MySeniorDev

Your senior dev. Always available.

MySeniorDev is a local-first AI code reviewer powered by Gemma 4 E2B running via Ollama. Paste any file from your project and get an honest, specific code review — the kind a senior developer gives in a real pull request. Private by default. Your code never leaves your machine.

Built for self-taught developers who have never had a mentor.

What It Does

• Security Review — finds hardcoded secrets, missing validation, auth holes, and exposed environment variables
• Architecture Review — flags god files, mixed concerns, duplicated logic, and patterns that won't scale
• General Review — full senior dev code review across security, structure, and code quality
• Vibe Code Mode — explains AI-generated code you don't fully understand and flags what's dangerous
• Follow-up Chat — ask questions after the review, Gemma 4 remembers your full file context

Prerequisites

• Node.js v18+
• Ollama installed and running

Setup

# 1. Clone the repo
git clone https://github.com/yourusername/myseniordev
cd myseniordev

# 2. Install dependencies
npm install

# 3. Pull Gemma 4 E2B locally
ollama pull gemma4:e2b

# 4. Start Ollama in a separate terminal
ollama serve

# 5. Start the app
npm run dev

Open http://localhost:5173

Environment Variables (Optional)

Create a .env file in the backend folder for Google AI Studio fallback:

GOOGLE_AI_KEY=your_key_here

The app works fully offline without this. The fallback is used automatically if Ollama is unavailable.

Tech Stack

• AI — Gemma 4 E2B via Ollama (local) + Google AI Studio (fallback)
• Frontend — React + Vite
• Backend — Node.js + Express

Why Local

Every other AI code review tool sends your code to a server. For a developer pasting real production files with real secrets, that is a genuine security risk most beginners don't know about. MySeniorDev runs entirely on your machine. Nothing leaves your computer.