Deep expertise in Node.js, Fastify, Express, and Python/FastAPI with production experience in microservices,
event-driven architecture, async queuing (BullMQ/Redis), and RESTful API design. Also experienced in building
AI-powered backends including a production multi-tenant RAG platform with Google Gemini and ChromaDB. Proven
record of cutting latency, optimizing database performance, and delivering secure systems in KSA enterprise
environments.
TECHNICAL SKILLS
Backend & APIs: Node.js, TypeScript, Fastify, Express.js, Python, FastAPI, PHP, C#, .NET Core
REST APIs, OpenAPI/Swagger, ORVAL code generation, JWT, OAuth 2.0, SSO,
RBAC, bcrypt, OWASP
AI / GenAI: LangChain, RAG (Retrieval Augmented Generation), Google Gemini 2.5 Flash,
Gemini Embeddings
Hugging Face Transformers, Ollama (local LLM), ChromaDB, Pinecone, semantic
search, vector embeddings, similarity thresholding
Messaging & Async: BullMQ, Redis Pub/Sub, WebSockets, WebRTC, Kafka, RabbitMQ
Cloud & DevOps: AWS (EC2, S3, ECR, EKS), Docker, Docker Compose, Kubernetes, GitHub
Actions CI/CD
Nginx, multi-stage builds, Render, Netlify
Databases: MongoDB, PostgreSQL, MySQL, Redis, ChromaDB, Pinecone, Prisma ORM
Frontend: React, TypeScript, Redux Toolkit, TanStack Query, Tailwind CSS, HTML5, CSS3,
Bootstrap