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  • DevScale D.S
  • Tunis

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hamzaMissewi/README.md

Hi👋 I'm Hamza Missaoui

Lead Full-Stack Engineer & Cloud/AI Architect | MERN • Next.js • Python • AWS · GCP · Azure • DevOps • GenAI & Agentic Systems




🚀 About Me

Lead Full-Stack Engineer & Tech Project Manager with years of experience designing, architecting, and shipping production-grade cloud-native and vertical SaaS platforms — including a real-time synchronization engine connecting a central server to a distributed fleet of 10,000+ devices. I've driven a 30% reduction in deployment times and a 50% cut in MTTR by building RESTful and GraphQL services across the MERN stack, Next.js/TypeScript, Python (FastAPI/Django), C#/.NET, Java (Spring), and Go — with a consistent focus on event-driven design, observability, and reliability at scale.

  • 🏢 Currently Lead Full-Stack Engineer & CTO at DevScale Digital Solutions — owning architecture and technical roadmap across a portfolio of SaaS and AI-native client platforms spanning 5+ concurrent initiatives.
  • 🧱 Full-stack depth across the MERN ecosystem (MongoDB, Express, React, Node.js) and Next.js/TypeScript, complemented by polyglot backend experience in Python, C#/.NET, Java, and Go.
  • 🤖 Building LLM/RAG pipelines, MCP-based agentic AI, and multi-agent orchestration systems with LangChain & LangGraph.
  • ☁️ Multi-cloud, DevOps-first mindset — AWS · GCP · Azure, Docker, Kubernetes, Terraform, and CI/CD automation (GitHub Actions, Jenkins, Bitbucket Pipelines).
  • 🏗️ Strong foundation in Domain-Driven Design, Event-Driven Architecture, Microservices, and Service-Oriented Architecture (SOA) — grounded in formal design-patterns training.
  • 📊 Track record of measurable impact: 30%+ faster deployments, 50% lower MTTR, 45% smaller frontend bundles, 80%+ integration test coverage on modernized services.

GitHub Stats


🔥 Featured Projects

Full-stack MERN-based retail microservices system with Docker containerization and Kubernetes orchestration, managing product inventory and orders with cloud-native configuration.

Node.js Express MongoDB Docker Kubernetes

Modular ETL pipeline with vector store integration, LLM agent orchestration, and applied logistics scenario implementation.

Python ETL Vector Store LLM Agents

Production-ready multi-agent orchestrator backend that routes complex prompts through a specialized AI agent assembly line, built entirely on .NET.

C# .NET Multi-Agent Orchestration

Real-time cold chain logistics monitoring SaaS built for Tunisian businesses exporting temperature-sensitive goods to European markets.

Java Spring SaaS Real-Time

AI-powered Career Operating System SaaS scaffold — premium landing page, dashboard, pricing, and admin structure built on Next.js.

TypeScript Next.js SaaS AI

Agentic system built on the Model Context Protocol (MCP) for multi-agent coordination and tool-use workflows.

JavaScript MCP Agentic AI

Automated quality-assurance testing framework with intelligent test generation and reporting.

JavaScript Testing Automation


Skills & Tech Stack

Programming & Scripting

C# JavaScript TypeScript Python Java Go

Backend & APIs

Node.js Express NestJS .NET FastAPI Django Spring REST GraphQL WebSockets BullMQ

Frontend

React Vite.js Next.js Angular Redux Context API MUI Shadcn Tailwind CSS Three.js

Databases & ORMs

SQL Server PostgreSQL MySQL MongoDB Redis Firebase Prisma TypeORM

Architecture & Practices

Microservices DDD Event-Driven Architecture Design Patterns SOA TDD MVC MVP

Cloud & DevOps

AWS GCP Azure Docker Kubernetes Terraform Ansible GitHub Actions Jenkins Bitbucket Pipelines

Security & Access Control

OAuth 2.0 JWT SSO MFA RBAC Better Auth Clerk

Monitoring & Observability

Sentry Grafana Prometheus Datadog ELK Stack

AI / LLM / GenAI

LLMs Generative AI RAG LangChain LangGraph MCP Multi-Agent Systems ChromaDB TensorFlow PyTorch

🧑‍💼 Leadership & Delivery

Technical Documentation Code Reviews Requirements Analysis Agile/Scrum Mentoring

Socials

Pinned Loading

  1. langchain-open-swe langchain-open-swe Public

    Python 2

  2. career-os-ai-resume-builder career-os-ai-resume-builder Public

    CareerOS AI is a modern SaaS scaffold for an AI-powered Career Operating System. The app includes a premium landing experience, dashboard, pricing, and admin structure designed for rapid extension…

    TypeScript 3