💡 I build scalable backend systems, real-time architectures, and AI-powered platforms used in production by global clients.

• 🧠 Design scalable Microservices & Distributed Systems
• ⚙️ Build robust APIs using Node.js, TypeScript, NestJS, Express, Fastify
• 🐘 Develop enterprise-grade systems with Laravel (PHP)
• 🔄 Engineer real-time systems (Socket.io, Webhooks, Queues)
• 💳 Integrate Payments (Stripe, Razorpay) & external APIs
• 🔗 Build Web3 systems (Ethers.js, Wallets, Blockchain apps)
• ☁️ Deploy on AWS, GCP with Docker & CI/CD

I build backend systems with a strong focus on performance, scalability, and real-time capabilities.

Clients (Web / Mobile)
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        ▼
API Layer (REST / GraphQL)
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Backend Services
(Node.js / NestJS / Laravel)
        │
 ┌──────┼────────┬──────────┐
 ▼      ▼        ▼          ▼
Cache   DB       Queue      Realtime
Redis   SQL/NoSQL RabbitMQ  Socket.io
        │
        ▼
External Integrations
(Payments, Webhooks, Web3, APIs)

• Scalable Architecture → Microservices & modular design
• Event-Driven Systems → RabbitMQ, queues, async processing
• Real-Time First → WebSockets, live updates, streaming
• Optimized Data Layer → SQL + NoSQL hybrid approach
• Resilience & Reliability → retries, logging, monitoring
• Security by Design → JWT, OAuth2, HMAC, rate limiting

• Event-driven architecture using RabbitMQ + Node.js
• Processes 50K+ requests/month
• Live updates via Socket.io

• Secure crypto payments using Ethers.js
• Wallet signature verification

• Multi-tenant platform with Stripe subscriptions
• MySQL + MongoDB hybrid architecture

• Fastify + OpenAI pipeline
• Converts unstructured data → structured JSON

Node.js • TypeScript • NestJS • Express • Fastify • Laravel • PHP

MySQL • PostgreSQL • MongoDB • Firebase • Redis Prisma • Sequelize • Mongoose

Socket.io • RabbitMQ • BullMQ • Webhooks • Event Queues

REST • GraphQL • Microservices • Event-Driven Systems • Webhooks

JWT • OAuth2 • HMAC Verification • Rate Limiting • Passport.js

AWS (EC2, S3, Lambda, RDS) • Google Cloud • Docker CI/CD • GitHub Actions • Nginx • PM2

OpenAI • LLM APIs • AI Pipelines • Data Processing Systems

Stripe • Razorpay • Firebase • Email/SMS APIs • Crypto • Third-party APIs

🚀 I help startups & businesses build:

• Scalable backend systems
• Real-time applications
• AI-powered platforms
• SaaS & payment infrastructures

👉 Available for freelance & consulting work

💼 Upwork: https://www.upwork.com/freelancers/divyeshdankhara 📩 Email: dankharadivyesh@gmail.com

• 💼 LinkedIn: https://www.linkedin.com/in/divyesh-d-8a5a20100/

“Great backend systems are invisible — but they power everything.”

⭐ If you like my work, consider starring my repositories!