Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Backend and AI Systems Engineer with 3+ years of production experience designing high-concurrency microservices, financially correct ledgers, and production-grade GenAI/agentic architectures. Expert at combining robust backend fundamentals (Go, C, PostgreSQL RLS) with advanced LLM orchestration (RAG, ReAct agent loops, CrewAI, semantic caching, vector databases).…

Muhammad Ali Cairo

Back-End Developer, Full Stack Developer, Web Developer, +3





Backend and AI Systems Engineer with 3+ years of production experience designing high-concurrency microservices, financially correct ledgers, and production-grade GenAI/agentic architectures. Expert at combining robust backend fundamentals (Go, C, PostgreSQL RLS) with advanced LLM orchestration (RAG, ReAct agent loops, CrewAI, semantic caching, vector databases).…

Available to hire

Backend and AI Systems Engineer with 3+ years of production experience designing high-concurrency microservices, financially correct ledgers, and production-grade GenAI/agentic architectures. Expert at combining robust backend fundamentals (Go, C, PostgreSQL RLS) with advanced LLM orchestration (RAG, ReAct agent loops, CrewAI, semantic caching, vector databases).

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

Arabic

Fluent

English

Advanced

Work Experience

Backend and AI Systems Engineer at Meridien Engine

September 1, 2025 - Present

Architected Mera Brain, an autonomous ReAct-pattern AI reasoning loop with dynamic tool-calling and a 5-turn execution cap to prevent infinite LLM loops. Ensured financially correct pricing by restricting the agent to SKU/quantity extraction and resolving prices from a PostgreSQL catalog via a Go service layer with decimal-safe arithmetic. Designed a 4-service gRPC/Protobuf modular monolith (ERP Core, Synapse identity resolution, Knowledge with pgvector search, and Mera Brain). Enforced multi-tenant isolation using PostgreSQL Row-Level Security with transaction-scoped context. Built AI observability for prompts, reasoning steps, tool calls, and retrieved chunks in Grafana/Prometheus to monitor token usage and RAG latency.

Software Engineer at Meridien Engine - Open-source project

August 1, 2025 - Present

Architected an agentic customer-support system using Go, gRPC, and Protocol Buffers. Designed a modular monolith that allows for the clean migration to microservices and improved API response times through efficient database optimization.

Freelance Developer at Digital Publishing Company

September 1, 2024 - September 1, 2025

Automated cloud deployment pipeline using AWS EC2, reducing build costs by 99.7% through spot instances. Built Electron desktop application with TypeScript for PDF rendering and annotation features. Integrated FFmpeg for media processing and S3 for file storage. Wrote Node.js scripts for API integration and automated build workflows.

Freelance Software Engineer at MediaSee

August 1, 2024 - August 1, 2025

Developed RESTful APIs and backend services, automated CI/CD processes on AWS, and built a full-stack PDF tool with media compression capabilities, significantly enhancing client applications' reliability and performance.

Sole Full-Stack Engineer at Bella Egypt

January 1, 2023 - February 1, 2025

Built a full-stack ERP/CRM system from scratch (MERN stack) to handle inventory, sales, and customer lifecycle as the sole engineer. Developed an autonomous Gemini-powered customer support chatbot that increased qualified sales leads by 25%. Reduced LLM API costs by 30% by implementing a pgvector semantic caching layer in the RAG pipeline. Enforced multi-tenant isolation using PostgreSQL Row-Level Security to keep customer data separated.

Founder & Sole Engineer at Bella Egypt

January 1, 2023 - February 1, 2025

Designed and built a comprehensive ERP and CRM system from the ground up, incorporating AI solutions that improved customer support and operational efficiency, leading to a measurable increase in lead qualification.

Software Engineer at Bella Egypt

January 1, 2023 - February 1, 2025

Developed ERP/CRM web application using MERN stack (MongoDB, Express, React, Node.js). Built chatbot using Google Gemini API for customer support and lead qualification. Created analytics dashboard with Recharts for data visualization. Maintained backend APIs and database schemas.