Backend System Architect

I build robust, high-performance backend systems.

Hey there, I'm Shahadath Hossen Sajib — Backend Developer specializing in scalable microservices, real-time features, and secure AI-powered solutions.

👋 About Me

I design robust RESTful APIs, manage PostgreSQL, MongoDB, and Redis databases, while building real-time features with specialized focus on microservices architecture. I deliver large, configurable backend systems with complex workflows and multi-module operations.

  • Experienced with Socket.IO, BullMQ, and real-time communication patterns
  • Hands-on with Docker, CI/CD (GitHub Actions), AWS (EC2 & S3), Nginx, and Caddy
  • Built real-time logistics systems (Uber-style), payment platforms, and AI-powered automation
  • Contributed to 20+ production websites and led frontend teams in monorepo environments
  • Open to collaboration and backend-focused opportunities
69+
Public Repositories
2+
Years Experience
CI/CD
Actions Specialized
Microservices
Architecture Expert

💼 Experience

Digital Pylot
Back End Developer
Feb 2026 — Present
  • Contributing to a large-scale microservices backend
  • Building scalable services & complex workflows
  • AI/communication integrations across multiple modules
Softvence Agency
Back End Developer
Jul 2025 — Feb 2026
  • Built real-time logistics and trip tracking (Uber-style)
  • Engineered platform-level payment systems & payroll automation
  • Developed high-volume data platforms and AI-powered automation
  • Maintained AWS infrastructure and PostgreSQL schemas
Monster Studio
Web Developer
Aug 2024 — Apr 2025
  • Contributed to 20+ production websites in a monorepo
  • Led frontend team & built custom CMS tools
  • Strengthened product reliability through unit tests

🛠️ Tech Stack

⚙️ Backend
Node.js
Express
NestJS
Python
FastAPI
TypeScript
🗄️ Databases
PostgreSQL
MongoDB
Redis
Prisma
Mongoose
Drizzle
⚡ Real-time
Socket.io
WebRTC
BullMQ
☁️ Cloud & DevOps
Docker
AWS
GitHub Actions
Nginx
Caddy

📊 GitHub Stats

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Public Repos
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Followers
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🚀 Featured Projects

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✍️ Latest Blog Posts

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📫 Get In Touch

Feel free to reach out for collaboration, backend-focused opportunities, or just to say hello!

📧 Email 📄 Resume 🌐 Portfolio 💼 LinkedIn 🐙 GitHub ✍️ Medium 📰 Substack 🧩 LeetCode