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mrfelfel/README.md
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Senior Software Engineer · Architect · DevOps · AI Systems

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9 years building production systems across backend, distributed systems, infrastructure, and AI. Language-agnostic, currently deepest in Go, Node.js, and TypeScript. I take products from architecture through deployment and operations — usually as the founding or lead engineer.


Tech Stack

Go TypeScript Node.js Python C# C Erlang Java Kotlin PostgreSQL MongoDB Redis MySQL SQLite Elasticsearch Docker Kubernetes Nginx Linux Proxmox


What I Do

🏗️ Backend & Architecture

  • System design & distributed systems
  • Microservices & real-time systems
  • API design & architecture decisions

🤖 AI Infrastructure

  • LLM APIs, model routing & provider abstraction
  • RAG pipelines & vector search
  • MCP servers & AI agent workflows

⚙️ Infrastructure & DevOps

  • Docker / Podman / Kubernetes
  • CI/CD pipelines & self-managed environments
  • Linux, Nginx, Proxmox, VMware ESXi

📡 Real-Time & Data

  • WebSocket, NATS, Socket.IO, LiveKit
  • Event-driven architectures
  • PostgreSQL, pgvector, MongoDB, Redis

Featured Projects

Project Description Stack
Cat Room Real-time gaming & social platform. 75K+ users (~5K concurrent). Voice/video infra, presence, distributed services Go, Node.js, Moleculer, PostgreSQL, MongoDB, Redis, NATS, Socket.IO, LiveKit, pgvector
RayConnect Firebase-inspired backend platform with auth, database, realtime, file storage & serverless functions via OpenFaaS Go, TypeScript, Docker
SadGPT Multi-provider LLM API layer with model routing, provider abstraction, RAG & vector search LiteLLM, OpenRouter, Python
Taghvim MCP Open-source MCP server for deterministic temporal reasoning: timezone handling, date arithmetic, holidays & calendar conversion TypeScript, MCP


GitHub Stats

GitHub Stats Top Languages


Based in Iran · Open to relocation (Armenia / Georgia / Europe)

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