops, Broker, and Engine dashboards in a microfrontends setup; Node.js microservices for logistics and customs automation. In-house full-stack work with Laravel/Node, Docker, Redis, RabbitMQ, and DigitalOcean deployments.

November 2024 — Present

Full Stack Developer (Freelancing)

Upwork · Client projects — global

Currently freelancing—shipping scalable web apps for clients worldwide (30+ products delivered). Open to new projects—MVPs, SaaS, marketplaces, dashboards, and selective Gen AI integrations. View Upwork profile →

Skills & Architecture

Full-stack and system design first; Gen AI & RAG where products need it.

account_tree

Technical Architecture

System Design Microservices REST APIs Event-Driven gRPC WebSockets
layers

Full Stack

React Redux Next.js Node.js Express.js Laravel TypeScript
database

Data

MongoDB PostgreSQL MySQL Redis RabbitMQ
cloud

Cloud & DevOps

Docker AWS Lambda Nginx DigitalOcean
psychology

Gen AI & RAG

OpenAI API RAG AI Chatbots PDF Intelligence
Portfolio

Architected Client Products

Production full-stack builds on Upwork—microservices, dashboards, marketplaces, and selective Gen AI features (Coach AI, PDF AI).

PaintNite

Full Stack Engineer · React, Node.js, AWS, Microservices

A large-scale social entertainment platform across North America—30+ interconnected apps for events, bookings, payments, and analytics. Built and maintained distributed architecture for real-time user interactions at regional scale.

  • Customer-facing web, mobile, and internal dashboards
  • Real-time bookings, payments, and multi-region analytics
  • Microservices on AWS with DevOps pipelines
React Node.js AWS Microservices Full-Stack
PaintNite platform showcase
PaintNite landing page
PaintNite mobile experience
PaintNite platform collage

JoinPeel (PEEL)

Full Stack Developer · React, Next.js, Supabase, TailwindCSS

Project Overview

JoinPeel is a farm-to-consumer marketplace connecting local farmers with eco-conscious buyers for transparent and direct product sales. It offers geo-based product discovery, fast checkout via Stripe, real-time chat, order tracking, and customizable seller profiles.

Platform Features

  • Role switching—users can act as buyer or seller from one account
  • Favorites, product requests, and in-platform messaging
  • Admin dashboard for users, listings, payments, and analytics
  • Promotes sustainable, community-driven commerce across the USA

Key Technologies

React Next.js Node.js Supabase Stripe TailwindCSS JavaScript HTML5
JoinPeel marketplace hero
JoinPeel goal and solution
JoinPeel user roles
JoinPeel platform pages
JoinPeel personalization

HRMaster

Lead Full Stack Developer · React, PostgreSQL, OAuth, API

Project Overview

Enterprise-grade SaaS HR platform covering recruitment through retirement—streamlining hiring, employee lifecycle, payroll, leave, performance, and analytics for modern B2B teams. Built on AWS with a React frontend and modular microservices backend.

Core Modules

  • Real-time dashboard with workforce KPIs and activity feeds
  • Employee directory, recruitment hub, and leave workflows
  • Payroll processing, performance reviews, and time tracking
  • Reports & analytics with export; event-driven notifications

Key Technologies

React Redux Node.js PostgreSQL OAuth AWS GraphQL WebSockets Slack
HRMaster landing page
HRMaster features
HRMaster dashboard
HRMaster employees
HRMaster leave management
HRMaster payroll
HRMaster performance
HRMaster time tracking
HRMaster reports

Hive

Full-Stack Developer · React, SaaS

SaaS project management solution · $23M raised

Project Overview

Hive is a cutting-edge productivity platform built from the ground up to solve prioritization, communication bottlenecks, and inefficient workflows. It replaces scattered browser tabs with a sleek, integrated workspace—Kanban boards, Gantt timelines, and team actions in one place.

Impact

  • Enterprise-grade SaaS for seamless teamwork at scale
  • Content calendar, project timelines, and real-time collaboration
  • Part of a full-stack team delivering product from concept to production

Key Technologies

React Full-Stack SaaS Product Development Web Development
Hive SaaS — content calendar Kanban board
Hive Gantt timeline and project planning

PatronPal

Full Stack Developer · MERN Stack

Online restaurant ordering platform

Project Overview

PatronPal streamlines restaurant operations end to end—menus, real-time orders, and secure payments in one platform. Owners update offerings, track fulfillment live, and manage checkout with integrated Stripe, improving efficiency and the customer dining experience.

Platform Features

  • Delivery and pickup ordering with location-based discovery
  • Category browsing, filters, offers, and restaurant listings
  • Business onboarding for restaurants and multi-region coverage
  • Secure payments and intuitive back-office management

Key Technologies

React Node.js MERN MEAN Stripe
PatronPal ordering platform — browse, search, and checkout
PatronPal landing page — delivery and restaurant listings

PDF AI

Chrome Extension Developer · React, Tailwind CSS

Chat with your PDF online platform

Project Overview

Upload a PDF and chat with it—get concise summaries, ask questions, and find answers without reading every page. Built as a Chrome extension with subscription management, powered by React, Tailwind CSS, and shadcn/ui.

Key Features

  • Split-view PDF reader with AI chat and page citations
  • Instant summaries and Q&A on long documents
  • Stripe-backed subscriptions and free-tier onboarding
  • Chrome extension for in-browser PDF interaction

Key Technologies

React Next.js Tailwind CSS Chrome Extension Stripe Plugin Development
PDF AI landing page — upload and chat with any PDF
PDF AI app — PDF viewer with AI chat interface

Coach AI

MERN Stack Developer · React, Node.js, MySQL

Discover the Power of AI — business coaching platform

Project Overview

Coach AI is a state-of-the-art platform built for professional growth—combining business coaching workflows with an AI chatbot that simplifies complex processes. Users manage accounts, personalize coaching preferences, and chat with AI in a polished, production-ready experience.

