Open to opportunities

muhammed refaat

@muhammedrefaat

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Full-stack engineer building REST APIs, real-time systems, and AI-integrated applications.

Egypt

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What I'm looking for

I’m looking for a role where I can build clean, maintainable full-stack products—owning backend architecture while integrating AI and delivering responsive real-time experiences across REST APIs and modern UIs.

I’m a full-stack engineer with hands-on experience building REST APIs, real-time systems, and AI-integrated applications using NestJS, React, and TypeScript. I focus on backend architecture and clean, maintainable code, while keeping the full product experience in mind.

I’ve built DocPulse, a multi-tenant RAG document intelligence platform with an async ingestion pipeline (BullMQ + Redis), pgvector semantic search (HNSW), and JWT auth with workspace role guards. I also shipped CodeAnalys, an AI-powered pull request code review platform that decouples HTTP requests from Gemini processing to avoid gateway timeouts, and I delivered Taleex with real-time Vapi AI voice agents plus OAuth and RBAC.

Experience

Work history, roles, and key accomplishments

Full-stack Engineer

DocPulse

May 2026 - Jun 2026 (1 month)

Built a multi-tenant RAG document intelligence platform with an async ingestion pipeline (PDF parse → chunk → embed → store) and semantic search. Implemented Postgres + pgvector search, HNSW indexing, and JWT authentication with workspace role-based access.

NestJS TypeScript PostgreSQL Prisma Pgvector HNSW Indexing Semantic Search Embeddings BullMQ Redis JWT Refresh Token Rotation RBAC Express RxJS Gemini GROQ Next.js

Full-stack Engineer

CodeAnalys

Feb 2026 - Mar 2026 (1 month)

Developed an AI-powered pull request code review platform with a decoupled async review pipeline to avoid gateway timeouts. Implemented GitHub PR diff processing with Octokit and structured Gemini-based issue reporting.

NestJS TypeScript Next.js PostgreSQL Prisma BullMQ Redis Octokit GitHub PR Diff Parsing React Query Zustand Zod React Hook Form Docker

Frontend Engineer

Taleex

Apr 2025 - May 2025 (1 month)

Worked on a team frontend for an AI hiring platform using Vapi AI voice agents for real-time interviews. Implemented an admin panel with RBAC, analytics views, and Google/LinkedIn OAuth integration.

Vapi AI Voice Agents Real Time Interviews Audio Video Recording RBAC OAuth

Full stack MERN Internship

Information Technology Institute (ITI)

Nov 2024 - May 2025 (6 months)

Completed a full-stack MERN internship building a React frontend with REST API integration and a Node.js/Express backend using JWT authentication. Supported delivery of the Taleex graduation project and implemented/testing responsive frontend and backend services.

React REST APIs JWT API Integration State Management Vapi AI Voice Agents

Education

Degrees, certifications, and relevant coursework

Mansoura University

Bachelor of Computer and Information Sciences, Computer and Information Sciences

2020 - 2024

Grade: 2.98/4.0

Bachelor of Computer and Information Sciences (Software Engineer) covering topics including Operating Systems, Linear Algebra, Agile Software Development, Android Programming, Full-Stack Development, and Basic Algorithms. GPA: 2.98/4.0.