Senior Full-Stack Engineer specializing in React Native, Node.js, and TypeScript, with a strong focus on scalable systems, clean architecture, and AI-powered products.

Full-Stack Developer | React Native • Node.js • TypeScript • Electron
8+ Years Experience | Building Production-Ready, Cross-Platform Applications

• Full-stack engineer experienced in
  JavaScript, TypeScript, Node.js, MongoDB, React Native, Electron.js, Ionic, Python, FastAPI
• Passionate about high-performance applications, clean architecture, and testing
• Strong background in cloud-native systems and AWS deployments
• Experienced with Cypress (E2E), CI/CD, and production monitoring
• Working with microfrontend architectures and modular monorepos
• Actively building and integrating Generative AI into real products
• Deep interest in system design, state machines (XState), and scalable APIs

AI-powered WhatsApp auto-responder for businesses

Tech: FastAPI • LLMs • Next.js • AWS (Serverless)

• LLM-generated automated replies
• WhatsApp Cloud API integration
• Lead capture & conversation analytics
• Business catalog automation
• Serverless deployment using AWS Lambda

👉 Repo: https://github.com/swiftreply-ai/swiftreply-ai

Production-grade edge proxy focused on security, traffic control, and observability

Tech: Node.js • JavaScript • Cloud-Native Architecture

• Request routing & traffic control
• Security and policy enforcement
• Observability-ready design
• Built for modern distributed systems

👉 Repo: https://github.com/tapas100/flexgate-proxy

Policy and decision engine for identity, access control, and distributed authorization

Tech: Node.js • JavaScript • System Design Patterns

• Trust & policy evaluation engine
• Decision enforcement for distributed systems
• Designed for extensibility and scale
• Focus on clean abstractions and correctness

👉 Repo: https://github.com/tapas100/einstrust

A scalable React Native application demonstrating predictable state management and testable architecture.

• React Native + TypeScript + XState
• Clean, layered architecture
• Reusable UI components
• Jest & React Testing Library
• Offline support (AsyncStorage / MMKV)

📸 Screenshots & demo coming soon

A high-performance, offline-first desktop application.

• Electron + Node.js backend
• Modular and IPC-driven architecture
• Local persistence (MongoDB / NeDB)
• Auto-update & production bundling

📸 Screenshots & demo coming soon

Planned topics:

1. Why XState works better for complex mobile workflows
2. Application architecture with state machines
3. Navigation and screen composition
4. Testing XState logic with Jest
5. Production build & deployment

✨ First article coming soon

Languages
JavaScript, TypeScript, Python, HTML, CSS

Frontend
React, React Native, Next.js, Ionic

Backend
Node.js, Express, FastAPI, MongoDB, REST APIs

Desktop
Electron.js

Cloud / DevOps
AWS (EC2, S3, Lambda), Docker, GitHub Actions

Architecture
Microfrontends, Modular Monorepos

Testing
Cypress (E2E), Jest, React Testing Library

State & Tooling
XState, Redux, ESLint, Prettier

AI
Generative AI integrations, LLM-driven workflows

• Advanced system design
• Scalable API patterns
• MAANG interview preparation
• High-performance React Native architecture

• 🐙 GitHub: https://github.com/tapas100
• 💼 LinkedIn: https://www.linkedin.com/in/tapasmahanta/

⭐ If you find my work useful, consider starring my repositories.