Key Features

  • Marketing landing with features, onboarding steps, and social proof
  • AI chat with history, multilingual support, and real-time messaging
  • Blog, categories, and content pages for engagement
  • API-integrated MERN stack with MySQL persistence

Key Technologies

React Node.js MySQL MERN AI Chatbot API Integration
Coach AI landing — Discover the Power of Coach AI
Coach AI chat application with conversation history
Coach AI full landing page — features and onboarding
Coach AI blog and category pages

DocuSure

Full Stack Developer · React, Node.js, TypeScript

Document chase infrastructure for insurance

Project Overview

DocuSure automates insurance document chasing for brokers and underwriters. Daily emails and SMS keep customers informed of required documents, driving prompt submissions without manual follow-up—so every chase reaches completion reliably.

Key Features

  • Dashboard analytics—chase lists, status breakdowns, and KPIs
  • Automated chase timelines with DVLA and LexisNexis integrations
  • Document review workflows for insurers and brokers
  • Marketing site with insurer/broker benefits and demo requests

Key Technologies

React Node.js TypeScript PostgreSQL Redis
DocuSure landing page — desktop and mobile
DocuSure UI case study — dashboard and integrations
DocuSure platform screens — chase list and document workflow

Stream Talent

Full Stack Developer · React, Node.js, Gatsby

Specialist recruitment platform — MVP delivered in under 3 months

Project Overview

Stream Talent connects candidates with opportunities and lets clients post jobs seamlessly. I led end-to-end MVP development—front-end, back-end, and microservice architecture—so the agency could launch a fast, scalable recruitment experience with clear paths for employers and candidates.

Impact & Highlights

  • Built the platform from scratch with a 3-person team; 100% positive client feedback
  • Gatsby for blazing-fast rendering; Material UI for responsive, polished UI
  • Smart filters, smooth navigation, and mobile-first flows for higher engagement
  • Microservices foundation for future growth and modular scaling

Key Technologies

React Node.js Gatsby JavaScript Full-Stack Microservices Material UI
Stream Talent — recruitment platform overview
Stream Talent mobile — employer and candidate flows
Stream Talent employer hero landing
Stream Talent clients and industries
Stream Talent services and recruitment offerings
Stream Talent team — experience experts
Stream Talent contact form with smart filters

Mediox

MERN Stack Developer · Next.js, Node.js

Caring for your health — HIPAA-compliant health management

Project Overview

Mediox is a HIPAA-compliant health management platform for comprehensive care and personalized wellness—health dashboards, records, appointments, telemedicine, and secure provider communication in one user-centric experience.

Key Features

  • Personalized health dashboard, records, and appointment scheduling
  • Health tracking, analytics, and goal-based wellness recommendations
  • Telemedicine, encrypted messaging, and emergency access tools
  • Payment integration; deployed on AWS EC2 with HIPAA-aware architecture

Key Technologies

React Next.js Node.js MERN HIPAA Amazon EC2 Stripe
Mediox healthcare platform — landing and specialty services

MyTicket App

Backend Developer · Node.js, Express.js

Ticketing & event booking for tourists and organisers

Project Overview

MyTicket is a mobile-first ticketing and event booking platform for tourists and event organisers—discover events and experiences, book tickets with QR check-in, and connect with local guides (Murshid). I built the server-side foundation that powers bookings, listings, and operator workflows.

My Role

  • RESTful APIs with Node.js and Express.js for events, tickets, and user accounts
  • Admin analytics and dashboards for organisers and platform operators
  • Backend integration supporting the Flutter mobile client and booking flows

Key Technologies

Node.js Express.js RESTful API MongoDB Flutter Admin Dashboard
MyTicket — mobile app design and development showcase
MyTicket — splash screen and discover home
MyTicket — onboarding, sign up, and profile flows
MyTicket — ticket booking, QR pass, and Murshid guides
MyTicket — events, experiences, and profile screens

Trilok Propco

Full Stack Web Developer · React, Node.js, MongoDB

Luxury residential real estate — zero brokerage, Kolkata

Project Overview

Trilok Propco is a real estate platform for luxury residential properties in Kolkata—under-construction and ready-to-move homes with no brokerage fees. I built the full stack with React, Node.js, Express, and MongoDB, including secure admin and user dashboards, property search with map views, blogs, and side-by-side comparison.

Key Features

  • Homepage with featured projects, city exploration, and advanced property search
  • Explore Properties — filters, residential/commercial tabs, and Leaflet map integration
  • Blog hub with category filters and property comparison tool
  • JWT-secured dashboards; deployed on AWS EC2

Key Technologies

React Node.js Express.js MongoDB JWT Amazon EC2
Trilok Propco — homepage with featured luxury properties
Trilok Propco — explore properties with map and filters
Trilok Propco — explore blogs with category filters
Trilok Propco — compare properties side by side

How I Work

A simple mindset—understand the real problem, design for scale, ship in clear steps, and keep improving with feedback.

Step 01

Listen & Clarify

Start with users, goals, and constraints—not the stack. I ask the right questions so we build what actually matters.

Step 02

Architect & Plan

Sketch the system—APIs, data flow, and milestones—so the app stays simple today and scalable tomorrow.

Step 03

Ship & Refine

Deliver working slices early, test with real users, polish UX, and iterate—production quality, not endless prototypes.

Open to work

Have a product in mind? Let's make it real.

I'm freelancing and taking on new projects—scalable web apps, MVPs, dashboards, and full-stack builds. Tell me what you're building; I usually reply within 24 hours.