Full-Stack Development • SaaS • Web Applications

Available for selected freelance projects

Full-Stack Developer building production-ready web applications.

I build modern SaaS products, MVPs and business applications across frontend, backend, APIs, databases, integrations and cloud infrastructure.

Years of professional experience

Building and maintaining production web applications.

Tech Architecture

Full-Stack System

Frontend

Next.js · React · TypeScript

API Layer

Node.js · Express · NestJS

Database

PostgreSQL · MongoDB

Cloud

AWS · Production Deployment

End-to-end ownership

Available for work

Let's build something

Also handles

WhatsApp APIPushAWS

What I Build

Engineering scalable web applications & products

Focused on business outcomes, robust architecture, and complete product development.

SaaS Products

Scalable web products with real business workflows.

Next.jsNode.jsPostgreSQLAuth & Billing

MVP Development

Turn product ideas into usable MVPs for real-world validation.

Rapid BuildFull-StackProduction Ready

Full-Stack Web Applications

Complete customer-facing and business applications.

React.jsTypeScriptNode.jsREST APIs

Admin Dashboards

Internal tools for managing users, workflows and business operations.

AnalyticsRole AccessWorkflows

API & Backend Development

Secure APIs and backend systems connected to real product workflows.

Express.jsNestJSPostgreSQLMongoDB

Third-Party Integrations

Connect external APIs, notifications and business services.

WhatsApp APIPush NotificationsWebhooks

AWS / Production Deployment

Deploy and operate production-ready applications.

AWSCI/CDCloud Infrastructure

Featured Work

Selected Work & Case Studies

Real production systems, SaaS applications, and enterprise products shipped to users.

Featured Production Case StudyLive Platform

LocalDoctors — Production Healthcare Platform

A multi-sided healthcare platform connecting patients with doctors and clinics while providing administrative tools for managing the platform.

Next.jsNode.jsExpress.jsPostgreSQLREST APIsAWSThird-party APIs

01 // The Product

LocalDoctors bridges healthcare access by providing a unified digital infrastructure. Patients easily schedule consultations, healthcare providers manage appointments seamlessly, clinics organize staff operations, and administrators oversee system compliance.

02 // My Personal Contribution

•Customer-facing UI

•Doctor-related functionality

•Clinic-facing functionality

•Admin dashboard

•REST API development

•PostgreSQL integration

•Core platform workflows

•Push notifications for mobile application

•WhatsApp notifications through third-party APIs

•AWS production setup

03 // Product Surfaces (Multi-Sided Platform)

Interactive View

Customer Surface

Live Surface

Patient Experience

Responsive web UI allowing patients to discover doctors by specialty/location, book appointments, track medical history, and receive automated reminders.

Key System Workflows

Specialty & Clinic Search with Filtering

Seamless Slot Selection & Booking Workflow

Automated WhatsApp Appointment Confirmations

Personal Medical History & Records Portal

Want to see the full technical breakdown, screenshots, and architecture?

View Full Case Study

More Production Work & Web Applications

Full-stack web apps, developer tools, and e-learning platforms.

Web Application

Solo Developer

DToolKits

DToolkits is a fast, privacy-first developer tools platform for working with JSON and APIs.

Next.jsTurbopackTailwind CSSZustand+1 more

Web Application

Frontend Developer

Perfectice

An e-learning platform for colleges built using micro-frontend architecture with React.js and Webpack.

ReactJsWebpackTailwind CSSRedux-toolkit+1 more

Web Application

Full-Stack Developer

williams chicken training and support

An online training portal for Williams Chicken trainers, powered by Open edX.

ReactJsTailwind CSSRedux-toolkitAxios+1 more

View All Projects

How I Work

A process designed for reliability

Organized, transparent, and outcome-focused. You'll always know where we stand.

Discovery

Understand the product, users and business requirements.

Planning

Define architecture, workflows and implementation priorities.

Development

Build, integrate and iterate across frontend and backend.

Launch & Scale

Deploy, monitor and improve the product in production.

About

Full-Stack Developer with end-to-end product ownership

I build products, not just pages.

I work across frontend, backend, databases, APIs, third-party integrations and cloud infrastructure — helping turn product ideas and business requirements into production-ready applications.

My main tech stack includes React.js, Next.js, JavaScript, TypeScript, Node.js, Express.js, NestJS, PostgreSQL, MongoDB, REST APIs, and AWS.

Development Lifecycle

Requirements→UI→Frontend→Backend→Database→APIs→Integrations→Deployment

Years of professional experience building
production web applications

developer.profile

v2.0

Subhajit Maity

Full-Stack Product Engineer

Available for freelance work

Core Technologies

Frontend

React.jsNext.jsTypeScriptJavaScriptTailwind CSSGSAP

Backend

Node.jsExpress.jsNestJSREST APIs

Database

PostgreSQLMongoDB

Cloud / Infrastructure

AWS

Integrations & Messaging

Third-party API integrationsPush notificationsWhatsApp API integrations

Focus Areas

SaaS Product Development

Real-Time Applications

API Architecture

Frontend Engineering

Experience

Work Experience & Technical Roles

A history of building production web applications, designing APIs, and shipping features.

MERN Stack Developer

Adgion Technologies Ptv Ltd

Feb,2026 — Present

•Led the development, maintenance, and continuous improvement of web-based products, including Local Doctors (http://www.localdoctors.net), delivering scalable features, optimizing performance, and supporting business growth.

MERN Stack Developer

Sapco iot Pvt ltd

Feb,2024 — Oct,2025

•• Initially joined as a Frontend Developer, building responsive interfaces in React.js, Next.js, and Tailwind CSS.

•• Later took initiative to develop backend features using Node.js, Express, and MongoDB.

•• Contributed to two full-stack projects from design to deployment.

Web Developer

Bipani Retails Pvt ltd

Mar,2024 — Nov,2024

•• Developed new features, optimized UI performance, and fixed bugs.

•• Implemented new frontend features and enhanced existing UI components.

•• Optimized images and static assets to improve loading speed.

Currently available for new projects

Have a product idea or need help improving an existing application?

Let's discuss what you're building and figure out the best way to move it forward.

I typically respond within 24 hours.