# Muhammad Haris Khan — Full Stack Engineer

> Full Stack Engineer building modern full-stack applications, scalable backend systems, and AI-powered products with React, Next.js, Node.js, TypeScript, Python, and PostgreSQL.

Source: https://hariskhan.vercel.app
Contact: mhariskhan129@gmail.com

## Profile
Name: Muhammad Haris Khan
Role: Full Stack Engineer
Location: Peshawar, Khyber Pakhtunkhwa, Pakistan
Summary: Muhammad Haris Khan is a Full Stack Engineer who builds modern full-stack applications, scalable backend systems, and AI-powered products using React, Next.js, Node.js, Express, TypeScript, JavaScript, Python, FastAPI, PostgreSQL, MongoDB, MySQL, Docker, and AWS. Focus areas include backend engineering, system design, and AI-powered applications (agents and retrieval-augmented generation).

## Links
- GitHub: https://github.com/developebyharis
- LinkedIn: https://www.linkedin.com/in/techbyharis
- Twitter/X: https://twitter.com/techbyharis
- Email: mailto:mhariskhan129@gmail.com

## Projects
### AI & Agents

#### OpportunityOS
URL: https://hariskhan.vercel.app/#opportunityos
Tech: Next.js, React, TypeScript, Python, FastAPI, Playwright, AI Agents

An AI-powered job discovery and application management platform that helps developers find relevant opportunities based on their skills, experience, and career goals.

- [View Source](https://github.com/developebyharis/job_agent)

#### PR Doctor
URL: https://hariskhan.vercel.app/#pr-doctor
Tech: Next.js, React, TypeScript, Node.js, Express, GitHub API, Agentic AI

An AI-powered pull request reviewer that coordinates specialized agents to investigate code changes, identify potential issues, and deliver evidence-backed merge decisions. Built for IBM TechXchange 2026.

- [View Source](https://github.com/developebyharis/pr-doctor)

### Web & Full-Stack

#### Tarseel
URL: https://hariskhan.vercel.app/#tarseel
Tech: Next.js, React, TypeScript, NestJS, Node.js, PostgreSQL, Prisma, Redis, Docker

A full-stack Distribution Management System for managing products, suppliers, purchasing, inventory, customer orders, sales, deliveries, payments, and reporting.

- [View Live Site](https://tarseel.vercel.app/)

#### Classroom Management System
URL: https://hariskhan.vercel.app/#classroom-management-system
Tech: Next.js, PostgreSQL, Prisma, Express.js, ShadcnUI

A web-based application designed to organize classroom activities and simplify the management of student and academic information.

- [View Source](https://github.com/developebyharis/Classroom-managment-system)

#### EduGen
URL: https://hariskhan.vercel.app/#edugen
Tech: Web Application

An education-focused application designed to make learning and academic tasks more accessible through technology.

- [View Source](https://github.com/developebyharis/EduGen)

### Games

#### Snake Game
URL: https://hariskhan.vercel.app/#snake-game
Tech: Java, MySQL, Gradle

A classic Snake game recreated as a software project, focusing on game logic, movement, collision detection, and score tracking.

- [View Source](https://github.com/developebyharis/snake-game)

## Research
### Evaluating Multi-Agent Coordination in Automated Code Review
Type: Paper — 2026
Tags: AI Agents, Code Review, LLMs
URL: https://hariskhan.vercel.app/research/#multi-agent-code-review

An evaluation of specialized cooperating agents for reviewing pull requests, measuring how evidence gathering and role specialization affect the precision of merge recommendations.

Link: [Read Paper](https://github.com/developebyharis/pr-doctor)

### Retrieval-Augmented Generation for Domain-Specific Question Answering
Type: Paper — 2026
Tags: RAG, LLMs, Information Retrieval
URL: https://hariskhan.vercel.app/research/#rag-domain-qa

A study of retrieval strategies for grounding large language models in narrow technical domains, comparing chunking and reranking approaches for factual accuracy and citation quality.

Link: [Read Paper](https://github.com/developebyharis)

### Benchmarking FastAPI and Express for I/O-Bound APIs
Type: Experiment — 2025
Tags: FastAPI, Node.js, Performance
URL: https://hariskhan.vercel.app/research/#fastapi-vs-express-benchmark

A comparative benchmark of FastAPI and Express under concurrent I/O-bound workloads, examining throughput, latency tails, and memory footprint across load profiles.

Link: [Read Experiment](https://github.com/developebyharis)

### PostgreSQL vs MongoDB for Hybrid Workloads
Type: Experiment — 2025
Tags: PostgreSQL, MongoDB, Databases
URL: https://hariskhan.vercel.app/research/#postgres-vs-mongo-hybrid-workloads

An experiment comparing relational and document databases on mixed transactional and analytics workloads, with notes on schema design trade-offs and query ergonomics.

Link: [Read Experiment](https://github.com/developebyharis)