System Design LLM - Ace Your Toughest Interviews

How System Design LLM Helps You

Step 1: You take a screenshot of the problem,
e.g - "Design YouTube's Backend"
(Press Ctrl/Cmd + H).

Step 1: Or Enter it manually.
(we provide context around the system, you can just name it.)

Step 2: Generate the system architecture solution
(Press Ctrl/Cmd + Enter).

Step 3: This is where the magic happens, we generate a detailed solution breaking it into detailed steps and also provide the common follow up questions.

Img: Your interviews screen during all this 😳
100% invisible to the interviewer. (tested on Google Meet, Zoom, Microsoft Teams, etc).
PROOF: Live Session

Your Unfair Advantage in System Design

Go beyond memorizing. Get our trusted undetectability features used by hundreds of developers @ interviewLLM.dev

Undetectable Tab Switching

Switch between windows seamlessly during interviews. Our advanced tab detection makes us completely invisible to monitoring systems.

Invisibility

We operate at the OS level, making it completely invisible.

Expert-Level Solutions

Get comprehensive solutions with detailed explanations, and the 10 highly likely followups.

Natural Integration

Integrate assistance during interviews with intuitive shortcuts and smart window positioning that appears completely natural.

Ready to Invest in Your Career?

☀️ Limited Summer Sale is Here! ☀️

Ends in:

One payment. Lifetime access. No annoying subscriptions.

Lifetime Subscription

$69$39/one-time

Full control, extensive customization options, and dedicated support.

✓Full Source Code Access (Get added to our Private GitHub Repo)
✓Get both Windows & macOS applications
✓Access All Future Updates through GitHub Releases
✓Use Any LLM provider You Want (Gpt, Claude, and Gemini.)
✓Detailed Setup, Installation & Customization Instructions
✓Priority 1-on-1 Support (We got your back!)

Get Both & Save
System Design LLM + Interview LLM for:

$69 (50% off!)

Ultimate prep for both coding and system design interviews.

The Plan Also Gets You:

✓Quick Access: Start using it almost immediately after purchase.
✓Easy Setup: Just plug in your own AI API key (OpenAI, etc.).
✓Simple guides to get you running fast.
✓Buy Once, Use Forever: Seriously, no recurring fees.
✓Questions? Email us: gregtannenbaum@proton.me

Still Wondering? Your Questions Answered.

Think of it as a sparring partner. It forces you to consider different angles: "What if traffic spikes?", "How would you handle data consistency?", "Why this database over that one?". It helps you practice *thinking* and *talking* about design trade-offs, which is what interviewers really want to see. Plus, quick access to patterns saves you from freezing up.

It focuses more on the *principles* behind using tools like AWS services or Kafka (e.g., when to use a message queue, how to ensure fault tolerance). The Lead Architect plan lets you customize prompts to be more tech-specific if you want, but the core value is understanding the *why*, not just the *what*.

Pretty much! If it has an API or you can run it locally and interface with it, the source code access gives you the flexibility to integrate it. We provide examples for common ones like OpenAI and Anthropic (Claude), but you're free to tinker and connect others.

This is just a reference tool, so that you dont freeze up during a technical interview due to a concept you cant think of on the spot.

If you hit a genuine technical snag that stops it working within 7 days, show us a quick screen recording, and we'll sort out a refund. We stand by the tool, but please check OS compatibility first! (Not Compatible with MacOS Sonoma right now)

Super fast! You should get an email with the GitHub invite within a few hours maximum as it is a manual process right now, ususally within an hour, Check your spam folder just in case!

Start Acing System Design Interviews.

How System Design LLM Helps You